Kenmore 721.60102000 Microwave Oven Owner’s Manual

Kenmore 721.60102000 Microwave Oven

Product Information

Specifications

• Brand: Kenmore
• Model: 60102
• Type: Microwave
• Compatibility: 532 Models of Kenmore Microwaves

Product Usage Instructions

Unpacking and Inspection

• Upon receiving the product, carefully unpack it and inspect for any visible damages or missing parts.

Installation

• Place the microwave on a flat, stable surface with proper ventilation to ensure heat dissipation.

Power Connection

• Plug the microwave into a grounded power outlet that meets the specified voltage requirements.

Setting Up

• Follow the user manual instructions to set up the clock, time, and cooking settings according to your preferences.

Operating the Microwave

• Refer to the user manual for specific instructions on operating different functions such as defrost, timer, and power levels.

Frequently Asked Questions

Q: How do I clean the microwave?

A: To clean the microwave, use a mild detergent and water solution to wipe down the interior and exterior surfaces. Avoid using abrasive cleaners that can damage the finish.

Q: Can I use metal containers in the microwave?

A: It is not recommended to use metal containers in the microwave as they can cause sparks and damage the appliance. Stick to microwave-safe cookware.

Q: What should I do if the microwave displays an error code?

A: If the microwave displays an error code, refer to the user manual for troubleshooting steps. If the issue persists, contact customer support for assistance.

• CAUTION WARNING TO SERVICE TECHNICIANS PRECAUTIONS ARE TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
• a. Do not operate or allow the oven to be operated with the door open.
• b. Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary; (1) Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse.
• c. Before turning on the microwave for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections.
• d. Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired and adjusted by procedures described in this manual before the oven is released to the owner.
• e. A Microwave leakage check to verify compliance with the Federal performance standard should be performed on each oven before release to the owner.
• Proper operation of the microwave ovens requires that the magnetron be assembled to the waveguide and cavity. Never operate the magnetron unless it is properly installed.
• Be sure that the magnetron gasket is properly installed around the dome of the tube whenever installing the magnetron.
• Routine service safety procedures should be exercised at all times.
• Untrained personnel should not attempt service without a thorough review of the test procedures and safety information contained in this manual.

FOREWORD

Read this Manual carefully. Failure to adhere to or observe the information in this Manual may result in exposing yourself to the Microwave Energy normally contained within the oven cavity.

ADJUSTMENT PROCEDURES

• To avoid possible exposure to microwave energy leakage, adjust the door latches and interlock switches, using the following procedure.

ONLY AUTHORIZED SERVICE PERSONNEL SHOULD MAKE THIS ADJUSTMENT

• The Interlock Monitor and Primary Interlock Switch act as the final safety switch protecting the user from microwave energy. The terminals between “COM” and NC” of the Interlock Monitor must close when the door is opened. After adjusting the Interlock
• Monitor the Switch, and make sure that it is correctly connected. See Figures 1-a and 1-b throughout this procedure.

CHECK THE DOOR LATCH AND SWITCH CLOSINGS

NOTE: The outer cover of the microwave oven is removed.

