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MN-35949

•

Rev 07

•

01/20

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Combitherm® CT PROformance™ and CT Classic™ Series Technical Service Manual

•

Troubleshooting

PROformance, Gas: No Convection Heat

Is the convection fan motor spinning?

See “Convection Motor Is Not Spinning”.

Yes

Is the N6 oven temperature probe below the set point?

The convection element contactors will not be energized until

the N6 oven temperature probe is below the set point.

Yes

Is the burner igniting?

See “No Combustion On A Call For Heat”.

Yes

Appliance is heating properly.

Содержание COMBITHERM CTP6-10e

Страница 1: ...ould result in property damage severe injury or death Read and understand the installation operating and maintenance instructions thoroughly before installing servicing or operating this equipment CTC6 10E CTC10 10E CTC7 20E CTC10 20E CTC20 10E CTC20 20E CTC6 10G CTC10 10G CTC7 20G CTC10 20G CTC20 10G CTC20 20G CTP6 10E CTP10 10E CTP7 20E CTP10 20E CTP20 10E CTP20 20E CTP6 10G CTP10 10G CTP7 20G C...

Страница 2: ... telephone outside the property and immediately contact your gas supplier If unable to contact your gas supplier contact the fire department Please post the following instructions in a prominent location in the event the user smells gas Control Type Boiler Free Models Steam Generator Models CTP CTC CT PROformance with PROtouch control CT Classic with Classic manual control 6 10E 6 10G 10 10E 10 10...

Страница 3: ...ce For Product Specs Visit https www alto shaam com en resource library to download spec sheets for all Alto Shaam products For the Latest Software Updates Download the latest version of appliance firmware and recipe management software at https www alto shaam com en software download center For Genuine Alto Shaam OEM Parts in Your Area Visit https www alto shaam com en technical service and use t...

Страница 4: ...4 MN 35949 Rev 07 01 20 Combitherm CT PROformance and CT Classic Series Technical Service Manual ...

Страница 5: ...ing Classic Controlled Applicances 53 Error Codes 54 Touch Motor Control Error Codes 61 Troubleshooting 62 PROformance Appliance Dead No Display or Operation 62 PROformance Electric Boiler Free No Steam Production Steam at 212 F 100 C 63 PROformance Electric Boiler Free No Steam Production Steam Below 212 F 100 C 64 PROformance Electric No Convection Heat 65 PROformance Convection Motor is Not Spi...

Страница 6: ...so receive regular safety instructions Any troubleshooting guides component views and parts lists included in this manual are for general reference only and are intended for use by qualified and trained technicians This manual should be considered a permanent part of this appliance This manual and all supplied instructions diagrams schematics parts lists notices and labels must remain with the app...

Страница 7: ...age or serious injury Be extremely careful when moving appliances because the food trays may contain hot fluids that may spill causing serious injury Always open the appliance door very slowly Escaping hot vapors or steam can cause serious injury or death If the gas appliance is installed under an exhaust hood the hood must be switched On when the appliance is in use to avoid the build up of combu...

Страница 8: ... property damage Do not steam clean hose down or flood the interior or exterior with water or liquid solution of any kind Do not use water jet to clean Failure to observe this precaution will void the warranty WARNING To prevent SERIOUS PERSONAL INJURY or PROPERTY DAMAGE DO NOT handle pans containing liquid or semiliquid products positioned above the eye level of the operator Such products may sca...

Страница 9: ... icon each time it appears on screen The icon appears in all four corners then the center of the screen NOTE If the controller software has not been updated to the current version 11 16 update the calibration stops when this step is complete Download the current controller software from the Alto Shaam website and install it 2 The verification screen 5 displays Touch all five target icons The icons...

Страница 10: ...sistance with these special circumstances Remove the cover of the USB port on the oven Insert the USB drive If the USB drive is not recognized by the Combitherm a question mark will appear on screen Try again with another flash drive device or call Alto Shaam Service When the data has made a successful transfer to the USB drive the screen will change Touch the green check mark icon to complete the...

Страница 11: ...oad audit trail info to USB stick Upload odometer info to USB stick Return to previous screen Upload Download Screen Upload Download Settings Service Mode password protected Utility Screen Return to home screen Software Version Return to previous screen Professional Cooking Mode Cookbook with Saved Recipes Utilities Cleaning Sleep Mode Information Call outs The PROtouch control plays an important ...

Страница 12: ...dvance to next setting screen Return to previous setting screen When a setting has been selected the graphic will be vibrant in color while the alternate choice will appear faded and gray In the illustration above Fahrenheit factory default setting handle LED on recipe display with text and recipes are not locked have been chosen Language Choices Language choices available English French German Ko...

