Manitowoc Merrychef eikon e2s Service And Repair Manual Download Page 156

Page: 156 / 193

12 Replacing components

eikon e2s Service and Repair Manual UL

156

12.6 Replacing the cooling fan

Component

The cooling fan is located under the cavity and can be accessed
by removing the convection fan motor speed controller.

Tools required

M7 hex socket wrench

Requirements

Check that the following requirements have been met:



The appliance has been disconnected from the power supply and protective measures have been

taken to ensure the power cannot be switched on again.



The appliance is cool.



The top and side panels of the casing of the appliance have been removed.



The cooling fan speed controller is removed.



The high voltage capacitors are discharged before commencing work.



Anti-static precautions have been taken.

Summary of Contents for Merrychef eikon e2s

Page 1: ...Microwave Combination Oven Read instructions before use Merrychef eikon e2s Service and Repair Manual UL Original USA CAN Part Number 32Z3936 ...

Page 2: ...precautions during installing 33 3 9 Hazards and safety precautions when preparing appliance for use 34 3 10 Hazards and safety precautions during cleaning 35 3 11 Hazards and safety precautions during servicing and repair 37 3 12 Hazards and safety precautions when taking the appliance out of service 39 3 13 Safety devices 40 3 14 Requirements to be met by personnel and working positions 42 3 15 ...

Page 3: ...removed 116 11 Firmware 117 11 1 Firmware Updates 118 12 Replacing components 134 12 1 Safe working when replacing appliance parts 135 12 2 Overview 138 12 3 Removing fitting the casing 143 12 4 Removing fitting the door assembly 146 12 5 Replacing a magnetron 151 12 6 Replacing the cooling fan 156 12 7 Replacing the QTS Quick Touch Screen assembly 158 12 8 Replacing the SRB Smart Relay Board 163 ...

Page 4: ...icrowave combination oven and provides guidance on using this manual Contents This chapter contains the following topics Page Important Information 5 Renseignements importants à lire avant l utilisation 5 Environmental protection 5 Identifying your microwave combination oven 6 Structure of technical documentation 7 About this Service and Repair Manual 7 ...

Page 5: ...ies avec l appareil ou à tout produit dont le numéro de série a été abîmé effacé ou enlevé ou qui a été modifié ou réparé en utilisant des pièces non autorisées ou par des agents de service non autorisés Pour la liste des agents de service autorisés se référer à la dernière page de ce manuel Les renseignements contenus dans ce manuel incluant les spécifications de la conception et des pièces peuve...

Page 6: ...ower version Voltage 30 230V MV5 220 230V 50Hz MV6 208 240V 60Hz 00 200V 20 220V Frequency 5 50Hz 6 60Hz Lead A Z Example H L N E 4mm EU Plug A Z Example E 3 pin plug Communication L USB LAN U USB Version A B A B pre production 1 2 1 2 serial production Accessory Customer CF Trend exterior CL Classic exterior WW Specific customer Region Country EU Europe US United States of America 3 Elements of t...

Page 7: ...tion oven must have read and understood the following parts of this document before starting any work The chapter For your safety on page 13 The sections that describe the activity to be carried out Parties du présent document à lire absolument Le non respect des informations contenues dans ce document vous fait encourir risques de blessures même mortelles ainsi que des dommages matériels Pour ass...

Page 8: ...ents of the appliance Firmware Explains the procedure to check and to update the firmware of the appliance Replacing components Contains instructions for removing and fitting the appliance parts in order to repair a defective appliance Circuit diagrams and boards Shows electrical circuit diagrams and terminal locations on boards Commissioning the appliance Contains checklists which actions to take...

Page 9: ...es niveaux de risque suivants Niveau de risque Conséquences Probabilité Mort blessures graves irréversibles Imminent Mort blessures graves irréversibles Eventuellement Blessure légère réversible Eventuellement REMARQUE Dommages matériels Eventuellement Decimal points Decimal points are used throughout this manual in any language available ...

Page 10: ...ose of this chapter This chapter describes the design and construction of the microwave combination oven and explains its functions Contents This chapter contains the following topics Page Design and function of the microwave combination oven 11 Layout and function of the operating panel 12 ...

Page 11: ...r Manual See Cooking procedures section of this manual for details of updating cooking profiles 5 Air outlets no picture Air used to cool internal components and steam from the cavity escape through the air outlet vents located on the rear of the appliance The air outlets must be kept free from obstruction and they will not allow microwave energy to escape into the environment 6 Appliance door The...

Page 12: ...ning procedures on page 68 in this manual 11 Cavity The cavity cooking chamber is constructed from stainless steel and used for cooking products Keep it clean by following the cleaning instructions in the Cleaning procedures on page 68 section of this manual Material The interior and exterior structure of the appliance is made of stainless steel in either a brushed finish or colour coded 2 2 Layou...

Page 13: ...ng signs on your microwave combination oven 24 Summary of hazards 27 Aperçu des risques 29 Hazards and safety precautions when moving the appliance 31 Hazards and safety precautions when setting up the appliance 32 Hazards and safety precautions during installing 33 Hazards and safety precautions when preparing appliance for use 34 Hazards and safety precautions during cleaning 35 Hazards and safe...

Page 14: ...ance must be installed in compliance with all national and state laws and regulations with all applicable local requirements and regulations set forth by the relevant local utility companies and authorities and with all other relevant regulations and standards These include but are not limited to The National Electrical Code ANSI NFPA 70 current edition The Canadian Electrical Code CSA C22 1 The F...

Page 15: ...nnect only to a properly grounded outlet See GROUNDING INSTRUCTIONS on page 54 Install or locate this appliance only in accordance with the provided installation instructions Restrictions on use Use this appliance only for its intended use as described in the manual Do not use corrosive chemicals or vapors in this appliance This type of oven is specifically designed to heat cook or toast food It i...

Page 16: ...oven ensure that food is totally free of glass particles If in doubt dispose of any food that was in the oven at the time of the breakage Switch off the appliance at the end of all the cooking sessions for that day To reduce the risk of fire in the oven cavity Do not overcook food Carefully attend appliance when paper plastic or other combustible materials are placed inside the oven to facilitate ...

Page 17: ...or plug in water Keep the supply cord away from heated surfaces Do not let the supply cord hang over an edge of a table or counter Requirements relating to the operating environment of the microwave combi nation oven Do not store this appliance outdoors Do not use this product near water for example near a kitchen sink in a wet basement near a swimming pool or similar locations The floor adjacent ...

Page 18: ...ffer cuire ou sécher des aliments Il n est pas conçu pour un usage commercial ou en laboratoire 7 Cet appareil ne devrait pas être utilisé par les enfants 8 Ne pas utiliser cet appareil si le cordon électrique ou la prise sont endommagés s il ne fonctionne pas correctement ou s il a été endommagé ou échappé 9 Cet appareil doit être entretenu uniquement par un personnel de service qualifié Contacte...

Page 19: ...8 NE PAS UTILISER la fonction micro ondes seulement ou la fonction combinée s il n y a pas d aliment ou de liquide dans le four puisque ceci pourrait causer une sur chauffe et des dommages 19 NE JAMAIS RETIRER le boîtier extérieur du four 20 NE JAMAIS RETIRER les parties internes fixes du four 21 NE JAMAIS TRAFIQUER le tableau de commande la porte les joints ou toute autre pièce du four 22 NE JAMA...