1. Set the microwave oven on its side so that you can see the latch board and the switches, as shown in Figure 1-a.
2. Close the door tightly and check gaps A and B to be sure they are no more than 1/64″ (0.5 mm). See Figure 1-b for a close-up view of gaps A and B (door latches).
   • If all gaps are less than 1/64″ (0.5 mm), adjustment of the latch board may not be necessary. Go to Steps 5 and 6 to check the sequence of the switches.
   • NOTE: Correct the sequence of the Primary Interlock Switch, Secondary Interlock Switch, and Interlock Monitor Switch is very important.
   • If any gap is larger than 1/64* (0.5 mm), you will need to adjust the latch board-U, L. Go to step 3 and follow all steps in order.
   • ADJUST THE LATCH ANO SWITCH CLOSINGS
3. Loosen the two screws holding the plastic latch board as shown.
4. With the oven door closed tightly, move the latch board upward toward the top of the oven and/or away from the door latch until the gaps are less than 1/64″ (0.5 mm).
   • Hold the latch board tightly in this position until you check the sequence of the switches in steps 5 and 6.
   • TEST THE LATCH AND SWITCH SEQUENCE
5. Open the oven door slowly. Watch the door latch, the Primary Switch. Release the Rod and Lever on the switches to make sure they are zero to the body of the switches in the following sequence:
   • Primary Interlock Switch
   • Secondary Interlock Switch
   • Interlock Monitor Switch
   • Adjust the latch board until the switches operate in this sequence. See Steps 3 and 4.
6. Close the oven door slowly and be sure it is tightly closed. Watch the three switches to make sure they are zero to the body of the switches in the following sequence:
   • Interlock Monitor Switch
   • Primary Interlock Switch
   • Secondary Interlock Switch
   • NOTE: The Interlock Monitor Switch is an added safety check on the Primary and Secondary Interlock Switches. If the Primary and Secondary Interlock Switches allow the oven to operate with the door open, the Monitor Switch will blow the fuse.
7. When you achieve the proper sequence of switches in Steps 5 and 6, tighten the latch board screws at that point.
   • TEST THE MICROWAVE ENERGY LEAKAGE
8. Using a survey meter, make sure the microwave energy is below 5 mW/cm.sq.

PRECAUTIONS ON INSTALLATION

(Figure 2)

• A. Plug the power supply cord into a 120 V AC, 60 Hz, single-phase power source with a capacity of at least 15 amperes.
• B. Since the unit weighs about 26 lbs, be sure to place it on a sturdy and flat surface.
• C. Avoid placing the unit in a location where there is direct heat or splashing water.
• D. Place the unit as far away as possible from TV, radio, etc. to prevent interference.

CAUTION This unit is equipped with a 3-prong plug for your safety. If the wall outlet is a grounded 3-hole type, the unit will be grounded automatically.

GENERAL PRECAUTIONS IN USE

• A. Never operate the unit when it is empty. Operating the oven with no load may shorten the life of the magnetron.
  • Whenever cooking dry foods (dried fish, bread, etc.) or a small amount of food, be sure to put a glass of water into the cooking compartment.
  • The turntable tray may become hot after operating, be careful when touching it.
• B. Aluminum foil should be avoided because it will disrupt cooking and may cause arcing. However, small pieces may be used to cover some parts of food to slow the cooking.
  • Any aluminum foil used should never be closer than 2.5 cm to any side wall of the oven.

TRIAL OPERATION

• After installation, the following sequences and results should be checked carefully.
• A. Put a container filled with water (about 1 liter) into the oven, and close the door tightly.
• B. Touch the STOP/CLEAR and the COOK TIME keys. “O” appears in the display window.
• C. Set cooking time for 10 minutes by touching “1” and then “O” three times. “1000” appears in the display window.
• D. Touch the START key.
  • Make sure the cavity light comes on. The unit will begin cooking and the display window will show the time counting down by seconds.
• E. After about 5 minutes, make sure the primary interlock switch, the secondary interlock switch, and the interlock monitor and oven lamp switch operate properly by opening and closing the door several times.
  • Touch the START key each time the door is closed.
• F. Continue operating the unit. Two short and a long beep sound signals are heard when the time is up. The unit will shut off automatically.
• G. Confirm the water is hot.
• Finally, measure the output power according to POWER OUTPUT MEASUREMENT.

FEATURES AND SPECIFICATIONS

A. The safety systems incorporated in this model are.

1. Primary interlock switch
2. Secondary interlock switch
3. Interlock monitor switch
4. Choke system
5. Magnetron thermostat
6. Oven cavity thermostat

• Note: This thermostat located in the oven cavity will open and stop the unit from operation only if a high temperature is reached, such as a fire created by overcooking food.
• B. Any one of 1 O power output levels ranging from 70W to 700W can be selected by the touch control and electronic computer system.
• C. Cooking time can be displayed on the digital readout.
• D. Three different cooking stages can be set. The oven remembers three cooking stages and changes from one cooking stage to another. This is made possible with the memory function of the microprocessor.