Страница 13: ...ler De Liming Return to previous screen Preventative Maintenance Screen Ventless Hood Filter Replacement Utilities Return to home screen Increase or decrease alarm setting to match your preferred timelines Press item to edit After the task has been completed set elapsed time to 0 to begin countdown process again Return to previous screen Preventative Maintenance Editing Utilities Return to home sc...

Страница 14: ...e Retherm Mode Cool Down Return to previous screen Return to Home Page Enter Chosen Cooking Mode Chosen Entry Field Allowable Temperature Range Entry Keypad Return to previous screen NOTE When a cooking mode has been selected it will appear darker blue When the cooking mode is calling for heat it will appear red When the cooking mode is calling for moisture it will appear light blue In the illustr...

Страница 15: ...on appears during operation Reduced Power Level Multiple Fan Speeds The PROtouch control includes five different fan speeds The reduced fan speed function is useful for flow sensitive products such as souﬄés and meringues or any products affected by a high velocity of air movement NOTE Fan speed choices are based upon the power level you have chosen Chosen Cooking Mode Chosen Temperature Return to...

Страница 16: ...tart preheating Preheat Cool Down Return to previous screen Cooldown Feature The cooldown feature provides the operator with the ability to lower the temperature of the oven compartment at an accelerated pace This function is useful when it is necessary to immediately change from a high temperature cooking function to a lower temperature function or to the steam program This function is also usefu...

Страница 17: ...available The percentage level chosen will appear on the icon In the illustration at right 72 is shown Rapid Cool available on boiler free models only This function when used with a program rapidly removes heat from the oven cavity Swiftly move from a high cooking temperature to a lower temperature without overcooking your food Rest This step allows you to pause the oven during a program The rest ...

Страница 18: ...nual Operation CTP CT PROformance Factory Default Settings Cooking Mode Oven Temperature Core Temperature Cooking Time Steam 212 F 100 C 160 F 70 C 25 minutes Combination Steam 350 F 175C 160 F 70 C 70 minutes Convection 350 F 175C 160 F 70 C 30 minutes Retherm 275 F 135 C 160 F 70 C 5 minutes ...

Страница 19: ...n desired time or set continuous time by touching Touch the green Check Mark icon to confirm change To Cook by Product Core Temperature Touch the area to the right of the probe icon Type in desired temperature Touch the green Check Mark icon to confirm change Insert probe into product Set available auxiliary functions as desired such as energy level fan speed multi shelf timer etc Touch the Start ...

Страница 20: ...Touch the area to the right of the time icon Type in desired time or set continuous time by touching Touch the green Check Mark icon to confirm change To Cook by Product Core Temperature Touch the area to the right of the Probe icon Type in desired temperature Touch the green Check Mark icon to confirm change Insert probe into product Set available auxiliary functions as desired such as energy lev...

Страница 21: ...e green check mark key to confirm change To Cook by Product Core Temperature Touch the area to the right of the Probe icon Type in desired temperature Touch the green check mark key to confirm change Insert probe into product Set available auxiliary functions as desired such as energy level fan speed multi shelf timer steam injection etc Touch the Start icon to begin cooking in the Steam mode The ...

Страница 22: ...ure Touch the green Check Mark icon to confirm change Insert probe into product Set available auxiliary functions as desired such as energy level fan speed multi shelf timer steam injection etc Touch the Start icon to begin cooking in Steam mode The cavity set temperature will appear in the display If cooking or retherming by probe the actual internal product temperature will appear next to the PR...

Страница 23: ...rt icon to begin cooking The actual internal product temperature will appear next to the probe icon during operation To change the set value for core temperature touch the temperature next to the probe icon and make changes as required Touch steam Injection at Any Time During Cooking Steam will inject into the cavity as long as the icon is touched When the operator set internal temperature has bee...

Страница 24: ... flavor should remain in the oven after cooking has been completed Do not open the oven door Set the oven in the Low Temperature Steam Mode at 140 to 160 F 60 to 71 C and allow the product to remain in the oven for a period of one hour If you would like assistance you are invited to contact an Alto Shaam corporate chef for recommendations The CT PROformance CombiSmoker can be operated without usin...

Страница 25: ...me Touch the area to the right of the time icon Type in desired time Touch the green check mark key to confirm change To Activate CombiSmoke Touch auxiliary function smoking icon Touch the Start icon to begin smoking CAUTION To prevent personal injury or property damage Always use hand protection when operating this appliance to avoid burns Metal parts of this equipment become extremely hot when i...

Страница 26: ...pecial functions For example If the recipe requires a reminder to open the door at the end of the segment touch the Door icon If the recipe requires a rest period touch the Rest icon If the recipe requires rapid remomal of heat touch the Rapid Cool icon 4 If the recipe is complete go to step 6 If the recipe calls for additional segments touch the Append icon 5 Enter the desired cooking mode cookin...