Page 20: ...r à mi cro ondes ordinaires pour prévenir les risques d ignition 8 Les articles devraient être déballés lorsque les fonctions de cuisson par convection ou combinée sont utilisées 9 Les oeufs en coquille et les oeufs durs complets ne doivent pas être chauffés dans le four puisqu ils peuvent exploser 10 Les aliments avec pelure c à d pommes de terre pommes saucisse etc devraient être percés avant d ...

Page 21: ...e relevant instructions and ALWAYS follow the Safety Codes when servicing an oven 1 Ensure the electrical supply is locked off to prevent the oven from being inadvertently powered up 2 Do not leave the oven unattended without the oven panels fitted and keep within sight of other personnel when testing the oven ensuring persons other than trained engineers are denied access 3 The minimum number of ...

Page 22: ... hinges and latches 5 evidence of dropping or abuse c Before turning on microwave power for any service test or inspection within the microwave gen erating compartments check the magnetron wave guide or transmission line and cavity for proper alignment integrity and connection d Any defective or misadjusted components in the interlock monitor door seal and microwave generation and transmission sys...

Page 23: ...ss it has been properly transported set up installed and placed into operation as indicated in this manual and the person responsible for placing it into operation has confirmed this The microwave combination oven must only be operated when all safety devices and protective equipment are fitted in working order and fixed properly in place The manufacturer s regulations for operation and servicing ...

Page 24: ...3 For your safety eikon e2s Service and Repair Manual UL 24 3 3 Warning signs on your microwave combination oven Warning and safety signs ...

Page 25: ...specting the minimum clearances 4 Hot surface warning There is a risk of burns from high temperatures inside the cavity and on the inside of the appliance door 5 Electric shock warning There is a risk of electric shock if the electrical power is not connected to a properly grounded outlet Symboles d avertissement nécessaires Les avertissements suivants doivent toujours être apposés bien visibles s...

Page 26: ... oven and optional accessories in the area indicated so as to be easily visible at all times Area Safety symbol Description 1 Protective Earth Ground Symbole de sécurité Les avertissements suivants doivent toujours être apposés bien visibles sur le four mixte dans les zones repérées Zone Symbole de sécurité Description 1 Mise à la terre Ground ...

Page 27: ... that these safety devices are in place and in working order The nature of these residual risks and what effect they have are described below Hazard points The following illustration shows a Merrychef e2s microwave combination oven Excessive microwave energy The microwave combination oven generates microwave energy An operation with an open or damaged door or cavity can result in external and inte...

Page 28: ...foodstuffs may also be liquid or liquefy during cooking This poses a risk of scalding from hot liquids which may be spilled if not handled properly Live components 3 The microwave combination oven contains live parts This means a risk from live parts if the cover is not in place Contact with cleaning chemicals The microwave combination oven must be cleaned using special cleaning chemicals This pos...

Page 29: ...s la suite la nature de ces risques résiduels et quels effets ils peuvent avoir Zones dangereuses La figure suivante montre un four micro ondes combiné Merrychef e2s Excessive microwave energy Le four micro ondes combiné génère de l énergie micro ondes Utilisation de l appareil avec une porte ou une cavité ouverte ou endommagé peut causer des brûlures externes et internes des parties du corps suit...

Page 30: ...de superposition Liquides très chauds Le four micro ondes combiné permet de cuire des aliments Ces aliments peuvent également être liquides ou se liquéfier pendant la cuisson Ceci a pour conséquence un risque d échaudure par des liquides chauds pouvant être renversés en cas de manipulation incorrecte Pièces sous tension 3 Le four micro ondes combiné comporte des pièces sous tension Ce qui signifie...

Page 31: ...equipment Safety hazard mechanical parts of the appliance Danger Where or in what situations does the hazard arise Preventive action Risk of body parts being crushed if the appliance is dropped When moving the appliance Use suitable handling gear Move the appliance slowly and care fully and secure it against tipping over Make sure center of gravity is balanced Avoid jolts Risk of body parts being ...

Page 32: ...Always use the correct number of persons and observe the limits speci fied for lifting and carrying when ad justing the appliance position Observe the local occupational safety regulations Wear personal protective equipment Safety hazard mechanical parts of the appliance Danger Where or in what situations does the hazard arise Preventive action Risk of body parts being crushed if the appliance is ...

Page 33: ...ng the mains power lead Work on the electrical system must only be performed by qualified electricians from an authorised service company Professional working Ensure that all electrical connections are in perfect condition and fixed securely before putting the appliance into use Safety hazard mechanical parts of the appliance Danger Where or in what situations does the hazard arise Preventive acti...

Page 34: ...must only be performed by qualified electricians from an authorised service company Professional working Ensure that all electrical connections are in perfect condition and fixed securely before putting the appliance into use Additional safety hazards when preparing appliance for use When preparing the appliance for use read and follow the safety information given in this chapter and also the foll...

Page 35: ... Wash off the cavity using a clean cloth and plenty of clean warm water then wipe with a soft cloth or paper towel Safety hazard heat Danger Where or in what situations does the hazard arise Preventive action A risk of burns from hot surfaces Inside the entire cavity including all parts that are or were inside during cooking such as Racks Containers baking sheets shelf grills etc On the inside of ...

Page 36: ...rical cables Risk of tripping from exposed cables While cleaning behind appliances when pulled forward Exercise caution when performing this action Safety hazard electrical power Danger Where or in what situations does the hazard arise Preventive action Risk of electric shock caused by a short circuit If the appliance comes into contact with water Do not wash down the outer case with water Always ...

Page 37: ...the electrical system must only be performed by qualified electricians from an authorized customer service company Before removing the covers Switch off all connections to the power supply Take protective measures at every power switch to ensure that the power cannot be switched on again Wait 15 minutes to allow the DC bus capacitors to discharge Make sure that the appliance is de energized Make s...

Page 38: ...he hazard arise Preventive action Risk of crushing of body parts While appliances are being moved on a wheeled platform Disconnect the appliance from the electrical supply before moving it When servicing the appliances always engage the parking brake on the wheels Risk of hands and feet being pinched Risk of electric shock from live parts Safety hazard smoke or fire Danger Where or in what situati...

Page 39: ...f injury from over stressing your body When moving the appliance onto and off the moving equipment Use a forklift truck or pallet truck Do not exceed safety limits for lifting and carrying Wear personal protective equipment Safety hazard mechanical parts of the appliance Danger Where or in what situations does the hazard arise Preventive action Risk of body parts being crushed if the appliance tip...

Page 40: ...ace 2 Operating panel can only be removed using a tool Prevents live parts from being touched accidentally Ensure that the operating panel is in place 3 Door seal Protects the user and outside environment from microwave energy leaking from the cavity Check the door seal regularly for signs of damage and replace it if required 4 Appliance door Protects the user and outside environment from hot stea...

Page 41: ...ily visible and accessible 1 or 3 pole action minimum contact separa tion 3 mm Used to disconnect the appliance from the power supply during cleaning repair and servicing work and in case of danger Action Trip the disconnection device 7 no picture Internal fuses Prevent faulty components from drawing too much current and causing potential fire hazard Ensure that the internal fuses are correctly ra...

Page 42: ...t Has relevant technical training Is trained in the particular appliance Knows the regulations associated with handling heavy loads All servicing and repair work Working positions during servicing and repairs The service area for staff during servicing and repair work is the area around the appliance If it is not possible to obtain full access to all sides of the appliance move it to a better loca...

Page 43: ...ive clothing Heat protective gloves Safety boots Dismantling the appliance taking out of operation Suitable lifting gear Forklift truck or pallet truck Protective gloves Safety boots Hard hat e g when heavy loads are being lifted working overhead Cleaning Activity Materials used Personal protective equipment Cleaning the cavity by hand Handling spray bottles Cleaning chemicals approved by the manu...

