Kenmore 401.85052010 Service Manual
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Kenmore 401.85052010 Service Manual

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MODEL :
401.85052010
401.85053010
401.85059010
1. Precaution
2. Specification
3. Operating Instructions
4. Installation
5. Disassembly and Reassembly
6. Alignment and Adjustments
7. Troubleshooting
8. Exploded Views and Part List
9. PCB Diagrams
10. Wiring Diagrams
11. Schematic Diagrams

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Summary of Contents for Kenmore 401.85052010

  • Page 1 MODEL : 401.85052010 401.85053010 401.85059010 1. Precaution 2. Specification 3. Operating Instructions 4. Installation 5. Disassembly and Reassembly 6. Alignment and Adjustments 7. Troubleshooting 8. Exploded Views and Part List 9. PCB Diagrams 10. Wiring Diagrams 11. Schematic Diagrams...

  • Page 2: Table Of Contents

    • Contents 1. Precaution ................... . 3 1-1 Safety precautions .

  • Page 3: Precaution

    1. Precaution...

  • Page 4: Safety Precautions

    1. Precaution Follow these special safety precautions . Although the microwave oven is completely safe during ordinary use, repair work can be extremely hazardous due to possible exposure to microwave radiation, as well as potentially lethal high voltages and currents . 1-1 Safety precautions ( 1.

  • Page 5: Special High Voltage Precautions

    1. Precaution 1-2 Special High Voltage Precautions 1. High Voltage Warning Do not attempt to measure any of the high voltages --this includes the filament voltage of the magnetron . High voltage is present during any cook cycle . Before touching any components or wiring, always unplug the oven and discharge the high voltage capacitor (See Figure 1-1) 2.

  • Page 6: Specifications

    2. Specifications 2-1 Table of Specifications Items Numerical Value TIMER 99 MINUTES 99SECONDS POWER SOURCE 120 V 60 Hz POWER CONSUMPTION MICROWAVE 1,700 W OUTPUT POWER 1,100 W OPERATING FREQUENCY 2,450 MHz MAGNETRON OM75P(21) COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS (W) x 16 (H) x 15 OVEN CAVITY DIMENSIONS (W) x 10...

  • Page 7: Accessory

    2. Specifications 2-2 Accessory Item Description Glass tray Roller guide ring Top Template Wall template Installation instructions Use and Care Guide Hardware-kit Grease filter Charcoal filter Shelf Exhaust adaptor...

  • Page 8: Operating Instructions

    3. Operating Instructions 3-1 Control Panel...

  • Page 9: Features & External Views

    3. Operating Instructions 3-2 Features & External Views Door Handle Window with Metal Shield Cooking Guide Wire Rack Model and Serial Glass Turntable Door Safety Oven Control Number Plate Lock System Panel 758.9 mm 389.6 mm...

  • Page 10: Installation

    4. Installation The Microwave Oven is supported by a special bracket assembly (mounting system) supplied with the oven . The bracket assembly must be mounted to the wall with toggle bolts through the wall, and a lag screw into a wall stud . After the bracket assembly is installed, the unit can be slid over the two rails of the bracket assembly .

  • Page 11: Automatic Fan

    4. Installation REMOVING CHARCOAL FILTER Screws To remove the charcoal filter, disconnect power at the main fuse or circuit breaker panel or pull the plug . Remove the top grill by removing the 2 screws that hold it in place . Slide the filter towards the filter towards the front of the oven and remove it .

  • Page 12: Disassembly And Reassembly

    5. Disassembly and Reassembly MAGNETRON, MOTOR ASSEMBLY, VENT BLOWER AND HIGH VOLTAGE TRANSFORMER Oven must be removed from wall. REMOVING OVEN FROM WALL (2 PEOPLE REQUIRED) Oven is hooked on metal tabs at bottom of wall mounting plate and to cabinet by (3) top cabinet bolts . 5-1 Replacement of High Voltage Transformer Parts Explaination Photo...
  • Page 13 5. Disassembly and Reassembly 5-1 Replacement of High Voltage Transformer Parts Explaination Photo Explaination 4. Discharge the High voltage capacitor . High voltage capacitor 5. Disconnect all the leads . 6. Remove Base Bottom Base bottom . HV Trans 7. Take out the HV Trans .

  • Page 14: Replacement Of Magnetron

    5. Disassembly and Reassembly 5-2 Replacement of Magnetron Parts Explaination Photo Explaination Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all of which are contained in one assembly) . 1. Disconnect all lead wires from the magnetron .