Страница 27: ...eached before loading food into the oven Touch the Cookbook icon Locate food item program by scrolling through pages using arrows or Look Up icon Touch preprogrammed food item icon Oven begins operating automatically Arrow key Look up key Arrow key Cookbook with Saved Recipes Cleaning Saved Recipe Recipe Utility Recipe Search Recipe Favorite To stop cooking program at any time touch the red Stop i...

Страница 28: ...dd next step Change the previous step Insert a step Edit as necessary When there are no further changes to be made touch the Save icon Enter the name of the recipe if it is to be changed Touch the green check mark key to confirm change To Delete Saved Recipes Touch Recipe Utility icon located at the bottom of the recipe page The recipe utility screen is bright red to indicate that the user is now ...

Страница 29: ... you to enter in a name for the recipe folder Touch the green check mark to confirm the folder name Continue to add recipe folders as necessary Touch the recipe utility icon to add programmed recipes to the folder Touch the folder icon on the red background Touch the named folder icon to reveal the programmed recipe choices available Touch each of the programmed recipes to be added to the folder A...

Страница 30: ...ouch the icon of the recipe to be marked A gold star will appear at the top left of the recipe icon All favorites can be viewed when you touch the gold star while viewing the list of saved recipes To Lock Saved Recipes Touch the lock recipe icon Touch a single icon of the recipe or a group of icons to be locked A red lock will appear at the top right of the recipe icon Saved Recipe Recipe Utility ...

Страница 31: ...retained indefinitely until the information is downloaded Once downloaded the information is removed from the ovens memory Best practice would be to download the information every 30 days to a USB drive This information can then be copied to your computer The file format is text txt CAUTION The Combi Oven USB port is not recommended for use with personal handheld devices To Access the Data Collect...

Страница 32: ...e Combitherm oven a question mark will appear on screen Try again with another USB drive or call Alto Shaam Service When the data has made a successful transfer to the USB drive the screen will change See below The download process will automatically create a folder on the USB drive titled HACCP Each text file contains cooking program specifics and each function the oven performed Touch the green ...

Страница 33: ... to consider using the Convection mode on a more limited basis Oven Cool Down Process Cooking process must be inactive Press Cool Down button until LED lights LED remains ON while in Cool Down mode Press Decrease Value or Increase Value to adjust cool down temperature Cook temperature display area is used to display cool down temperature Display will show last valid cool down temperature Cool down...

Страница 34: ... 5 to 10 seconds to initiate the power shut down sequence to the oven The oven will not shut down during a cooking cycle NOTICE In the event of a power failure the oven will not operate CAUTION Accumulations on the main burners of gas appliances can result in firing out of normal sequence This delayed ignition creates an alarmingly loud sound If your appliance makes an especially loud noise when s...

Страница 35: ...tton adjust the temperature with the Arrow buttons 4 Press the Cook Time button adjust the time with the Arrow buttons 5 Press the Fan Speed button to choose High Speed or Low Speed 6 Load food into the appliance 7 Press the Start Stop button 160 F 00 00 Steam 160 F 00 00 Combi 160 F 00 00 Convection 160 F 00 00 Steam 160 F 00 00 Combi 160 F 00 00 Convection 160 F 00 00 160 F 00 00 160 F 00 00 160...

Страница 36: ... hood fan when the filter is reinstalled CombiHood Plus Charcoal Filter with paper housing Class II FI 25866 3 CombiHood Plus Charcoal Filter with metal housing Class I required for New York City and Los Angeles FI 36620 The charcoal filter should be inspected once a month for contaminants Replacement must be made at a minimum of three month intervals more often if heavy contaminants are visible o...

Страница 37: ...e Collection Hose Assembly from the back of the unit Remove collection container fill cap photo C Screw Grease Collection Hose Assembly on to collection container until snug Turn ball valve handle to the ON position If this auxiliary function has been chosen while setting your cooking mode the automatic grease collection system is electronically activated during the cooking process u s patent 8 99...

Страница 38: ...RNING To prevent SERIOUS INJURY or DEATH NEVER operate this appliance in a cleaning mode without the liquid cleaner connected with a kink in the cleaning hose line or with an empty liquid cleaner container Failure to do so may result in poor oven cleaning grease and or carbon accumulating inside the oven cavity and increased risk of fire WARNING ALWAYS wear protective eye wear and rubber gloves wh...

Страница 39: ...traint to prevent excessive tension from being placed on the connector WARNING ELECTRIC SHOCK HAZARD To prevent SERIOUS INJURY or DEATH your appliance must be secured to building structure to prevent unintended movement Any appliance that includes a set of casters must be installed with a tether Adequate means must be provided to limit the movement of this appliance without depending on or transmi...