Page 44: ...ty eikon e2s Service and Repair Manual UL 44 Repairs Activity Protection equipment All repair work Work wear and personal protective equipment depending on the job that needs doing as specified in national regulations ...

Page 45: ...n individuelle Installation et désinstallation mise hors service du raccordement électrique Outillage et équipements selon activité Vêtements de travail et équipement de protection individuelle en fonction de l activité exigée selon les consignes nationales en vigueur Mise en service de l appareil Formation de l utilisateur Outillage et équipements selon activité Vêtements de travail selon les nor...

Page 46: ...es techniques de sécurité des produits de nettoyage respectifs dont vous pouvez vous procurer la version actuelle auprès du fabricant Respecter les étiquettes des nettoyants Nettoyage de composants et accessoires selon les notices respectives Produit de rinçage ménager préservant la peau non alcalin de pH neutre et sans odeur Observer les indications du fabricant respectif de produit nettoyant Net...

Page 47: ...nformation on how to set up your appliance This chapter is intended for the user and for a qualified member of staff from an authorized service company Contents This chapter contains the following topics Page Safe working when setting up the appliance 48 Requirements for the installation location 49 Mounting the appliance on a work surface 51 ...

Page 48: ...ersonal protective equipment Wear the following personal protective equipment specified in the section Personal protective equip ment on page 43 of the For your safety chapter for the relevant tasks Moving heavy loads Risk of injury from lifting incorrectly When lifting the appliance the weight of the appliance may lead to injuries especially in the area of the torso Use a forklift truck or pallet...

Page 49: ...larm or sprinkler system Fire alarm in stallations and sprinkler systems must be set up to handle the level of steam and vapour expected to escape from the appliance when the door is opened It must be possible to set up the supporting structure for the appliance work surface stand or stacking kit in the installation position so that it cannot tip over or slide about The supporting surface must sat...

Page 50: ...on and operating situations They also show the minimum horizontal distances from adjacent walls and sur faces The safety clearance on the top must always be complied with Meaning Space required A Safety clearance from the top in 2 mm 50 B Depth requirement appliance door open at 90 in 12 2 mm 310 C Installation height in 36 mm 916 Safety clearance on left right hand side at rear in 0 mm 0 ...

Page 51: ... up the appliance safely Observe the following rules to ensure that the appliance is installed in a stable situation It must be possible to set up the work surface in the installation position so that it cannot tip over or slide about The supporting surface must comply with the requirements The work top must have a non slip surface ...

Page 52: ...ation Purpose of this chapter This chapter explains how to connect your microwave combination oven to the electrical supply Contents This chapter contains the following topics Page Safe working during electrical installation 53 Planning the electrical installation 54 ...

Page 53: ... danger survenant en raison de raccordements électriques défectueux observer les consignes suivantes Le raccordement à l alimentation électrique doit être effectué conformément à les normes locales et nationales d installation électrique et à toutes les autres prescriptions et lois nationales et fédérales fondamentales ainsi qu aux prescriptions locales des fournisseurs d énergie locaux des associ...

Page 54: ...rm When moving the assembly platform plus appliance never place the mains power lead under tension All electrical connections must be checked when the appliance is prepared for first time use to ensure cables are laid correctly and connections are made properly Equipment provided by customer and electrical installation regulations The table below shows what equipment must be provided by the custom...

Page 55: ...RRE CET APPAREIL DOIT ÊTRE MIS À LA TERRE LE MANQUEMENT À CETTE RÈGLE PEUT RÉSULTER EN DES CHOCS ÉLECTRIQUES POUVANT CAUSER LA MORT Pour tous les appareils avec cordon INSTRUCTIONS POUR LA MISE À LA TERRE Cet appareil doit être mis à la terre Si un court circuit électrique survient la mise à la terre réduit les risques de chocs électriques en offrant un conducteur de fuite pour le courant électriq...

Page 56: ...per VFD Use an appropriate GFCI as required for the relevant rated voltage Ground fault circuit interrupter properties The ground fault circuit interrupter GFCI must have the following properties High frequency current filtering Time delayed trip characteristic trip curve for GFCIs with a trip threshold 30mA Prevents GFCIs from tripping as a result of capacitances and capacitance related disturban...

Page 57: ...his chapter This chapter shows you how to put the microwave combination oven into operation and how to cook Contents This chapter contains the following topics Page Safe working when preparing the appliance for use 58 Procedure for preparing the appliance for use 61 Start page 64 The keyboard screen 65 Using a USB stick 66 ...

Page 58: ...t on page 43 of the For your safety chapter for the relevant tasks Rules for safe operation of the appliance To avoid hazards the following rules must be observed during operation The exhaust vent on the rear of the appliance and the ventilation holes in the front of the appliance base must not be covered obstructed or blocked Ensure all appropriate accessories are fitted To avoid hazards the foll...

Page 59: ...In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures IN CASE OF RADIO OR TELEVISION INTERFERENCE This equipment generates and uses radio frequency energy and if not installed and operated correctly in strict accordance with the manufacturer s instructions may cause harmful interference to authorized radio communication...

Page 60: ...aucune garantie que des interférences ne surviendront pas dans une installation donnée Si cet équipement cause de l interférence à la réception des signaux ra dio télévision ce qui peut être facilement déterminé en commutant l équipement en hors circuit nous recommandons à l utilisateur de tenter d éliminer l interférence en utilisant une ou plusieurs des méthodes suivantes 1 Réorienter l antenne ...

Page 61: ...cklist for safety devices and warnings All safety devices are in their designated position are working correctly and are secured properly in place All warning signs are in their designated position Suitable cooking utensils Check the manufacturer s instructions and temperature rating to determine the suitability of individual containers or utensils using each of the cooking functions The following...

Page 62: ...utiliser d articles portant des décorations métalliques Grès faïence porcelaine poterie etc OUI Plateaux métalliques et de feuilles métal liques Contenants métalliques et de feuilles métal liques NON Contenants de plastique Contenants de plastique utilisables dans les deux types de fours OUI Utilisez uniquement des contenants de plastique approuvés par Merrychef Contenants jetables Combustibles pa...

Page 63: ...ore preheating temperatures a choice is displayed Scroll arrows at the bottom of the screen indicate that there are more temperature choices not shown on the screen If necessary use the scroll arrows Then select the temperature required to start preheating the cavity 4 During preheating the display shows the progress as the cavity heats up to the set temperature To stop the cavity heating up touch...

Page 64: ...isplays favourites cooking profile groups and a complete listing of all cooking profiles available Cleaning Temp change Cleaning Temp change allows the cavity temperature to be changed and the appliance to be prepared for cleaning with reminders displayed to assist during the cleaning process Settings Settings are used to control the appliance settings and functions including time and language loa...

Page 65: ...er data for programs and may restrict operator access to some functions Clear screen Clear screen Keyboard Keyboard Spacebar Spacebar Return Return Keyboard scroll Keyboard scroll Enter OK Enter OK Previous screen Previous screen Character length For names of cooking profiles names of cooking profile groups and passwords use 1 20 characters in 2 lines max For stage instructions of individual cooki...

Page 66: ...a USB stick inserted and the USB port must be closed by the cover USB programs IMPORTANT Downloading from a USB memory stick will clear all the existing programs in the memory of the appli ance Check that the key has the correct number code for the programs you want to load into the memory 1 cbr autoupd ate 1 Switch the appliance OFF Open the cover to the USB port on the control panel 2 Plug in th...