SPECIFICATIONS

• Rated Power Consumption ………………………………………….. 1050W maximum
• Output . …………………………………………………………………………………. 700W maximum (*IEC 705 Rating standard)
  • Adjustable ?OW through 700W, 1 0 steps
• Frequency ………………………………………………………………………….. 2,450 MHz ± 50 MHz
• Power Supply . …………………………………………………………………… 120V ± 12V AC, 60Hz
• Rated Current .. ………………………………………………………………… 9.3 Amp.
• Magnetron Cooling .. ………………………………………………………… Forced Air Cooling
• Microwave Stirring ….. ……………………………………………………… Turntable
• Rectification … ……………………………………………………………………. Rectification Voltage Doubler Half-Wave
• Door Sealing …. …………………………………………………………………. Choke System
• Safety Devices …. ……………………………………………………………. Thermostat: Open at 90 ·c ± 5 ·c Open at 75 ·c ± 5 ·c Fuse(15A) Primary Interlock Switch Secondary Interlock Switch Interlock Monitor
• Magnetron …. ………….. ……………………………………………………….. 2M213
• High Voltage Capacitor .. ……………………………………………….. Capacitor: 0.76μF, 1.9KV Ac
• High Voltage Diode . ………………………………………………………. 350mA, 9.0KV
• Cavity Lamp … …………………………………………………………………… 125V, 20W
• Timer … …………………………………………………………………………………. Digital, up to 99 mm. 99 sec. (in each cooking stage)
• Tray … …………………………………………………………………………………… Tempered Safety Glass
• Overall Dimensions ………………………………………………………… 19″ (W) x 1271a” (D) x 11 “(H)
• Oven Cavity Size . ……………………………………………………………. 11314″ (W) x 121 12” (D) x 751a” (H)
• Effective Capacity of Oven Cavity . …………………………… 0.7 Cu.ft.
• Accessories ….. ………………………………………………………………….. Use and Care Manual, Turntable, Rotating Ring Assembly.

SWITCH CHART

SWITCH MODE| PRIMARY INTERLOCK SWITCH| SECONDARY INTERLOCK SWITCH| INTERLOCK MONITOR SWITCH
---|---|---|---
CONDITIONS| COM NO| COM NO| COM NC
DOOR OPEN| 00| 00| 0
DOOR CLOSED| 0| 0| 00

NOTE: Use the above switch chart with the circuit diagram.

OVERALL CIRCUIT DIAGRAM

A. SCHEMATIC DIAGRAM

B. MATRIX CIRCUIT FOR TOUCH KEYBOARD

OPERATING PROCEDURES

A. OVEN CONTROL PANEL

NOTE: A “beep” sounds when you touch a “key” on the control panel, to indicate that you have entered a setting.

B. PANEL INSTRUCTIONS (Figure 5)

The entire operation is done by simple touch control pads.

1. Display Window

   • Numbers and letters explained in Figure 5 are shown in the display window (Vacuum Fluorescent Tube).
   • (a) The Time in six digits (12-hour indication): 00 Hour 00 Minute 00 Second.
   • (b) Cooking Time of Day in four digits 00 Minutes 00 Seconds.
   • (c) Power Control Level in two digits: P-00
   • (d) Each Indicator Light shows which function is set and involved in the course of cooking by turning itself on. Indicator Lights automatically go out upon completion of cooking.

2. QUICK TOUCH COOKING key

   • Pre-set timing is used for certain food items.
   • CLOCK Key
     Used in setting Time of Day.

3. COOK TIME Key

   • The TIME key is used to set the cooking time. Touch the TIME key and then the number keys that correspond to the desired cooking time. The remaining time is continuously displayed during cooking.

4. STOP/CLEAR Key

   • Used to stop the oven or clear all entries except CLOCK.

5. AUTO DEFROST key (DEFROST MEAT, POULTRY & FISH)

   • Used in setting AUTO DEFROST.

6. KITCHEN TIMER Key

7. POWER Key

   • Used to select the cooking power level.

8. QUICK ON Key

   • Used in setting cooking time quickly and directly.

9. START Key

   • Touch the START key after setting the desired cooking times etc. Also, touch the ST ART key to resume cooking after the cooking is temporarily stopped by opening the door. The key will not function unless the door is closed.