  • Page 15: Replacement Of Fan Motor

    5. Disassembly and Reassembly 5-3 Replacement of Fan Motor Parts Explaination Photo Explaination 1. Remove Grille and Panel Outer . 2. Disconnect all lead wires from Fan Motor and High Voltage Transformer . 3. Put out Assy Fan Motor . Fan Motor 4.

  • Page 16: Replacement Of Door Assembly

    5. Disassembly and Reassembly 5-4 Replacement of Door Assembly Parts Disassembly Photo Explaination 1. Insert flat screwdriver into the gap between Door Removal of “A” and Door “C” to remove Door “C” . Be careful Door Assembly when handling Door “C” because it is fragile .Then remove the door assembly .

  • Page 17: Replacement Of Door Assembly

    5. Disassembly and Reassembly 5-4 Replacement of Door Assembly Removal of 4. Remove 2 screws, then handle is detached from Handle Door “A” . 5. Following the procedure as shown in the figure, insert and bend a thin metal plate between Door Removal of “E”...

  • Page 18: Replacement Of Fuse

    5. Disassembly and Reassembly 5-5 Replacement of Fuse Parts Explaination Photo Explaination The fuse is located on the noise filter. 1. Disconnect power and remove grille . 2. Replace the fuse . 3. When 20A fuse blows out by the operation of interlock monitor switch failure, replace the primary interlock switch, secondary Fuse...

  • Page 19: Removal Of Stirrer

    5. Disassembly and Reassembly 5-7 Removal of stirrer Parts Explaination Photo Explaination The stirrer is motor driver and located on the upper side of the cavity . The oven uses a top feed wave guide . The stirrer is located in the wave guide and the motor is located on the wave guide .

  • Page 20: Replacement Of Control Circuit Board

    5. Disassembly and Reassembly 5-8 Replacement of Control Circuit Board Parts Explaination Photo Explaination 1. Disconnect power and remove grille . 2. Be sure to ground any static electric charge in your body and never touch the control circuit . Removal of Control Box 3.

  • Page 21: Replacement Of Cooktop Lamp

    5. Disassembly and Reassembly 5-9 Replacement of Cooktop lamp When replacing the night light, make sure that you are wearing gloves to avoid injury from the heat of the bulb . Parts Explaination Photo Explaination 1. Unplug the oven or turn off the power at the main power .

  • Page 22: Replacement Of Oven Light

    5. Disassembly and Reassembly 5-10 Replacement of Oven Light Parts Explaination Photo Explaination 1. Remove the Grille 2. Remove the COVER LAMP by removing the screw and put up the Oven Light lever . 3. Replace the bulb with a 40 watt appliance bulb .

  • Page 23: Alignment And Adjustments

    6. Alignment and Adjustments PRECAUTION 1. High voltage is present at the high voltage terminals during any cook cycle . 2. It is neither necessary nor advisable to attempt measurement of the high voltage . 3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the high voltage capacitor .

  • Page 24: High Voltage Diode

    6. Alignment and Adjustments 6-4 High Voltage Diode 1. Isolate the diode from the circuit by disconnecting its leads . 2. With the ohm-meter set at the highest resistance scale, measure across the diode terminals . Reverse the meter leads and read the resistance . A meter with 6V, 9V or higher voltage batteries should be used to check the front-to back resistance of the diode (otherwise an infinite resistance may be read in both directions).

  • Page 25: Vent Exhaust Blower Motor

    6. Alignment and Adjustments 6-7 Vent Exhaust Blower Motor THIS COMPONENT REQUIRE REMOVAL OF MICROWAVE OVEN FROM INSTALLATION FOR SERVICING. RUN CAPACITOR The run capacitor is located behind the top grill above the control area . The capacitor is used for more torque and electrical phasing .

  • Page 26: Thermal Cutout (Tco's)

    6. Alignment and Adjustments 6-8 Thermal Cutout (TCO’S) There are 4 different thermal cutouts in this unit with 4 different purposes . They are : 1. Oven thermal cutout (flame sensor), on cavity top. 2. Hood thermal cutout, inside control area on duct . 3.

  • Page 27: Hood Thermal Cutout

    6. Alignment and Adjustments 6-8-3 Hood Thermal Cutout This cutout will protect the touch control from excessive heat by turning the vent fan on at low speed . If the surface units of the range are used for long periods of time heat will build up and could damage the microwave control .

