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VCSO210SS

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In the interest of user-safety the oven should be restored to its original condition and only parts identical to those specified should
be used.

WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high voltage and
current. Contact with the following parts may result in a severe, possibly fatal, electrical shock. (Inverter unit that includes
High Voltage Capacitor, High Voltage Power Transformer, High Voltage Rectifier and Heat sink etc., and Magnetron, High
Voltage Harness etc..)

TABLE OF CONTENTS

Page
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO
AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY .......................................................... 2
BEFORE SERVICING ............................................................................................................................................ 2
WARNING TO SERVICE PERSONNEL ................................................................................................................. 3
MICROWAVE MEASUREMENT PROCEDURE ..................................................................................................... 4
FOREWORD AND WARNING ............................................................................................................................... 5
PRODUCT SPECIFICATIONS ............................................................................................................................... 6
GENERAL INFORMATION.................................................................................................................................... 7
WATER SUPPLY/DRAINAGE SCHEMATIC ........................................................................................................... 9
TEST PROCEDURE ............................................................................................................................................ 12
ERROR CHECK LIST .......................................................................................................................................... 14
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE................................................................. 23
PICTORIAL DIAGRAM ......................................................................................................................................... 32
PARTS LIST ........................................................................................................................................................ 35
PACKING AND ACCESSORIES .......................................................................................................................... 43

S52M342O210SS

COMBi STEAM/CONvECT

™

OvEN

SERviCE MANUAL

This document has been published to be used for after
sales service only.

Range Corporation

111 Front St., Greenwood, MS 38930

Tel: (888) 845-4641

vCSO210SS

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Summary of Contents for VCSO210SS

Page 1: ...h Voltage Harness etc TABLE OF CONTENTS Page PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY 2 BEFORE SERVICING 2 WARNING TO SERVICE PERSONNEL 3 MICROWAVE MEASUREMENT PROCEDURE 4 FOREWORD AND WARNING 5 PRODUCT SPECIFICATIONS 6 GENERAL INFORMATION 7 Water supply drainage schematic 9 TEST PROCEDURE 12 ERROR CHECK LIST 14 COMPONENT REPLA...

Page 2: ...ance Standard should be performed on each oven prior to release to the owner BEFORE SERVICING Before servicing an operative unit perform a microwave emission check as per the Microwave Measure ment Procedure outlined in this service manual If microwave emissions level is in excess of the specified limit contact Viking Service immediately 1 888 845 4641 If the unit operates with the door open servi...

Page 3: ...C SHOCK After repairing 1 Reconnect all leads removed from components during testing 2 Reinstall the outer case cabinet and the back plate assembly 3 Reconnect the power supply cord after the outer case and the back plate assembly are installed 4 Run the oven and check all functions Microwave ovens should not be run empty To test for the presence of microwave energy within a cavity place a cup of ...

Page 4: ... load of 275 15 ml 9 8 oz of tap water initially at 20 5O C 68O F in the center of the oven cavity The water container shall be a low form of 600 ml 20 oz beaker with an inside diameter of approx 8 5 cm 3 1 2 in and made of an electrically non conductive material such as glass or plastic The placing of this standard load in the oven is important not only to protect the oven but also to insure that...

Page 5: ...packing is not damaged D The door is not deformed or warped E There is no other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing Service personnel Do not contact the following parts while the appliance is energized Inve...

Page 6: ...ht 16 5 16 Depth 18 5 16 21 with handle Cooking Cavity Dimensions 1 1 Cubic Feet Stainless Steel Width 13 36 64 Height 9 1 16 Depth 11 13 16 Control Complement Heating modes Super Steam Convection Convection Steam Microwave Temperature control 200 450 o F Microwave power 0 100 Cooking time range 0 2 hours 30 minutes Clock 12 hour clock Oven Cavity Light Yes Safety Standard UL Listed FCC Authorized...

Page 7: ...High rack For Steam Convection Convection and Steam Do not use when microwave cooking Always place on baking tray 18 Low rack For Steam Convection Convection and Steam Do not use when microwave cooking Always place on baking tray 19 Baking tray x 2 For Steam Convection Convection Steam and Descale function Do not use when micr owave cooking 20 Steam basket For Steam You can also use for Steam Conv...