Page 67: ... appliance ON The files automatically download from the USB memory stick showing the progress and confirmation screens for the update 4 On completion the appliance displays the start up screen Then the thermometer symbol is displayed Remove the USB memory stick and keep it in a safe place ...

Page 68: ...s the cleaning chemicals and how to handle them and the cleaning instructions It explains the correct procedure to follow when cleaning the microwave combi nation oven Contents This chapter contains the following topics Page Daily cleaning tasks 69 Cleaning chemicals 69 Items required for cleaning 70 Safe working when cleaning 71 Cleaning procedures 73 ...

Page 69: ...oduct Use Merrychef Cleaner Cleaning the cavity and appliance door Merrychef Protector Protecting the cavity and appliance door Common household stainless steel cleaner or hard surface cleaner Caring for the external surfaces of the micro wave combination oven Common household detergent mild on skin alkali free pH neutral and odourless Cleaning components and fittings according to relevant instruc...

Page 70: ... optional NOTICE Never use sharp implements or harsh abrasives on any part of the appliance Do not use tools Do not use caustic cleaners on any part of the appliance or cavity It will cause permanent damage to the catalytic converters REMARQUE Ne pas utiliser d outils pointus ou des abrasifs rudes sur aucune partie du four Ne pas utiliser d outils Ne pas utiliser d agents nettoyeurs caustiques sur...

Page 71: ...the connecting cables Never stretch let alone pull off the connecting cables The appliances must be disconnected from the electrical supply before moving the stacking kit optional accessory The appliances must be left to cool down on the trolley before being moved There must not be any food left in the appliances The appliance door must be closed Protective clothing must be worn if the appliance i...

Page 72: ... Down function to cool the cavity Contact with cleaning chemicals Risk of irritation to skin eyes and respiratory system Direct contact with the cleaning or protective chemicals will irritate the skin eyes and respiratory system Do not inhale the vapours or spray mist from the cleaning and protective chemicals Do not let the cleaning or protective chemicals come into contact with skin eyes or muco...

Page 73: ... UL 73 7 5 Cleaning procedures Cleaning the microwave combination oven This section explains how to clean your microwave combination oven Contents This section contains the following topics Page Cool down procedure before cleaning 74 Cleaning instructions 76 ...

Page 74: ...pecified in Safe working when cleaning on page 71 and follow the instructions given there Purpose With the optional cool down function you can cool down the cavity quickly for cleaning your microwave combination oven sooner Cooling down the cavity 1 In Full Serve mode select the cleaning symbol from the main menu 2 OR In Full or Quick Serve mode select the blue thermometer symbol to disable heatin...

Page 75: ...g process Press the green tick to continue 4 The cooling progress is displayed and takes approximately 20 minutes To reduce the cool down time to about 20 minutes leave the appliance door open slightly during the cooling process 5 Once the cooling process is complete carefully remove the cool down pan from the cavity wearing protective gloves 6 The oven is now ready for cleaning ...

Page 76: ...eaning the oven and oven parts 1 Open the appliance door and remove the cook plate wire rack and any other cooking vessels from the cavity CAUTION Wear protective glasses and protective rubber gloves during the cleaning procedure 2 Wash all removed oven parts in warm soapy water Wash off using a clean cloth and plenty of clean warm water Dry all components using a fresh clean cloth 3 Remove any sp...

Page 77: ... the appliance door NOTICE Do not scrub the door seal or use metallic scourers 6 Wash off all surfaces using a wet clean cloth Dry using a fresh clean cloth or paper towel 7 Replace the cleaned cook plate wire rack Double check that all components are dry before re fitting them 8 Close the appliance door 9 Wipe the outside of the appliance with a damp cloth NOTE Do not use the appliance without a ...

Page 78: ...en tick to confirm that the cavity has been cleaned You can then apply a protective chemical to make cleaning easier the next day optional 2 Spray protective chemical approved by Merrychef onto a clean sponge NOTICE Only apply the protective chemical to a clean appliance 3 Spread the protective chemical lightly onto all internal surfaces of the appliance avoiding the door seal ...

Page 79: ...ll mobile parts into the cavity that had been removed for cleaning 5 Close the appliance door 6 Press the green check mark to confirm application of the protec tive chemical A prompt appears asking to clean the air filter 7 Tilt the faceplate below the appliance door downwards ...

Page 80: ...loth 12 Press the green check mark to confirm cleaning of the air filter The oven switches OFF 13 Switch ON the appliance If the air filter has not been replaced the screen will display a warning Replace the air filter and then press the green tick to continue 14 Preheat the cavity Once reaching the preset operating temperature it will take about 30 minutes to cure the protective chemical The prot...

Page 81: ...d Repair Manual UL 81 8 Technical data Purpose of this chapter This chapter contains the technical data for your microwave combination oven Contents This chapter contains the following topics Page Technical data 82 Dimensional drawings 84 ...

Page 82: ...t High Power version including packaging lbs 155 kg 70 4 High Power version excluding packaging lbs 134 kg 61 0 Standard Power version including packaging lbs 135 kg 61 1 Standard Power version excluding packaging lbs 114 kg 51 7 Safety clearances Rear right left in 0 mm 0 Top for ventilation in 2 mm 50 Electrical connected load ratings High Power version Electrical supply 2 208V 240V 60Hz Connect...

Page 83: ...d power consumption W 3120 4160 Rated current per phase A 15 20 Power output Rated power output convected heat W 1300 2200 Rated power output microwave IEC 705 100 W 1000 Rated power output combination mode convected heat microwave W 1300 1000 2200 1000 Regulatory standards compliance Degree of protection IPX0 Noise emission max 70 dBA Approval marks Electrical safety cULus Hygiene UL EPH NSF ANSI...

Page 84: ...ical data eikon e2s Service and Repair Manual UL 84 8 2 Dimensional drawings eikon e2s Front view door closed Cavity dimensions door closed View from the top door closed View from the right hand side door open ...

Page 85: ...tics Purpose of this chapter This chapter contains information on checking various functions of your microwave combination Contents This chapter contains the following topics Page Checking the condition of your appliance 86 Errors and diagnostics 89 Fault finding 96 ...

Page 86: ...equired refer to the Replacing components section of this manual 4 Complete an Earth Insulation test see Tests section of this manual on the appliance before switching on 5 Check the display for error messages If an error is shown refer to the Diagnostics section of this manual 6 If a firmware update is required follow the instructions under Firmware Updates before contin uing with the service pro...

Page 87: ...t options Touchscreen Calibration 1 Apply continuous light pressure to the screen while switching the appliance on Continue to hold until the progress bar has completed 2 Using a non abrasive pointer such as a ball point pen accurately press the centre of each crosshair displayed on the screen 3 If the crosshair turns red you missed the centre of the crosshair Repeat the procedure ...

Page 88: ...ully 5 Once calibrated the screen will display information about the appliance Functions of the Service Mode 1 Check the Error Log for details of any logged appliance errors 2 Check the Oven Counters to find the usage of components and the controls area temperature within the cabinet 3 Check the operational performance of the main components using Visual View ...

Page 89: ... under Commissioning the appliance before commissioning your appliance for use 9 2 Errors and diagnostics Error messages 1 A description of the type of error is shown Check for a number following ERROR and refer to the error codes Fault Finding section of this manual for more details The serial number of the oven model UI QTS version and SRB version information are also displayed below 2 Clear the...

Page 90: ... 1 Enter settings menu and select the USB symbol The USB screen appears 2 Open the cover of the USB port and insert the USB memory stick into the slot NOTE The USB memory stick may take several seconds to load before the screen will respond 3 Select Upload Files on the USB screen ...