Страница 40: ...ve gloves protective clothing eye protection face protection Use only outdoors or in a well ventilated area Avoid release to the environment Store in a locked and well ventilated place Keep container tightly closed Dispose of contents container to an approved waste disposal plant First Aid Immediately call a POISON CENTER or doctor physician Specific treatment See section 4 on the SDS IF IN EYES R...

Страница 41: ...ket clean this item daily The acids and related compounds found in fat particularly chicken fat will weaken the composition of the gasket unless cleaned on a daily basis Wipe with a hot soapy cloth To additionally protect gasket life allow oven door to remain slightly open at the end of the production day An open door will relieve the pressure on the door gasket Routinely clean door hinges Open ov...

Страница 42: ...ty Flip the tabs or loosen the thumb screws on the fan panel to the open position and swing the fan guard cover plate toward the back of the oven Inspect the heat exchanger on gas models for signs of grease and or carbon buildup scale buildup and any signs of major deformation Refer to images A and B Inspect that the flue pipe seal is tight and intact Refer to image C Inspect the convection elemen...

Страница 43: ...____ Daily Inspection Checklist Inspect and clean Monday Tuesday Wednesday Thursday Friday Saturday Sunday Product probe thermometer Door gasket inner door seal Inner door glass Front drip tray Screen and overlay inspect for cracks peeling moisture etc Execute automatic wash cycle with approved cleaning chemical ONLY Employee initials Component Malfunction and Replacement List details of the failu...

Страница 44: ...ease carbon buildup Inspect Loosen thumb screws to inspect behind the fan panel inside the oven cavity for signs of scale buildup Inspect The heat exchanger for any signs of major deformation If yes immediately remove from service and take corrective action steps Inspect The heat exchanger for any loose disconnected pipes or flanges If yes immediately remove from service and take corrective action...

Страница 45: ..._______________ Monthly Inspection Checklist Inspect Test Proper draining of the oven cavity Inspect All drain lines for leaks or clogs EB Descale the steam generator Inspect Oven cavity for any signs of scale buildup Descale the oven interior Inspect ventless hood paper filter replace as needed Test ventless hood drain for proper drainage and signs of leaking Employee initials Component Malfuncti...

Страница 46: ...ing valve hose Inspect Low pressure relief valve hose E Inspect Convection element seal from the electrical compartment G Inspect Gas heat exchanger seal from the electrical compartment Inspect N6 oven temperature probe seal EB Descale the steam generator EB Remove Inspect Steam generator elements Inspect Hand shower hose Inspect Hand shower handle Inspect Product probe Inspect Water injection tub...

Страница 47: ... cavity ceiling flange flange gasket ESG models only G Tighten Burner flange bolts G Tighten Igniter flange bolts Inspect Heat exchanger weep holes to ensure they are free of obstructions if the hole is obstructed immediately remove oven from service and replace the heat exchanger Not applicable to CTP CTC models E Inspect Convection elements for signs of cracking deformation or damage Replace Ove...

Страница 48: ...ry Note the software version update if not current Record Water pressure static dynamic Record Line voltage across all lines Record Line voltage to ground on each line Record Amperage across all three legs when heating Function test all components list components For ovens shipped to New Zealand or Australia inspect the backflow preventer check valve per AS NZ3500 1 and AS NZ3500 2 Component Failu...

Страница 49: ...Failure to observe this precaution will void the warranty Always use the proper cleaning agent at the manufacturer s recommended strength Contact your local cleaning supplier for product recommendations Cleaning Materials Cleaning can usually be accomplished with the proper cleaning agent and a soft clean cloth When more aggressive methods are needed use a non abrasive scouring pad on diﬃcult area...

Страница 50: ... clean lint free cloth and wipe with the grain of the stainless steel Cleaning the Probe 1 Remove all food debris from the probe between loads and at the end of each production shift Wipe the entire probe probe cable assembly probe prongs and probe holding bracket with a clean cloth and warm detergent solution 2 Remove detergent by wiping the probe cable probe prongs and bracket with a cloth and c...

Страница 51: ...fered rinse 20 minutes light 30 minutes normal 1 hour 20 minutes heavy duty 2 hours 6 minutes and heavy duty PLUS 3 hours 30 minutes cleaning CombiClean 18 gram CombiTabs CE 36354 or Combitherm liquid spray cleaner CE 24750 may be used Side racks and shelves may remain inside oven during cleaning Remove the optional Grill Grate from the oven interior and wash separately in hot soapy water to prese...

Страница 52: ...able for the cleaning cycle Steps 1 Remove the optional grill grate from the oven interior and wash separately in hot soapy water to preserve the special non stick coating 2 Remove the smoker tray 3 Remove all solid waste from the drain screen and oven interior 4 Touch the cleaning icon on the home screen The cleaning screen a displays If the cavity temperature is above 150 F 66 C the Oven Too Hot...