Page 8: ...rth between pages Whentherearenoarrows youcan gobacktothepreviouspagebytouching BACK INFO 2 The illustration at the top of display indicates the selected cooking mode Steam Convection was selected Steam was selected Microwave was selected Convection was selected 3 Words will light in the display to indicate features and cooking instructions Back Info Enter ...

Page 9: ...servoir delivers water to the water level unit Turning the heater ON generates steam Dew condensation water in the oven cavity and the exhaust air duct is discharged to the dew tray Activation of the pump delivers water to the engine through the tube 1 When installing the reservoir Water supply drainage schematic 2 When steaming and supper steam convection operations ...

Page 10: ... to discharge remained water in the engine unit assembly and tube Drain water mode Remained water in the tube is delivered to the engine Then the engine heater turn ON so as evaporate remained water in the engine unit assembly Remained water in the water level unit and dew condensation water in the oven cavity and the exhaust air duct are discharged to the dew tray Make sure to remove the reservoi...

Page 11: ... OFF Super Steam heater OFF OFF OFF ON OFF Fan motor AC motor ON ON ON ON Cooling fan motor DC motor ON ON ON ON Ventilation fan motor DC motor OFF OFF Sirocco fan motor Exhaust ON ON ON ON Convection motor OFF ON ON OFF Pump motor OFF OFF ON ON Oven lamp ON ON ON ON Input Thermistor Engine OFF OFF ON ON Thermistor Oven OFF ON ON OFF Water sensor OFF OFF ON ON AH sensor ON OFF OFF OFF Dew tray swi...

Page 12: ...erature of the water 2 Place the cup of water in the oven Operate oven at 100 power selecting more than 60 seconds cook time Allow the water to heat for 60 seconds measuring with a stop watch second hand of a watch or the digital read out countdown 3 Remove the cup from the oven and again measure the temperature making sure to stir the thermometer or thermocouple through the water until the maximu...

Page 13: ...erminal of the convection motor By doing so the state of the relay contacts using a ohmmeter can be checked The meter should indicate an open circuit Because the relay contacts should be open If the relay contacts are closed replace the circuit board entirely or the relay itself 9 Reconnect all leads removed from components during testing 10 Reinstall the outer case and the back plate assembly 11 ...

Page 14: ...to measure the exact temperature in the convection oven An accurate thermocouple type temperature tester must be used A low priced bi metal type thermometer is not reliable or accurate Position the thermocouple in the center of the oven cavity The temperature should be checked with outer case cabinet installed and set the oven temperature to 450 F in the convection mode Bake or Roast Approx 10 min...

Page 15: ...nditions Test mode 00 see 9 TEST MODE page 21 22 H side water level sensor 80 h or more L side water level sensor 80 h or more Repair connector Repair connector If there is water touching covering the three water level sensors it is NOT infinite You get anywhere from a few M ohms to a few hundreds of K ohms NOTE 1 How to check water supply performance 1 Check of water level sensor performance 7 Ho...

Page 16: ...ray Then close the door again Empty the dew try then plug it back into the oven After 20 seconds remove the dew tray and return accumulated water in the tray to the tank Remove the tank from the main oven Confirm that water is flowing at the feed water inlet of the engine YES Is there breakage or clogging in the tube Stop the operation Normal Measure weight of the water tank Weight after the opera...

Page 17: ...tor pulled out of the board The oven thermistor resistance is within its appropriate range Is the connector between the oven thermistor and board either disconnected or shorted Connect or repair the connector Replace the oven thermistor or the harness Replace the control unit or the display unit YES YES YES YES NO NO NO NO Measure element resistance between the opened and sealed sides of the humid...

Page 18: ...he latch Replace the Engine thermostat Is the connectors between the engine thermistor board and engine mounting section disconnected or short circuited Connect repair the terminal s or replace the harness Replace the engine thermistor or the harness Replace the engine unit Replace the control board the display board or the harness The engine thermistor resistance is within its appropriate range A...

Page 19: ...he control unit Reset occurs Is there a voltage of about 120 V between the terminals of each of the supersteam heater engine heater and convection heater Raeplace the engine unit assembly when the supersteam heater does not function Replace the engine unit assembly when the engine heater does not function Replace the convection heater when the convection heater does not function The supersteam hea...