Page 91: ... the green check mark to copy the error log to the USB memory stick The upload progress is shown followed by the upload status 6 Select backspace 3 times to return to the main menu 7 Remove the USB memory stick Error Log 1 Enter Service Mode and select Error Log to display a listing of oven component errors ...

Page 92: ...of failure and range 4 Select backspace to return to the list again to return to the Service Menu Cooking Profile counter 1 Select Oven Counters to display the oven component usage and ambient controls area temperature 2 Details include the number of screen touches filter cycles door cycles total oven power magnetron and heater element power on time and the ambient controls area temperature in the...

Page 93: ...bol to switch on red Select again to increase the level or turn off green 3 Remove the air filter at the front of the oven The colour of the air filter symbol on the display should change from green to red indicating that the magnetic reed switch circuit for the air filter is operating correctly Replace the air filter and the colour should change back to green ...

Page 94: ...er into the cavity and close the oven door Select a magnetron to test the current draw at maximum output this will time out after 30 seconds Dual magnetron model 2000W e2s variant Test the magnetrons individually and together Using heat proof gloves remove the container and close the oven door Individual magnetron test If there is a magnetron error present then first reset the error If during the ...

Page 95: ... become louder 8 Select the heater it increases to maximum temperature and then cycles the convection fan is ON by default Check the cavity temperature and heater element current draw at maximum are correct The current should be between 7 A and 9 A depending on domestic mains voltage 9 Select one and then the second magnetron 2000W e2s variant only and check if they are operating correctly ...

Page 96: ...iefly displays oven information and the cabinet cooling fan is activated After completing a successful logic test the safety relay is energised and the oven preheats or displays a preheat temperature choice Once preheated the oven displays the main menu if in Full Service Mode or a recipe selection if in Quick Service Mode Shutting down sequence When the oven switch is turned OFF the screen displa...

Page 97: ...age until ambient controls area temperature is below 60 C E 104 Magnetron cavity overheat Detects if the cavity and mag netrons are above temperature Cavity and mag netron overheat thermostats Cooling fan failed E103 E106 not triggering Failed SRB Magnetron failure Wiring connection fault Blocked inlet filter Display error message until service call and the magnetron cools down or the cavity stat ...

Page 98: ...at E 113 Magnetron fail on without request Magnetron oper ates without being requested to do so Magnetron current sensed at 1 Amp Triac Diode or relay short cir cuited on SRB Display error message until service call and the magnetron cools down or the cavity stat is reset E 116 Heater off on request No heater current detected when requested Cavity does not reach 100 C in 30 minutes Oven heater ele...

Page 99: ... the door is closed check the Magnetron 230V circuit power supply Error messages the oven stops operating 88 Supply voltage error 10 of rated voltage 101 Magnetron failed on request 102 Heater ON without request 103 Ambient overheat 104 Magnetron cavity overheat trip when oven in idle mode also see E117 105 Supply frequency error 2Hz 106 Cavity reaches 75 C above set point or 25 C at 275 C 107 Com...

Page 100: ...ion on testing single components of your microwave combination oven Contents This chapter contains the following topics Page Safe working when testing components 101 Requirements 104 Testing selected components casing mounted 104 High voltage components casing removed 113 Mains voltage components casing removed 116 ...

Page 101: ...ISK OF ELECTRIC SHOCK For all cord connected appliances GROUNDING INSTRUCTIONS This appliance must be grounded In the event of an electrical short circuit grounding reduces the risk of electric shock by providing an escape wire for the electric current This appliance is equipped with a cord having a grounding wire with a grounding plug The plug must be plugged into an outlet that is properly insta...

Page 102: ...nt sur la mise à la terre ne sont pas comprises ou si un doute existe si oui ou non l appareil est mis à la terre correctement Ne pas utiliser de cordon prolongateur Si le cordon d alimentation est trop court demander à un électricien ou un technicien qualifié d installer une nouvelle prise de courant près de l appareil Moving heavy loads Risk of injury from lifting incorrectly When lifting the ap...

Page 103: ...ug from the wall socket Turn off the isolator switch to disconnect fixed wired appliances and lock off Take protective measures at every power switch to ensure that the power cannot be switched on again Always discharge the high voltage capacitors before working on the appliance using a suitably insulated 10MΩ resistor Make sure that the appliance is de energized Make sure that the electrical conn...

Page 104: ...0 V DC All Merrychef Commercial Combination Microwave Ovens are classified as CLASS 1 for the purpose of testing Should it still be deemed necessary by the customer to perform an Earth Leakage test the following advice should be adhered to Note that not all PATs are capable of just measuring the leakage or allow you to set a pass limit and therefore may not be appropriate for this test HIGH LEAKAG...

Page 105: ...e Appliance Tester in an open area such as the floor away from any persons Perform a Class 1 test in accordance with tester instructions A PASS indicates the oven earthing circuit is functioning cor rectly If a FAIL is indicated i e unit exceeds maximum limit remove the casing of the appliance and check ALL earth connections Then repeat the Class 1 test WARNING Never operate an appliance that has ...

Page 106: ...oad so this test is an approximation only 1 Enter Service Mode For details see Checking the condition of your appliance 2 Select Visual View to check the cavity temperature reading is as close to 0 C as possible 3 Fill a microwave safe container glass or plastic with one litre 1 78 pints of tap water at 20 C 68 F 4 Measure and record the water temperature in the container using a thermometer capab...

Page 107: ... the temperature rise of the water end temperature minus the start temperature The temperature rise should be 14 3 C 25 7 F 10 for the 1000W 1 magnetron variant The temperature rise should be 28 5 C 51 4 F 10 for the 2000W 2 magnetrons variant If the temperature rise is outside these limits check the micro wave circuit and components Replace the magnetron and or high voltage diode board rectifier ...

Page 108: ...eadings are measured on the most sensitive range To prevent false readings hold the probe on the grip provided and move at 2 5 cm second Always hold the probe at right angles to the oven and point of measurement ensuring the probe is reading 50 mm from the test area The leakage should not exceed 5 mW cm 1 Add 275 ml of cold water into a 600 ml microwave safe container 2 Place the 600 ml container ...

Page 109: ...e the water and re select the test to continue 7 Select the red X on the display to stop the test at any time 8 Readings must be below 5 mW cm CAUTION If a level greater than 5 mW cm is observed report this to the Merrychef Service Department immediately Don t use the appliance hereafter 9 Note any leakage that is observed in terms of the level and position on the appliance Keep this information w...

Page 110: ...e appliance is under or over cooking 1 Place the probe of a temperature reader onto a heat sink or a metal plate in the centre of the oven cavity and close the door 2 Select Temperature Control Test from the service mode tests The cavity heats up and cycles at the maximum set point tem perature over 30 minutes 3 Once the appliance is up to maximum temperature check for a stable temperature reading...

Page 111: ...ompensation and enter the password 6 Enter the figure from the temperature reader on the keypad and select OK to calibrate the SRB to the temperature sensor ther mocouple 7 Retest to check that the cavity temperature reading is the same as the oven maximum set point temperature 8 If the temperature reading is stable repeat the Temperature Control Test procedure ...

Page 112: ...nd repeat the test procedure as described above 7 If the temperature is still unstable repeat steps 1 to 3 replace the SRB see Replacing components section repeat step 6 NOTE Reuse the existing PM Personality Module on the new SRB enter serial number on reboot Soak test checking the cavity integrity 1 Place an oven microwave safe container with approx 2 litres of water into the cavity 2 Close the ...