Страница 53: ...a will display RIN Cook time display area will display TO CLEAN THE OVEN Press the Cleaning key Insert appropriate number of CombiClean tabs as directed by the LED Screen CLn4 appears The 4 refers to the number of cleaning tablets that are to be inserted in the cavity drain User may add one additional tablet for particularly dirty ovens Close the oven door and press the Start Stop key If oven is t...

Страница 54: ...rive is defective E03 Fan Motor Error Fan motor does not spin after 60 seconds detected by the Hall Sensor Error 03 does not appear if error E53 is detected first Check wiring to all components listed below If LED on motor control flashes see error codes for motor control Motor or fan wheel locked Hall sensor does not detect motor rotation Motor Thermo Temperature protection Fan wheel damaged E04 ...

Страница 55: ...ective B3 condensor probe wires connected backwards Single water solenoid valve defective Y2 Relay board high voltage defective E20 B11 Core Temperature Probe Single Point Fault Single point core temperature probe defective or disconnected Clean probe receptacle pins with sand paper B11 Single Point Core Temperature probe with quick connect defective B11 Single Point Core Temperature probe wires w...

Страница 56: ...high voltage defective E40 B3 Fault B3 probe shorted to ground Defective or miswired probe E41 B4 Fault B4 probe shorted to ground Defective or miswired probe E42 B5 Fault B5 probe shorted to ground Defective or miswired probe E43 N6 Fault N6 probe shorted to ground Defective or miswired probe E44 N8 Fault N8 probe shorted to ground Defective or miswired probe E45 B10 Fault B10 probe shorted to gr...

Страница 57: ...mpts to clear this error the error appears a third time remove the oven from service and immediately contact an Alto Shaam authorized service provider Reset output from Ignition Module is ON Hot surface ignitor not functioning No gas supply Flame sensor not functioning Faulty ignition control E90 Lower Gas Combustion Blower Not at Speed Speed is too slow Power supply cable is not connected to blow...

Страница 58: ...ng Option board is not communicating with CB Check option board CAN connection at CB and OB Defective OB Defective CB E105 No or Low Water Pressure Water pressure switch not activated Water supply not connected Water supply is shut off Water supply to unit blocked or obstructed Faulty or miswired pressure switch E106 Boiler Drain Pump Fault Hall effect or rotational sensor is not sending a signal ...

Страница 59: ... VFD voltage does not correspond to jumper settings VFD voltage jumper is not correct Possible VFD failure E220 Lower VFD Under Voltage Lower VFD has detected an under voltage situation Possible Lower VFD failure E221 Lower VFD Over Voltage Lower VFD has detected an over voltage situation Possible Lower VFD failure E222 Lower VFD Overheating Lower VFD has detected an overheat situation Unit has ex...

Страница 60: ... E223 Lower Motor Over Current Lower Motor over current detected Possible Lower VFD failure E224 Lower VFD Current Peak Lower VFD current peak detected Possible Lower VFD failure E225 Lower VFD EEPROM Error Lower VFD EEPROM Error detected Possible Lower VFD failure E226 Lower VFD Over Current Lower VFD over current detected Possible Lower VFD failure E227 Lower VFD Short Circuit Lower VFD short ci...

Страница 61: ...ce with 3 flashes per period Temperature sensor in the power unit is more than 199 F 93 C Current Peak LED flashing sequence with 4 flashes per period Blocked motor detected by current peak monitoring from 900 rpm rotating field Overcurrent LED flashing sequence with 5 flashes per period Intermediate circuit current exceeds 4 0 A Short circuit LED flashing sequence with 6 flashes per period Releas...

Страница 62: ...supply terminal L and between terminal block terminal 27 1 and power supply terminal N Yes Is there 12 VDC output from the power supply No Replace faulty power supply Yes Is there 12 VDC across the Control Board CB terminal X07 pins 1 4 No Repair wiring between power supply and the Control Board CB terminal X07 Yes Is there 12 VDC across Interface Board IB terminal X07 pins 1 4 No Repair the wirin...

Страница 63: ...erminal 11 and then jumped over to A2 on K44 Yes Is there line voltage being supplied to terminals 2 4 6 on the K41 K44 contactors No Repair the wiring issue between the main terminal blocks 1 1 6 1 11 1 and the K41 K44 contactors Yes Is there line voltage across terminals 1 3 5 on the K41 K44 contactors No Replace faulty contactor s Yes Is there voltage across the element loops at the convection ...