C. EASY USE CHART

1. CLOCK
2. Touch STOP/CLEAR.
3. Touch CLOCK.
4. Touch numbers for the correct time of day.
5. Touch CLOCK.
6. HI-POWER” COOKING
7. Touch STOP/CLEAR.
8. Touch COOK TIME.
9. Touch numbers for desired cooking time.
10. Touch START.
11. MULTI-STAGE” COOKING
12. Touch STOP/CLEAR.
13. Touch COOK TIME.
14. Touch numbers for cooking time.
15. Touch POWER.
16. Touch number for cooking power level.
17. Repeat steps 2-5 to set 2nd cooking stage.
18. Touch START.
19. CHILD LOCK
    • To set:
    • Touch STOP/CLEAR.
    • Touch “0” for more than 2 seconds.
    • To cancel:
    • Touch STOP/CLEAR.
    • Touch “0” for more than 2 seconds.
20. KITCHEN TIMER
21. Touch STOP/CLEAR.
22. Touch KITCHEN TIMER.
23. Touch the correct numbers for the time.
24. Touch START.
25. QUICK ON COOKING
26. Touch STOP/CLEAR.
27. Touch QUICK ON.
28. Touch the number for the desired minutes.
29. AUTO DEFROST
30. Touch STOP/CLEAR.
31. Touch AUTO DEFROST.

  * Three different defrosting levels are provided.
  * (MEAT, POULTRY, FISH)
3. Enter the weight of your food in decimal increments from 0.1 to 6.0 pounds.
4. Touch START
5. At beeping, turn food over by following the instructions in the manual.
6. After turning food over, touch START to resume defrosting.

8. QUICK TOUCH COOKING
9. Touch STOP/CLEAR.
10. Select one of the categories, and then touch the key.

  *  **NOTE:** Do not leave the oven unattended while popping corn.

PROCEDURE FOR MEASURING MICROWAVE ENERGY LEAKAGE

CAUTIONS

1. Be sure to check a microwave emission before servicing the oven and if the oven is operative before servicing.
2. The service personnel should inform the manufacturer, importer, or assembler of any certified oven unit found to have a microwave emission level over 5mW/cm.sq. and should repair any unit found to have excessive emission levels at no cost to the owner and should ascertain the cause of the excessive leakage. The service personnel should instruct the owner not to use the unit until the oven has been brought into compliance.
3. If the oven operates with the door open, the service personnel should;
   • Tell the user not to operate the oven
   • Contact the manufacturer and CDRH (Center for Devices and Radiological Health) immediately.
   • NOTE: Address on CDRH Office of Compliance (HFZ-312)
   • Center for Devices and Radiological Health 1390 Piccard Drive Rockville, Maryland 20850
4. The service personnel should check all surface and vent openings for microwave emission testing.
5. Check for microwave energy leakage after every servicing. The power density of the microwave radiation leakage emitted by the microwave oven should not exceed 1 mW/cm.sq.
   • And always start measuring of an unknown field to ensure the safety of operating personnel from radiation leakage.
   • NOTE: The standard is 5mW/cm.sq. while in the customer’s home. 1 mW/cm.sq. stated here is the manufacturer’s voluntary standard for units in the customer’s home.

EQUIPMENT

• Electromagnetic energy leakage monitor (NARDA 8100B, HOLADAY HI 1501)
• 600cc glass beaker
• Glass thermometer 1 oo0c

B. MEASURING MICROWAVE ENERGY LEAKAGE

1. Pour 275 ±15cc of 20 ±5 ·c water in a beaker which is graduated to 600 cc, and place the beaker in the center of the oven.
2. Set the energy leakage monitor to 2,450 MHz and use it following the manufacturer’s recommended test procedure to ensure correct results.
3. When measuring the leakage, always use the 2-inch (5 cm) spacer supplied with the probe.
4. Operate the oven at its maximum output.
5. Measure the microwave radiation using an electromagnetic radiation monitor by holding the probe perpendicular to the surface being measured. (See Figure 7)

C. MEASUREMENT WITH THE OUTER CASE REMOVED

1. When you replace the magnetron, measure for microwave energy leakage before the outer case is installed and after all necessary components are replaced or adjusted. Special care should be taken in measuring the following parts.
   • Around the magnetron
   • The waveguide
   • WARNING: AVOID CONTACTING ANY HIGH-VOLTAGE PARTS.