Page 113: ...rents are present at the high voltage capacitor It is very dangerous to work near this part when the oven is on NEVER make any voltage measurements at the high voltage circuits including the magnetron filament 1 Remove all connections from the transformer 2 Using a Digital Multi Meter DMM check the resistance of the windings Results should be as follows 3 Mains winding between tags approx 1 1 Ω 4 ...

Page 114: ...High Voltage Capacitor test Ensure the following requirements have been met before starting the test The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The high voltage capacitors are discharged before commencing work Anti static precautions have been taken The casing of the applian...

Page 115: ...nce has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The high voltage capacitors are discharged before commencing work Anti static precautions have been taken The casing of the appliance has been removed 1 Remove all electric connections from the magnetron 2 Using a megger check for continuity ...

Page 116: ... Inverter Off No supply LED OFF Power On Ready LED flashes ON OFF 1x per second Inverter Running LED ON continuously General Warning LED flashes ON OFF 2x per second Fault Condition LED flashes ON OFF 10x per second Convection fan motor and motor speed controller tests Ensure the following requirements have been met before starting the test The appliance has been disconnected from the power supply...

Page 117: ...ware eikon e2s Service and Repair Manual UL 117 11 Firmware Purpose of this chapter This chapter informs about the correct procedure to check and update the firmware of the appliance Page Firmware Updates 118 ...

Page 118: ... Firmware for QTS SRB updates Recipes for icons Install the SRB update first the QTS update second and any icons third Alternatively if you have the Autoupd ate file present on the USB be aware that all files of your USB will be loaded and overwrite the existing files Save the menu files before uploading files If you have a menu file on your USB memory stick then the menu of the appliance will be ...

Page 119: ... Service and Repair Manual UL 119 6 Select the firmware to install and select the green check mark to confirm 7 The update screen displays the file version and product Select the green check mark to confirm the installation ...

Page 120: ...ith the oven switched OFF open the cover of the USB port and insert the USB memory stick into the slot The USB memory stick should be formatted to FAT with firmware loaded NOTICE Do not remove the USB memory stick during the download sequence as this could corrupt the data transferred from the USB stick 2 Switch ON the oven Tap the top right hand corner of the screen to bypass the preheat stage 3 ...

Page 121: ...Manual UL 121 4 Select the USB symbol 5 Once the USB memory stick has stopped flashing select the Firmware USB symbol 6 The current QTS Quick Touch Screen and SRB Smart Relay Board firmware versions are displayed at the top left of the screen ...

Page 122: ...ware update 6 Select the SRB file with the correct file version number NOTE A tinted band over a file name indicates the file is not valid for your oven 7 Check if the file information shown is correct before selecting OK If not select X and locate the correct file ...

Page 123: ... update status and confirmation screens NOTE Wait until all files have been loaded Do not touch the oven until the end of the downloading process 9 When the download process is complete press the return arrow and select the QTS file and repeat 10 When the QTS download has been completed the oven will reboot and display a flash screen as it updates ...

Page 124: ... A tinted band over a file name indicates the file is not valid for that appliance 14 Check if the file information shown is correct before selecting OK If not select X and locate the correct file 15 The file update progress is displayed At 50 the cooling fan stops operating after 100 various screen displays appear as the software reboots ...

Page 125: ...upt the USB data IMPORTANT Downloading from a USB memory stick will clear all existing programs Only use an empty USB memory stick formatted as FAT16 default or FAT32 Copy the following firmware files to the ROOT directory of the USB memory stick QTS eX XXX VX X XX BIN SRB eX_X_X_XXX BIN VX APP eX CBR Autoupd ATE For update A follow all instructions For update B follow the first two instructions 1...

Page 126: ...e2s Service and Repair Manual UL 126 3 Tap the top right of the screen to bypass the preheat stage 4 Enter the password and select OK to display the settings menu 5 Select the USB symbol 6 Select the Firmware USB symbol ...

Page 127: ... the QTS file with the correct file version number NOTE A tinted band over a file name indicates the file is not valid for that appliance 8 Check the file information shown is correct before selecting the green check mark If not select X and locate the correct file ...

Page 128: ...11 Firmware eikon e2s Service and Repair Manual UL 128 9 The CBR file is checked and the download progress from the USB memory stick is displayed followed by the update status and confirmation screens ...

Page 129: ... Firmware eikon e2s Service and Repair Manual UL 129 10 The QTS SRB and Application Icon files then download auto matically showing the progress status and reboot confirmation screens for each file update ...

Page 130: ...if the file transfer was successful with the following procedure 1 Load the files from the USB memory stick to a computer 2 Open the update UPDATE txt file 3 A firmware update is confirmed below the serial number of the appliance with updated following the QTS SRB firmware Load only the specific files for the stage 3 1 upgrade onto the USB memory stick BTS QTS model type V 003 000 001 SRB model ty...

Page 131: ...erature calibration cooking profiles application icons and the recipe images 1 With a new Personality Module fitted and casing refitted switch on the appliance and tap the screen to hold and check the QTS and SRB versions are the latest release If not execute a firmware update using the latest versions 2 Tap the top right of the screen to bypass the preheat stage 3 Enter the service password and s...

Page 132: ...to the slot NOTE The USB memory stick may take several seconds to load before the screen will respond 6 Once the USB memory stick has stopped flashing select the required USB Recipes symbol 7 Select the application icons file to download NOTE A tinted band over a file name indicates the file is not valid for that appliance ...

Page 133: ...e correct file 9 When completed select menu file to load the cooking profiles Once the cooking profiles are loaded the appliance restarts 10 Enter the date and time settings 11 Enter the serial number of the appliance found on the rating plate at the rear casing 12 Switch the appliance OFF ON 13 Remove the USB memory stick and keep it in a safe place ...

Page 134: ...iew 138 Removing fitting the casing 143 Removing fitting the door assembly 146 Replacing a magnetron 151 Replacing the cooling fan 156 Replacing the QTS Quick Touch Screen assembly 158 Replacing the SRB Smart Relay Board 163 Replacing the touchscreen overlay 165 Adjusting the door microswitches interlocks 167 Replacing the stirrer motor 169 Replacing the convection fan motor 173 Replacing a transf...

Page 135: ...relating to the operating environment of the microwave combination oven on page 23 in the Installation and Operating Manual GROUNDING INSTRUCTIONS IMPROPER USE OF THE GROUNDING PLUG CAN RESULT IN A RISK OF ELECTRIC SHOCK For all cord connected appliances GROUNDING INSTRUCTIONS This appliance must be grounded In the event of an electrical short circuit grounding reduces the risk of electric shock b...

Page 136: ...nt sur la mise à la terre ne sont pas comprises ou si un doute existe si oui ou non l appareil est mis à la terre correctement Ne pas utiliser de cordon prolongateur Si le cordon d alimentation est trop court demander à un électricien ou un technicien qualifié d installer une nouvelle prise de courant près de l appareil Moving heavy loads Risk of injury from lifting incorrectly When lifting the ap...

Page 137: ...t the plug from the wall socket Turn off the isolator switch to disconnect fixed wired appliances and lock off Take protective measures at every power switch to ensure that the power cannot be switched on again Always discharge the high voltage capacitors before working on the appliance using a suitably insulated 10MΩ resistor Make sure that the appliance is de energized Make sure that the electri...

Page 138: ...12 Replacing components eikon e2s Service and Repair Manual UL 138 12 2 Overview View left hand side ...

Page 139: ...12 Replacing components eikon e2s Service and Repair Manual UL 139 View right hand side ...