Page 20: ...n remove outer case 2 Open the door and block it open 3 To discharge high voltage capacitor wait for 60 seconds 4 Make sure that the wire leads and the connectors are connected correctly to the inverter unit control unit and magnetron Chart for checking the defective inverter unit No power at full power output cooking Magnetron is defective Exchange the magnetron Exchange the Inverter unit Blown m...

Page 21: ...C Fan cooling 10 09 9 bits detected DC Fan ventilation Exhaust Fan MICRO Error indication In the event of sensor fault or 16 or more bits not acceptable is indicated by 10 and the test mode will not proceed next part steam heating TEST10 16 or more bits detected AH failure 10 2 Steam heating E heater TEST10 Tube Pump 2 1 Check whether the water level is at 2 level when starting 2 2 Check whether t...

Page 22: ...judged not judged Both water level sensor is off at the same time １０１０ during steam heating mode NG OK not judged Both water level sensor is off at the same time １００１ during steam heating mode NG under checking OK Both water level sensor is off at the same time １０１１ during steam heating mode NG OK OK Both water level sensor is off at the same time ０１００ immediate steam heating shortage of water...

Page 23: ...catch the wire leads in the outer case cabinet 4 Insert the positive lock connector until its pin is locked and make sure that the wire leads do not come off even if the wire leads are pulled 5 To prevent an error function connect the wire leads correctly referring to the Circuit Diagram 1 Disconnect the power supply cord and then remove the outer case and the back plate assembly 2 Open the door a...

Page 24: ...t there is no microwave leakage otherwise microwave leakage may result Always make latch adjustment otherwise mal function may result 3 After any service to the door 1 Make sure that the door sensing switch the secondary interlock switch and the monitor switch are operating properly Refer to chapter page 26 switch adjustment 2 An approved microwave survey meter should be used to assure compliance ...

Page 25: ... very purpose of which is exhaust the vapor laden air from the oven cavity Screws Screws Spacer Door cam Door cam Sealer Oven cavity front 1 REMOVAL 1 Disconnect the power supply cord 2 Remove the outer case cabinet referring to OUTER CASE CABINET REMOVAL 3 Open the oven door and block it open 4 Wait for 60 seconds to discharge the high voltage capacitor of the inverter unit 5 Disconnect the wire ...

Page 26: ... check the position of the latch hook left pushing and pulling left portion of the door toward the oven face Both results play in the door should be less than 0 5 mm 2 All switches except monitor will open with a 1 9mm gap between oven door and cavity face 3 Monitor switch will close with same amount of gap Monitor switch closes when door is open 4 Reinstall the outer case cabinet and check for mi...

Page 27: ...Ventilator Fan Fig 4 15 Lift the bottom plate assembly to remove it from the oven body and lay it to the side of the unit This will alow some wires to stay connected Fig 5 NOTE In order to prevent the fan duct covering around the magnetron terminal from hitting the terminal slightly shift the bottom plate assembly toward the left hinge assembly and then lift the bottom plate assembly Mounting scre...

Page 28: ...liers 5 Make the terminal metal part of the high voltage wire contact to the magnetron body with insulated pliers 6 Now the capacitors of the inverter unit are discharged WARNING Use the pliers that the portions of their handles are insulated completely to avoid an electric shock 7 Remove the latch hook right referring to DOOR SENS ING SWITCH THIRD DOOR SWITCH and SECOND ARY INTERLOCK SWITCH AND M...

Page 29: ...ors of the inverter unit are discharged 7 Reconnect the high voltage wire to the magnetron terminal after discharging WARNING Use the pliers that the portions of their handles are insulated completely to avoid an electric shock 8 Remove the wire harness from the convection heater by removing the two 2 screws 9 Remove the wire harness from the convection motor 10 Remove the two 2 screws holding the...

Page 30: ...en with eleven 11 screws 4 Reconnect the wire leads to the magnetron convection heater convection motor and thermal cut outs 5 Reinstall outer case and check that the oven is operating properly CAUTION WHEN REPLACING THE MAGNETRON BE SURE THE R F GASKET IS IN PLACE AND THE MAGNETRON MOUNTING SCREWS ARE TIGHTENED SECURELY SIROCCO MOTOR REMOVAL 1 Disconnect the power supply cord 2 Wait for 60 second...