  • Page 28: Output Power Of Magnetron

    6. Alignment and Adjustments 6-9 Output Power of Magnetron PRECAUTION MICROWAVE RADIATION PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY . The output power of the magnetron can be measured by performing a water temperature rise test . Equipment needed : •...

  • Page 29: Procedure For Measurement Of Microwave Energy Leakage

    6. Alignment and Adjustments 6-10 Procedure for Measurement of Microwave Energy Leakage 1. Pour 275±15cc of 20±5°C(68±9°F) water in a beaker which is graduated to 600cc, and place the beaker in the center of the oven . 2. Start to operate the oven and measure the leakage by using a microwave energy survey meter .

  • Page 30: Sensor

    6. Alignment and Adjustments 6-14 Sensor The Sensor Cooking Function uses a special gas sensor which detects both humidity(steam) and hydrocarbons(food odors) during the cooking process . Before conducting either of the sensor tests below, ensure the unit is plugged into a will outlet for at least 5 minutes . If already plugged in, proceed .

  • Page 31: Troubleshooting

    7. Troubleshooting PRECAUTION 1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE. 2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT . 3. DISCHARGE THE HIGH VOLTAGE CAPACITOR . 4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD WIRE FROM THESE PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON .
  • Page 32 Oven does not accept key input Open or loose connection of membrane key pad to Ass’y PCB 7. Troubleshooting Shorted or open membrane panel Replace PCB main. Defective Ass’y PCB Timer starts countdown but no microwave oscillation. (No heat while oven lamp and fan motor turn on.) Off-alignment of latch switches Adjust door and latch switches.
  • Page 33 Consult electrician. Loose wiring of door sensing switch on when plugged in (Intermittent oscillation) Aging of magnetron Fan motor turns Consult electrician. Loose wiring of door sensing switch on when plugged in Aging of magnetron Fan motor turns Consult electrician. Loose wiring of door sensing switch on when plugged in 7.

  • Page 34: Error Code List

    7. Troubleshooting 7-2 Error Code List Gas Sensor Error Code Cause and conuntermeasure -SE- Key short error(10 sec.). Replace assy control panel or smart board. Sensor open error . Check unplugged sensor, wiring or smart board . If necessary, replace E-11 sensor .

  • Page 35: Exploded Views And Parts List

    8. Exploded Views and Parts List 8-1 Exploded Views (85052) M024 P007 G361 D046 M086 M543 P012 P034 Y097 D005 D049 D006 D004 P442 P443 D002 M015 M102 M001 M061 M036 D024 G244 P432 D007 P359 M021 D011 T166 P433 C309 P026 P036...
  • Page 36 8. Exploded Views and Parts List 8-1 Exploded Views (85053) M024 P007 G361 D046 M086 M543 P012 P034 Y097 D005 D049 D006 D004 P442 P443 D002 M015 M102 M001 M061 M036 D024 Z779 G244 P432 D007 P359 M021 D011 T166 P433 C309 P026...
  • Page 37 8. Exploded Views and Parts List 8-1 Exploded Views (85059) M024 P007 G361 D046 M086 M543 P012 P034 Y097 D005 D049 D006 D004 P442 P443 D002 M015 M102 M001 M061 M036 D024 G244 P432 D007 P359 M021 D011 T166 P433 C309 P026 P036...

  • Page 38: Main Parts List (85052)

    8. Exploded Views and Parts List 8-2 Main Parts List (85052) (85052) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark B013 DE66-90106B LEVER SWITCH-LOWER OTR6,PP,T1 .4,-,-,-,-, B022 DE96-00414A ASSY BODY LATCH RVM-1625BJ,- B047 3405-001033 SWITCH-MICRO 125/250VAC,16A,200gf,SPST-N B048 3405-001034 SWITCH-MICRO...
  • Page 39 8. Exploded Views and Parts List 8-2 Main Parts List (Continued) (85052) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark M034 DE67-00236A COUPLER MMV1163,SPS,-,-,-,MODULAR-3 OM75P-21- M035 ASSY MGT ESGN M036 4713-001013 LAMP-INCANDESCENT 130V,40W,ORG,25X73 M038 DE26-00126B TRANS H .V SHV-U1870D,120V,60Hz,2545/2385 M039 2501-001011...
  • Page 40 8. Exploded Views and Parts List 8-2 Main Parts List (Continued) (85052) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark P036 DE39-40678D WIRE HARNESS-S SMH7185WG/XAA,120V60HZ,86 P086 DE61-01304A BRACKET-BARRIER MODULAR4,EGI-SECC,T0 .4 P088 DE60-20022A BOLT-TOGGLE -,-,-,W3/16X75,-,MSWR,-,-,- P089 DE60-20066A BOLT-FLAT -,MSWR10,-,L110,-,UNF1/4,-,-,- P090...