Страница 64: ...it is supplied to K45 from the N7 high limit terminal 11 and then jumped over to A2 on the K22 Yes Is line voltage being supplied to terminals 2 4 6 on the K41 K44 contactors No Repair the wiring issue between main terminal blocks 1 1 6 1 11 1 and the K41 K44 contactors Yes Is there line voltage across terminals 1 3 5 on the K41 K44 contactors No Replace faulty contactor s Yes Is there voltage acr...

Страница 65: ...ch leg is missing and correct A1 is L1 and it is supplied to the K41 contactor from the Control Board CB terminal X02 pin 1 A1 is L1 and it is supplied to the K44 contactor from the CB terminal X02 pin 2 A2 is L2 and it is supplied to K45 from the N7 high limit terminal 11 and then jumped over to A2 on the K44 Reset High Limit if tripped Yes Is there line voltage being supplied to terminals 2 4 6 ...

Страница 66: ...D S600 terminal and the Control Board CB terminal X16 No Repair the connection and retest Yes Is there continuity from end to end on all CAN cable wires No Replace the faulty CAN cable and retest Yes Reconnect the cable making a good electrical connection Does the problem persist No The appliance should operate properly Yes When running a cook mode does the fan start to spin No Replace the faulty ...

Страница 67: ...he cooking program No Activate grease collection in the program and retest Yes Is the grease collection pump being energized on its timed cycle No Determine which leg of the power is missing and correct A1 is L1 being switched from Control Board CB terminal X02 which is supplied by Option Board OB terminal X02 pin 1 A2 is L2 supplied by CB terminal X02 pin 3 which is supplied from OB terminal X02 ...

Страница 68: ...g and correct A1 is L1 supplied from the Option Board OB terminal X01 pin 6 A2 is L2 supplied from the Terminal block TB 45 pin 6 Yes Is the P Pump running No Replace the faulty liquid cleaning injection pump Yes Is the liquid cleaning pump hose connected to a chemical jug No Connect the hose to the chemical jug and retest Yes Is there chemical inside the chemical jug No Replace the chemical jug a...

Страница 69: ...1 supplied from the Option Board OB X01 pin 2 Terminal 12 of the smoke relay is L2 supplied from the terminal block 45 pin 6 Yes Is L2 being supplied to terminal 12 on the smoke relay No Repair the wiring issue between terminal 12 on the smoke relay and the terminal block 45 pin 5 Yes Is L2 being supplied to smoke relay pin 8 No Replace the faulty smoke relay Yes Is there line voltage across the s...

Страница 70: ...ply turned on No Turn on the untreated water supply line Yes Is there line voltage across the Y2 solenoid No Determine which leg is missing and correct A1 is L1 supplied from the Control Board CB terminal X04 pin 1 A1 is L2 supplied from the terminal block 27 17 Yes Is the Y2 solenoid opening No Replace the faulty solenoid Yes Is there water at the condensate cooling injection port No Repair or re...

Страница 71: ...supplied from terminal block 27 17 Yes Is the Y3 solenoid opening No Replace the faulty solenoid Yes Is there water at the rinse water flow control valve No Repair the hose between the Y3 solenoid and rinse flow control valve Yes Is the rinse flow control valve clean of debris No Clean or replace the rinse flow control valve Yes Is water at the injection pipe of the appliance No Clean or repair wa...

Страница 72: ...unning No Replace the faulty cleaning pump Yes Is there cleaning water at the pump inlet No Make sure the condensate pan clean out hose is unplugged and that the Y2 cooling water solenoid is operating properly Yes Is there cleaning water at the water manifold inlet from the Y4 pump No Inspect or replace the hose between Y4 cleaning pump and the water manifold If the hose is okay replace the faulty...

Страница 73: ...id Yes Is the generator filling with water It should take approximately 45 seconds to satisfy the B2 sensing probe No Check for an obstruction or leak between the Y1 solenoid and the steam generator Also check if the water supply is turned off or disconnected or check for a plugged filter cartridge Yes Is the B2 water level probe satisfied If not water should be exiting the steam exit port inside ...

Страница 74: ...ment contactor from Control Board CB terminal X01 pin 2 A1 is L1 supplied from the K1 boiler element contactor A1 to the K2 contactor A1 A2 is L2 supplied from the N9 boiler high limit terminal 12 reset the N9 boiler high limit if it is tripped to the K2 contactor and then jumped to K1 boiler element contactor A2 Yes Is there line voltage across terminals 1 3 5 of the K1 and K2 boiler element cont...

Страница 75: ...ment contactor from Control Board CB terminal X01 pin 2 A1 is L1 supplied from the K1 boiler element contactor A1 to the K2 contactor A1 A2 is L2 supplied from the N9 boiler high limit terminal 12 reset the N9 boiler high limit if it is tripped to the K2 contactor and then jumped to K1 boiler element contactor A2 Yes Is there line voltage across terminals 1 3 5 of the K1 and K2 boiler element cont...