Page 31: ...ltage wire contact to the magnetron body with insulated pliers 6 Now the capacitors of the inverter unit are discharged WARNING Use the pliers that the portions of their handles are insulated completely to avoid an electric shock 7 Remove the bottom plate assembly referring to BOTTOM PLATE ASSEMBLY REMOVAL 8 Remove the one 1 screw holding the filter cover to the bottom plate 9 Straighten the tab o...

Page 32: ... RED RED 20 18 16 14 12 10 8 6 4 2 GRY GRY BLU ORG RED BLK Humidity Sensor from Touch Control Transformer B E H F C D BRN RED ORG YLW BLK BLU IN BOARD HARNESS From Board Main Harness side CN E in Board Harness 1 2 3 4 5 6 B E H F C D INSERT SPOT BOARD SIDE BRN RED ORG YLW BLK BLU 1 2 3 4 5 6 BLE GRY WHT GRY BLK BLU 1 2 3 4 5 6 2 DISPLAY UNIT WHT BLK GRY RED WHT BLK GRY RED WHT BLK GRY RED 1 2 3 4 ...

Page 33: ...ry Interlock Switch 3rd Door Switch COM RED RED N O N O COM COM N C N O COM RED RED RED BLK GRY RED ORG RED RED RED WHT LATCH SWITCHES INVERTER UNIT NOISE FILTER RED RED RED BLU BLU BLE GRN 3 2 1 CN A Ground RED BLUE Power Supply Cord to Bottom Plate BLK RED BLK WHT WHT WHT GRN to in line connector from Fuse ...

Page 34: ... BYPASS CAPACITOR 3300pF 250V NOISE FILTER UNIT LINE CROSS CAPACITOR 3 3μF 250V OL CM PM FM FM SM FM FM 1 4 3 5 6 2 DEW RECEIVING SWITCH THER MISTOR ENGINE THER MISTOR OVEN EXHAUST FAN DC24V SIROCCO DOOR SENSING SWITCH COOLING FAN DC24V ENGINE THERMAL CUT OUT MONITOR SWITCH 3rd DOOR SWITCH VENTILATION FAN DC24V BOTTOM VENTILATION FAN DC24V RED BLUE INVERTER UNIT CIRCUIT 250 250 VRS100 D110 D100 R1...

Page 35: ...LDHA077WRYZ Heat cover r assembly 8 28 FTNK A053WRKZ Tank assembly Reservoir 8 28 1 PCOVPA525WRFZ Tank lid Reservoir lid 8 32 MJNTPA016WRFZ WL joint 8 33 MSPRPA106WREZ Tank spring 8 34 PCOVPA536WRFZ Tank cover 8 35 PCOVPA527WRFZ Tank cover L 8 36 PJNT A020WRFZ WL joint upper 8 37 PPAC A131WREZ Pump packing 8 38 PTUBXA069WREZ Water tube 8 39 LANGKB449WRPZ Conv Motor mounting angle 8 40 LANGKB360WRP...

Page 36: ...or 8 137 TCAUAA327WRRZ Monitor caution 8 140 FSFTTA068WRFZ Shaft assembly 8 141 MSPRCA153WREZ TT spring antenna motor 8 142 PCUS A260WREZ Cushion 8 143 LANGKB390WRPZ CONV Cover angle D 8 144 PCUS A255WREZ Cushion 8 145 PCUS A234WREZ Cushion 8 146 PSPAFA002WREZ Spacer 8 147 PCUS A209WREZ Cushion 8 148 PCUS A256WREZ Cushion 8 149 MSPRCA184WREZ Thermistor spring 8 150 TCAUAA414WRRZ Monitor caution fr...

Page 37: ... XTPS740P40000 Screw 4mm x 40mm 9 39 XUBS740P36000 Screw 4mm x 36mm 9 40 LX BZA171WREZ Special screw 9 41 LX CZA084WREZ Special screw 9 42 XFPWW30P06000 Screw 3mm x 6mm 9 43 LX BZA202WREZ Special screw 9 45 LX BZA144WREZ Special screw 9 46 LX CZ0052WRE0 Special screw 9 47 XWHS740 08100 Washer NOTE Reference numbers are not sequential due to some parts not having a reference number ...