Page 140: ...12 Replacing components eikon e2s Service and Repair Manual UL 140 View rear side ...

Page 141: ...r of the casing in order to cool the electrical components 14 Convection hot air fan motor speed controller This component controls the speed of the convec tion fan motor depending on specific oven settings 15 Transformer high voltage 2000W e2s variant 2x A high voltage transformer feeds a magnetron 16 Convection hot air fan motor The convection fan motor is controlled by the speed controller and ...

Page 142: ...ive convection fan motor and motor speed controller and the mains power supply 32 Fuses The fuses protect the oven from high voltag es currents 33 Gland power supply cable 34 Equipotential bonding connection CE appliances only This is an electrical connection that ensures that the frames of electrical equipment and any external conductive components are at an equal or practi cally equal potential ...

Page 143: ... been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The high voltage capacitors are discharged before commencing work Anti static precautions have been taken Removing the panels of the casing Overview of all M5 5 hex head flange bolts securing the panels of the casing ...

Page 144: ...nd remove it 2 Removing the side panels Unfasten six M5 5 hex head flange bolts three per side at the back panel of the appliance attaching each side panel to the back panel Slide the left and or right side panel towards the back of the appliance and remove it them 3 Removing the back panel Unfasten four M5 5 hex head flange bolts attaching the back panel to the cooling duct two bolts and bottom p...

Page 145: ...12 Replacing components eikon e2s Service and Repair Manual UL 145 Fitting the panels of the casing Follow the steps in the reverse order to fit the panels of the casing ...

Page 146: ...cted from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The high voltage capacitors are discharged before commencing work Anti static precautions have been taken Removing components of the door assembly 1 Insert one suitable metal pin length 10 mm 0 4 in per door hinge into the corresponding holes marked up in the ima...

Page 147: ...o an angle of approx 30 relative to the ground 3 Remove the door assembly from the oven performing a rotational movement of lifting the door up and pulling it away from the casing 4 Unfasten two M5 5 hex head flange bolts next to the door hinges to remove the cover panel from the door frame ...

Page 148: ... assembly around Slide the cover panel away from the door handle to remove it from the door frame 6 Remove the two thermal insulation pads located between the springs attached to the door hinges and the door handle 7 Unfasten two M8 hex cap screws on each side Detach the door handle ...

Page 149: ...12 Replacing components eikon e2s Service and Repair Manual UL 149 8 Remove all insulation pads mats from the door 9 Unfasten two M8 hex cap screws 10 Remove replace the door hinge units if required ...

Page 150: ...epair Manual UL 150 Fitting the components of the door assembly Follow the steps in the reverse order to reassemble the compo nents of the oven door and to fit it to the oven NOTE Carefully refit the insulation pads mats to their original positions ...

Page 151: ... the cavity and is are fixed to the cooling duct and the cavity roof The 2000W e2s variant comprises two magnetrons located on the left and right hand sides of the cooling duct The cooling duct covers one side of the magnetron where the magnetron is attached to the cavity roof with two screws The image shows a single magnetron 1000W e2s variant ...

Page 152: ...guiding the Pozidriv screwdriver Tools required Hammer or similar tool PZ2 Pozidriv screwdriver M8 hex socket wrench Requirements Check that the following requirements have been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The top left and right panels of the casing of the...

Page 153: ... them upon a piece of tube while pushing out the screws CAUTION Wear personal protective equipment to protect your fingers when using the hammer 2 Comparison of spare magnetrons with right and without left pressed bolts Removing a magnetron 1 Unfasten two Pozidriv screws on the right side of the cooling duct with a long PZ2 Pozidriv screwdriver using the corresponding access holes at the cooling d...

Page 154: ...orresponding access hole at the cooling duct when looking at the back side of the oven NOTE The number of screws on the left side of the cooling duct depends on the number of magnetrons fitted One magnetron 1000W e2s variant one screw Two magnetrons 2000W e2s variant three screws NOTICE When detaching the cooling duct be careful not to damage the exhaust pipe leading into the duct ...

Page 155: ...t any cables leading into the magnetron s Fitting a magnetron Follow the steps in the reverse order to fit a spare magnetron Ensure nothing becomes trapped under the magnetron mounting points e g insulation material while fitting the magnetron This can lead to microwave leakage NOTICE If the electric connections have not been restored properly this may lead to malfunction damage of the oven ...

Page 156: ...nch Requirements Check that the following requirements have been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The top and side panels of the casing of the appliance have been removed The cooling fan speed controller is removed The high voltage capacitors are discharged bef...

Page 157: ...ch securing one arm of the sheet metal bracket which holds the cooling fan Then turn the bracket clockwise 3 Twist and remove the cooling fan via the left hand side of the oven when looking at the oven from the front Fitting the cooling fan Follow the steps in the reverse order to fit the cooling fan NOTICE If the electric connections have not been restored properly this may lead to malfunction da...

Page 158: ...dth of the oven and rests in a tilted position close to the front panel of the oven It is mounted to the frame of the casing Tools required M5 5 hex socket wrench Requirements Check that the following requirements have been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The ...

Page 159: ...ving the QTS assembly 1 Disconnect all cables connecting the QTS assembly to the SRB 2 Remove the top front panel including the touchscreen and QTS assembly from the frame of the casing Unfasten two M5 5 hex head flange bolts fixing the front panel to the sheet metal frame ...

Page 160: ...on e2s Service and Repair Manual UL 160 3 1 Slide the front panel upwards 2 Then carefully pull the front panel away from the sheet metal frame Double check that all cables connecting the QTS assembly to the SRB have been removed ...

Page 161: ...UL 161 4 Unfasten four M5 5 hex head flange bolts to remove the QTS assembly from the front panel 5 Lift out the QTS assembly 6 Remove the PM Personality Module from the QTS and place safely aside NOTICE Do not use tools to remove or refit the Personality Module ...

Page 162: ... connections to the QTS board Fit the PM removed from the old QTS to the new QTS Reason Replacement QTS SRB units come WITHOUT Personality Modules as they store individual settings saved by the user For details see QTS Terminal Locations Circuit diagrams section NOTICE If the electric connections have not been restored properly this may lead to malfunction damage of the oven ...

Page 163: ...ached to the front panel of the oven Tools required M7 hex socket wrench Requirements Check that the following requirements have been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The side and top panels of the casing of the appliance have been removed The high voltage capa...

Page 164: ...ails see SRB Terminal Locations Circuit diagrams section 1 Ensure the thermocouple negative connection white and positive connection green are fitted the correct way round or the oven temperature readings will be wrong 2 Refit the Personality Module PM removed from the old SRB to the new SRB Reason Replacement QTS SRB units come WITHOUT Personality Modules as the PMs store individual settings save...

Page 165: ...t wrench Requirements Check that the following requirements have been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The high voltage capacitors are discharged before commencing work Anti static precautions have been taken ...

Page 166: ...screw underneath the front panel Release the screw using a M5 5 hex socket wrench 2 Slide the touchscreen element to the left and detach it from the frame of the casing NOTICE Mind the cables attached to the QTS assembly Fitting the touchscreen overlay Follow the steps in the reverse order to fit the touchscreen overlay NOTICE If the electric connections have not been restored properly this may le...

Page 167: ... are 3 safety interlock microswitches to prevent microwave emissions escaping when the oven door is opened The primary microswitch SW3 breaks the electrical supply circuit to the transformers The secondary microswitch SW2 breaks the microwave circuit if the primary fails The monitor switch SW1 will short out the microwave circuit blowing the fuse if both primary and secondary interlocks fail IMPOR...