  • Page 41: Main Parts List (85053)

    8. Exploded Views and Parts List 8-3 Main Parts List (85053) (85053) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark B013 DE66-90106B LEVER SWITCH-LOWER OTR6,PP,T1 .4,-,-,-,-, B022 DE96-00414A ASSY BODY LATCH RVM-1625BJ,- B047 3405-001033 SWITCH-MICRO 125/250VAC,16A,200gf,SPST-N B048 3405-001034 SWITCH-MICRO...
  • Page 42 8. Exploded Views and Parts List 8-3 Main Parts List (Continued) (85053) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark M034 DE67-00236A COUPLER MMV1163,SPS,-,-,-,MODULAR-3 OM75P-21- M035 ASSY MGT ESGN M036 4713-001013 LAMP-INCANDESCENT 130V,40W,ORG,25X73 M038 DE26-00126B TRANS H .V SHV-U1870D,120V,60Hz,2545/2385 M039 2501-001011...
  • Page 43 8. Exploded Views and Parts List 8-3 Main Parts List (Continued) (85053) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark P088 DE60-20022A BOLT-TOGGLE -,-,-,W3/16X75,-,MSWR,-,-,- P089 DE60-20066A BOLT-FLAT -,MSWR10,-,L110,-,UNF1/4,-,-,- P090 DE60-30022A NUT-TOGGLE -,WHT,ZPC2,-,-,-,-,-,- P091 DE63-10011A GROMMET -,MS,-,-,-,DACB-16,-,-,- P109 DE63-00661A COVER-MOTOR...

  • Page 44: Main Parts List (85059)

    8. Exploded Views and Parts List 8-4 Main Parts List (85059) (85059) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark B013 DE66-90106B LEVER SWITCH-LOWER OTR6,PP,T1 .4,-,-,-,-, B022 DE96-00414A ASSY BODY LATCH RVM-1625BJ,- B047 3405-001033 SWITCH-MICRO 125/250VAC,16A,200gf,SPST-N B048 3405-001034 SWITCH-MICRO...
  • Page 45 8. Exploded Views and Parts List 8-4 Main Parts List (Continued) (85059) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark M029 DE47-00050B THERMOSTAT KSD,140±5'C,0,23.8mm,187V M034 DE67-00236A COUPLER MMV1163,SPS,-,-,-,MODULAR-3 OM75P-21- M035 ASSY MGT ESGN M036 4713-001013 LAMP-INCANDESCENT 130V,40W,ORG,25X73 M038 DE26-00126B...
  • Page 46 8. Exploded Views and Parts List 8-4 Main Parts List (Continued) (85059) (S.N.A : SERVICE NOT AVAILABLE) Code No. Description Specification Q’ty SA/SNA Remark P086 DE61-01304A BRACKET-BARRIER MODULAR4,EGI-SECC,T0 .4 P088 DE60-20022A BOLT-TOGGLE -,-,-,W3/16X75,-,MSWR,-,-,- P089 DE60-20066A BOLT-FLAT -,MSWR10,-,L110,-,UNF1/4,-,-,- P090 DE60-30022A NUT-TOGGLE -,WHT,ZPC2,-,-,-,-,-,- P091 DE63-10011A...

  • Page 47: Pcb Diagrams

    9. PCB Diagrams 9-1. PCB Diagrams...

  • Page 48: Pcb Diagrams

    9. PCB Diagrams 9-2. PCB Diagrams TR207 KRC246 TR206 KRC246 TR205 KRC246 TR211 KRC246 TR210 KRC246 TR209 KRC246 TR212 KRC246 IC101 TMP86CM72FG-CHUN,MH3 R708 R709 R710 R711 R712 R713 R714 DSP101 VFD25-0717...

  • Page 49: Wiring Diagrams

    10. Wiring Diagrams 10-1 Wiring Diagrams...

  • Page 50: Wiring Diagrams

    10. Wiring Diagrams 10-2 Wiring Diagrams...

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