Страница 76: ...s Is there voltage across L N at the power supply No Inspect and repair the wiring between terminal block 33 3 and the power supply terminal L and between the terminal block 27 1 and the power supply terminal N Yes Is there 12 VDC output from the power supply No Replace the faulty power supply Yes Is there 12 VDC across Control Board CB terminal X07 pins 1 4 No Repair the wiring between the power ...

Страница 77: ...t Yes Is there voltage across L N at the power supply No Inspect and repair the wiring between terminal block 33 3 and the power supply terminal L and between the terminal block 27 1 and the power supply terminal N Yes Is there 12 VDC output from the power supply No Replace the faulty power supply Yes Is there 12 VDC across Control Board CB terminal X07 pins 1 4 No Repair the wiring between the po...

Страница 78: ...t if it is tripped Yes Is there line voltage being supplied to terminals 2 4 6 on the K41 K44 contactors No Repair the wiring issue between the main terminal blocks 1 1 6 1 11 1 and the K41 contactors Yes Is there line voltage across terminals 1 3 5 on the K41 contactor No Replace the faulty contactor s Yes Is there voltage across element loops at the convection elements No Repair the wiring betwe...

Страница 79: ...rgized A2 is L2 supplied from K50 A2 which is supplied terminal block TB 27 19 Yes Is the K51 contactor closing No Replace the faulty contactor Yes Is there line voltage across terminals 1 3 5 on the K51 contactor No Test for blown F4 F6 F7 fuse s and or repair the wiring issue between the fuses K50 or K51 contactors Yes Is there line voltage across terminals 2 4 6 on the K51 contactor No Replace ...

Страница 80: ...2 is L2 supplied from terminal block TB 27 19 Yes Is the K50 contactor closing No Replace the faulty contactor Yes Is there line voltage across terminals 1 3 5 on the K50 contactor No Test for blown F4 F6 F7 fuse s and or repair the wiring issue between fuses and K50 Yes Is there line voltage across terminals 2 4 6 on the K50 contactor No Replace the faulty contactor Yes Is there line voltage acro...

Страница 81: ...rgized A2 is L2 supplied from K50 A2 which is supplied terminal block TB 27 19 Yes Is the K51 contactor closing No Replace the faulty contactor Yes Is there line voltage across terminals 1 3 5 on the K51 contactor No Test for blown F4 F6 F7 fuse s and or repair the wiring issue between the fuses K50 or K51 contactors Yes Is there line voltage across terminals 2 4 6 on the K51 contactor No Replace ...

Страница 82: ...ion blower No Test the speed cable for continuity at each wire Replace and or repair as needed Yes Is the combustion blower running No Make sure the combustion blower motor is free of obstruction Replace the faulty motor as needed Yes Is the hall effect sensor of the combustion blower sensing motor rotation on white black wires on the speed cable No Test the hall effect sensor wires for continuity...

Страница 83: ...he burner igniting Measure the micro amps in series with the ignition module and the flame sensor No Inspect the burner Adjust tune of burner to achieve combustion per Alto Shaam specific tuning instruction Yes Is the flame signal above 0 5uA being sensed No Inspect the flame sensor and the flame sensor wiring by taking a resistance reading from the flame sensing tip to the end of the connector Ye...

Страница 84: ... 9 J5 9 10 J5 10 11 J5 11 12 J5 12 13 J5 13 14 J5 14 15 J5 15 16 J5 16 17 J5 17 18 J5 18 External Reset switch input NC Flame on open collector High Limit switch input HL NC NC NC NC NC NC Supply 24V High Limit switch supply 24V Supply 6V GND GND External Reset switch GND GND GND INPUT HSI OUTPUT Timings Value Waiting time 0 s adjustable Glowing time 21 s see NOTE 5 s Safety time 2 Number of ignit...

Страница 85: ...board If all connections are good and seated properly replace the conversion board Yes Start a demand for heat Measure AC voltage between pins 4 and 10 of connector J4 on the conversion board Is AC voltage present No Measure AC voltage at the control board connector X01 pin 1 If voltage is present measure voltage at the control board connector X02 pin 1 or 2 floor ovens while in a call for heat If...

Страница 86: ...ystems No If the gas valve does not open this could be an ignition module issue or gas valve Replace the ignition module if the problem continues replace the gas valve NOTE If the gas valves opens but the pressure drops below 5 5 wc natural gas or 9 wc propane this is a supply gas issue Yes Measure the flame sensor current Is the flame sensor current at or above 1 micro amp No Remove the flame sen...

Страница 87: ...s the convection fan motor spinning No See Convection Motor Is Not Spinning Yes Is the N6 oven temperature probe below the set point No The convection element contactors will not be energized until the N6 oven temperature probe is below the set point Yes Is the burner igniting No See No Combustion On A Call For Heat Yes Appliance is heating properly ...