Page 38: ... 9 39 9 39 9 2 9 45 9 2 9 2 9 16 9 16 9 2 9 2 8 1 8 2 9 2 9 23 9 24 9 32 8 83 8 76 8 71 8 52 8 38 8 132 8 53 8 50 8 34 8 22 8 28 8 28 1 8 84 8 85 8 35 8 77 1 21 1 21 1 1 21 2 9 2 9 10 9 5 1 28 9 18 9 17 9 14 9 12 9 25 9 24 9 14 9 2 9 19 9 20 9 21 9 14 9 14 8 49 8 45 8 71 8 48 8 47 9 15 9 15 9 20 8 39 8 109 8 147 8 108 8 110 8 113 8 114 8 40 8 46 8 43 9 33 9 2 8 128 8 133 8 144 9 2 9 2 9 2 8 86 8 7...

Page 39: ...e 8 58 MCAMPA171WRMZ L door cam 8 59 MCAMPA173WRMZ R door cam 8 60 MSPRTA258WREZ Door spring R 8 61 MSPRTB036MRE0 Door spring L 8 62 PCOV A109WRPZ Filter cover 8 63 PCOV A154WRFZ Exhaust cover 8 65 PCUS A204WREZ Cushion 8 66 PCUS A205WREZ Cushion 8 67 PCUS A206WREZ Cushion 8 68 MLEVPA285WRFZ Lever 8 69 MSPRCA177WREZ Dew tray spring 8 79 PCUS A223WREZ Dew tray guide cushion 8 94 PCUS A234WREZ Cushi...

Page 40: ...1 9 1 9 1 9 32 9 32 9 44 9 44 1 31 9 1 9 5 8 60 9 2 1 20 8 31 8 30 9 8 1 9 8 7 1 11 1 8 8 63 8 95 8 95 8 136 8 65 8 135 8 6 8 79 8 79 8 11 8 10 8 12 8 19 8 29 8 5 8 61 8 115 8 9 8 4 8 58 8 20 8 127 8 127 8 8 8 59 8 98 7 2 8 62 7 3 1 7 9 2 9 5 9 3 9 5 9 34 9 34 9 35 9 36 9 37 8 112 1 18 9 48 9 7 9 6 9 1 1 33 8 120 8 69 8 68 8 137 CABINET PARTS ...

Page 41: ...KB452WRWZ Door support angle 6 13 HDECAB831MRT0 Panel dec right S 6 14 PCOVPA506WRFZ Switch PWB cover 6 15 PCOVPA507WRFZ Wire protect cover 6 16 PPAC A149WREZ Door packing 6 17 PPAC A117WREZ PWB packing 6 18 XEBS730P12000 Screw 3mm x 12mm 6 19 XEPS740P10000 Tapping screw 4mm x 10mm 6 20 LANGKB453WRWZ Latch spring mounting angle right 6 21 LHLD A332WRFZ Latch head right 6 22 LHLD A333WRFZ Latch hea...

Page 42: ...0 6 14 6 18 6 17 1 4 6 1 6 9 6 2 6 4 6 16 6 19 6 7 6 23 6 24 6 12 6 22 6 6 19 6 18 6 6 6 21 6 23 6 24 6 20 6 25 x2 6 25 x2 6 11 6 13 6 27 6 5 6 8 6 26 6 28 6 19 6 4 5 1 2 3 6 4 5 1 2 3 A B C D E F G H A B C D E F G H DOOR PARTS ...

Page 43: ... PARTS 1 12 FW VZC207WREZ Control harness 1 13 FW VZC353WREZ Main harness 1 23 FW VZC355WREZ Antenna motor harness 1 24 QW HZA132WRZZ High voltage harness 8 57 LHLDWA013WRE0 Purse lock LL 8 64 LHLDWA012WRE0 Purse lock L Not replaceable items Owner card 90 6 90 3 90 1 WRAP COVER Door protection sheet 90 5 90 2 Pad A Accessory case Pad C Pad B Packing case Unit wrap 8 4 8 5 Bottom foam Wrap cover To...

Page 44: ...RPORATION ALL RIGHTS RESERVED Nopartofthispublicationmaybereproduced stored in retrieval systems or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher ...

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