Page 168: ...cers and close the door 6 Slacken the pivot screw 7 Release the adjusting screws and move the backplate until microswitch SW2 just activates Then secure all screws 8 Remove the spacers then open and close the appliance door 5 10 times IMPORTANT Check if the switches operate in the following sequence as microswitch SW3 must switch the load current Closing the door SW1 opens first SW2 closes second ...

Page 169: ...driver Requirements Check that the following requirements have been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The casing of the appliance has been removed The high voltage capacitors are discharged before commencing work Anti static precautions have been taken ...

Page 170: ...er motor 1 Unfasten two M5 5 hex head flange bolts to remove the jet impinger plate from the roof of the cavity NOTE At the rear the jet impinger plate rests in a bracket 2 Remove the jet impinger plate from the cavity 3 Unfasten sixteen 16 M7 hex nuts Be careful not to lose the washers ...

Page 171: ...ket prevents grease laden air from soiling the stirrers and needs to be intact at any time 5 The image shows the 1000W e2s variant equipped with one stirrer stirrer motor The 2000W e2s variant has a second stirrer stirrer motor in the right niche 6 After removing the partition plate the stirrer motor on top of the cavity can be dismounted using a Pozidriv PZ1 screwdriver NOTE The threads at the st...

Page 172: ...everse order to fit the stirrer motor IMPORTANT When refitting the partition plate fasten the screws on opposite corners sides in turns and do NOT proceed stringently clockwise or anti clockwise Tighten the partition plate screws to 2 1 Nm of torque Tighten the jet impinger plate screws to NO more than 1 8 Nm of torque ...

Page 173: ...at the following requirements have been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool All panels of the casing of the appliance have been removed The high voltage capacitors are discharged before commencing work Anti static precautions have been taken ...

Page 174: ...ape covering the insulation mat with a knife to access the screws Unfasten ten M7 hex head flange bolts to remove the plate with the convection fan motor CAUTION Wear personal protective equipment to protect your fingers when using the knife NOTE The exhaust pipe is also connected to the rear plate Be careful not to damage it when lifting out the plate 2 After replacement carefully refit all screw...

Page 175: ...rmers side by side Tools required M8 hex socket wrench Requirements Check that the following requirements have been met The appliance has been disconnected from the power supply and protective measures have been taken to ensure the power cannot be switched on again The appliance is cool The casing of the appliance is removed The high voltage capacitors are discharged before commencing work Anti st...

Page 176: ...e2s Service and Repair Manual UL 176 Removing a transformer high voltage 1 Unplug all electric connections of the transformer s 2 Disconnect the transformer s from the magnetron s by unplug ging the orange cables at the magnetron s ...

Page 177: ...AUTION The transformer is heavy Wear safety shoes to protect your feet from a transformer falling down Fitting a transformer high voltage Follow the steps in the reverse order to fit the high voltage transformer s NOTICE If the electric connections have not been restored properly this may lead to malfunction damage of the oven ...

Page 178: ...f the appliance is removed The high voltage capacitors are discharged before commencing work Anti static precautions have been taken Removing fitting the convection fan motor speed controller 1 Unplug all electric cables connected to the convection fan motor speed controller 2 Unfasten one M5 5 hex head flange bolt to detach the convection fan motor speed controller 3 After replacement of the cool...

Page 179: ...12 Replacing components eikon e2s Service and Repair Manual UL 179 ...

Page 180: ...Manual UL 180 12 15 Overview further components Removable diffuser in the cavity optional The rear air diffuser plate in the cavity is a customer option It prevents large foodstuff from hitting the rear of the cavity Protective earth connections to casing ...

Page 181: ...nual UL 181 Electromagnetic Compatibility EMC Filter s Top one EMC filter unit 1000W e2s variant Bottom two EMC filter units 2000W e2s variant Diode s high voltage Top one high voltage diode 1000W e2s variant Bottom two high voltage diodes 2000W e2s variant ...

Page 182: ...12 Replacing components eikon e2s Service and Repair Manual UL 182 Exhaust pipe The exhaust pipe leads steam from the cavity to the cooling duct and the rear outlet of the oven ...

Page 183: ...temperature in the cavity and prevents the cavity from overheating Measuring is done by a temperature sensor thermocouple which is essentially a wire extending between the cavity thermo stat and the interior of the cavity This temperature sensor wire runs along the left vertical edge of the cavity being attached to the cavity insulation with heat resistant tape Transformer low voltage The low volt...

Page 184: ...on Mains cable entering the interior Cavity high limit The cavity high limit cavity temperature limiter can be accessed via the rear panel on the left hand side of the grille Reset procedure Remove the pictured M5 5 hex head flange bolt Insert a terminal screwdriver or similar into the hole and push in the button to reset After reset refit the M5 5 hex head flange bolt NOTE No live terminals are a...

Page 185: ...13 Circuit boards and diagrams eikon e2s Service and Repair Manual UL 185 13 Circuit boards and diagrams Page SRB QTS circuit boards 186 Circuit diagrams 189 ...

Page 186: ...how voltage outputs from inboard transformer Relay and Triac lit to show that a signal has been sent to energise that component Item Name 1 Cooling fan 2 Convection fan 3 Stirrer 4 5V supply 5 12V supply 6 Heater safety 7 Heater drive 8 P Bus flashes when data is being sent received RUN 1 second flash 9 Oven door 10 Microwave safety relay 11 Microwave 2 drive 12 Microwave 1 drive 13 LED lit to sho...

Page 187: ... 11 X12 C Bus development PC port 12 X11 P C Bus BTS cable 13 X1 24V supply from low voltage transformer 14 X8 cooling fan 15 X17 not used 16 X20 microwave stirrers 17 X9 mains output convection fan controller 18 X103 1 mains output to low voltage transformer 19 X103 mains input live and neutral 20 X2 1 mains input live for heaters 21 X2 2 mains output live to heaters 22 X102a mains input neutral ...

Page 188: ...pply from the SRB P Bus irregular flashing indicating data communication with SRB C Bus lit to show data being loaded from the Personality Module PM onto the QTS LD5 lit to show that a USB memory stick is fitted QTS Terminal Locations Item Name 1 LD5 2 Power Run P Bus C Bus 3 X6 speaker 4 X5 USB socket 5 X4 communications to SRB 6 X11 screen backlight 7 X13 touch pad 8 X9 display screen PCB ...

Page 189: ...13 Circuit boards and diagrams eikon e2s Service and Repair Manual UL 189 13 2 Circuit diagrams e2s wiring diagram 60Hz 208 240V ...

Page 190: ...13 Circuit boards and diagrams eikon e2s Service and Repair Manual UL 190 ...

Page 191: ...e time limit will cause a test failure and the Recommission Test will have to be restarted 1 Select Recommission Test from the Service Mode oven tests and follow the on screen instructions to perform the tests Do not select the red X unless you want to stop the test 2 After a test has successfully passed select the green check mark to continue 3 When all the tests have been successfully performed ...

Page 192: ... mechanically sound 5 The door activates all of the door interlock switches and in the correct order 6 The door operation is smooth and the arms run freely in the slots 7 The temperature sensor thermocouple is correctly connected to the SRB 8 The casing is securely refitted with no trapped wires Before finishing a service call recheck the following points 9 Run the recommission tests to ensure the...

Page 193: ...Microwave Combination Oven Merrychef eikon e2s Part Number 32Z3936 Preliminary Version 07 2015 2015 Manitowoc Foodservice Inc except where explicitly stated otherwise All rights reserved ...

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