Страница 88: ...nvection fan motor spinning No See No High Speed Convection Motor Operation Yes Is the N6 oven temperature probe below the set point No The convection element contactors will not be energized until the N6 oven temperature probe is below the set point Yes Is the burner igniting No See No Combustion On A Call For Heat Yes The appliance is heating properly ...

Страница 89: ...es Is the burner igniting No See No Combustion On A Call For Heat Yes Is the Filtered Steam Injection Solenoid Y1 being energized No Determine which line is missing at the Y1 solenoid A1 is L1 supplied from the Control Board CB terminal X04 pin 3 A2 is L2 supplied from Y3 A2 which is supplied from terminal block 27 17 Yes Is the Y1 solenoid valve opening No Replace the faulty solenoid Yes Is water...

Страница 90: ...Yes Is the burner igniting No See No Combustion On A Call For Heat Yes Is the Filtered Steam Injection Solenoid Y1 being energized No Determine which line is missing at the Y1 solenoid A1 is L1 supplied from Control Board CB terminal X04 pin 3 A2 is L2 supplied from Y3 A2 which is supplied from terminal block 27 17 Yes Is the Y1 solenoid valve opening No Replace the faulty solenoid Yes Is water go...

Страница 91: ...es Is the burner igniting No See No Combustion On A Call For Heat Yes Is the Filtered Steam Injection Solenoid Y1 being energized No Determine which line is missing at the Y1 solenoid A1 is L1 supplied from Control Board CB terminal X04 pin 3 A2 is L2 supplied from Y3 A2 which is supplied from terminal block 27 17 Yes Is the Y1 solenoid valve opening No Replace the faulty solenoid Yes Is water goi...

Страница 92: ...Yes Is the burner igniting No See No Combustion On A Call For Heat Yes Is the Filtered Steam Injection Solenoid Y1 being energized No Determine which line is missing at the Y1 solenoid A1 is L1 supplied from Control Board CB terminal X04 pin 3 A2 is L2 supplied from Y3 A2 which is supplied from terminal block 27 17 Yes Is the Y1 solenoid valve opening No Replace the faulty solenoid Yes Is water go...

Страница 93: ...1 No Still getting an E94 error Disconnect the IB to CB CAN cable at the CB terminal X15 Yes Still getting an E94 error No Replace the current VFD with a new VFD Reconnect the VFD1 at VFD1 S600 Disconnect the VFD2 at VFD2 S600 Yes Replace the VFD2 No Still getting an E94 error Disconnect both ends of the current CAN cable inspect the terminals and firmly reattach the CAN cable Yes Still getting an...

Страница 94: ...operly populated on the board No Add or remove the jumper and retest Yes Is S905 populated with the jumper on single VFD systems or the last VFD on dual VFD systems No Populate and retest Yes Is the LED on the VFD illuminated No Check the fuses for continuity replace the blown fuses L1 is supplied from the F4 fuse L2 is supplied by terminal 5 of RL Y50 Retest Yes Is voltage supplied to the VFD on ...

Страница 95: ...es Is there continuity between the motor and the thermal protection switch No Replace the motor Yes The root cause of overheating must be determined call Alto Shaam Service for assistance Is the motor wiring to the Variable Frequency Drive VFD secure No Secure the wiring Yes Is the fan wheel damaged Yes Replace the fan wheel No Is the fan wheel locked Yes Unlock the fan wheel No Is there continuit...

Страница 96: ... Is there continuity between the motor and the thermal protection switch No Replace the motor Yes The root cause of overheating must be determined call Alto Shaam Service for assistance Is the motor wiring to the Variable Frequency Drive VFD secure No Secure the wiring Yes Is the fan wheel damaged Yes Replace the fan wheel No Is the fan wheel locked Yes Unlock the fan wheel No Is there continuity ...

Страница 97: ...MN 35949 Rev 07 01 20 Combitherm CT PROformance and CT Classic Series Technical Service Manual 97 Service Log Name Date Issue Actions Taken Resolved Service Log ...

Страница 98: ...98 MN 35949 Rev 07 01 20 Combitherm CT PROformance and CT Classic Series Technical Service Manual Service Log Notes ...

Страница 99: ...MN 35949 Rev 07 01 20 Combitherm CT PROformance and CT Classic Series Technical Service Manual 99 Service Log Notes ...

Страница 100: ...100 MN 35949 Rev 07 01 20 Combitherm CT PROformance and CT Classic Series Technical Service Manual Service Log Notes ...

Страница 101: ...MN 35949 Rev 07 01 20 Combitherm CT PROformance and CT Classic Series Technical Service Manual 101 Service Log Notes ...

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