D. MEASUREMENT WITH A FULLY ASSEMBLED OVEN

1. After all components, including the outer panels, are fully assembled, measure for microwave energy leakage around the door viewing window, the exhaust opening, and air inlet openings.
2. Microwave energy leakage must not exceed the values prescribed below.
   • NOTES: Leakage with the outer panels removed – less than 5mW/cm.sq. Leakage for a fully assembled oven (Before the latch switch (primary) is interrupted) with the door in a slightly opened position – less than 1 mW/cm .sq.

E. NOTE WHEN MEASURING

1. Do not exceed meter full-scale deflection.
2. The test probe must be removed no faster than 1 inch/sec (2.5cm/sec) along the shaded area, otherwise, a false reading may result.
3. The test probe must be held with the grip portion of the handle. A false reading may result if the operator’s hand is between the handle and the probe.
4. When testing near a corner of the door, keep the probe perpendicular to the surface making sure the probe is horizontally along the oven surface, this may cause probe damage.

F. RECORD KEEPING AND NOTIFICATION AFTER MEASUREMENT

1. After adjustment and repair of any microwave energy interruption or microwave energy blocking device, record the measured values for future reference. Also, enter the information on the service invoice.
2. Should the microwave energy leakage not be more than 1 mW/cm.sq. after determining that all parts are in good condition, functioning properly and genuine replacement parts which are listed in this manual have been used.
3. At least once a year, have the electromagnetic energy leakage monitor checked for calibration by its manufacturer.

G. POWER OUTPUT MEASUREMENT

1. Fill the test beaker with 59 “F(15 ·q ~ 75 “F(24 ·q 1 liter tap water.
2. Stir the water in the beaker with a thermometer (“F or ·q and measure the temperature as T1.
3. Place the beaker on the center of the turntable.
4. Set for one (1) minute and three (3) seconds and operate the oven at high power.
   • NOTE: The additional three (3) seconds is to allow the magnetron to begin generating power.
5. When the heating is finished, stir the water again with a thermometer and measure the temperature of the water as T2.
6. Subtract T1 from T2, this will give you the temperature rise.
7. The microwave power output is within specification if the temperature rise is as shown below:
   | Temperature Rise
   ---|---
   Line Voltage| Degrees °F| Degrees ·c
   120 V| 11.7~17.1| 6.5 ~ 9.5
   108 V| Min. 10.6| Min. 5.9
8. Power output will be influenced by the line voltage of the power supply. Consequently, correct power output must be measured within 120V AC ± 1 Volt while the unit is operating.

DISASSEMBLY INSTRUCTIONS

IMPORTANT NOTES

• UNIT MUST BE DISCONNECTED FROM ELECTRICAL OUTLET WHEN MAKING REPAIRS, RE-PLACEMENTS, ADJUSTMENTS AND CONTINUITY CHECKS.
• WAIT AT LEAST ONE MINUTE, UNTIL THE HIGH-VOLTAGE CAPACITOR IN THE HIGH-VOLTAGE POWER SUPPLY HAS FULLY DISCHARGED.
• THE CAPACITOR SHOULD BE DISCHARGED BY USING INSULATED WIRE – I.E. TEST PROBE CONNECTED TO 10K-OHM RESISTOR IN SERIES TO GROUND.
• WHEN RECONNECTING THE WIRE LEADS TO ANY PART, MAKE SURE THE WIRING CONNECTIONS AND LEAD COLORS ARE CORRECTLY MATCHED ACCORDING TO THE OVERALL CIRCUIT DIAGRAM.
• ESPECIALLY SWITCHES AND HIGH-VOLTAGE CIRCUITS.

A. REMOVING OUT CASE (Figure 8)

1. Remove four screws from the rear section.
2. Remove one screw from the side section.
3. Push the outer case back about 1 inch (3cm).
4. Lift the case from the set.

B. REMOVING POWER AND CONTROL CIRCUIT BOARD(Figure 9)

1. Open the door.
2. Remove two screws, securing the circuit board.
3. Disconnect the lead wire from RELAY(RY2) on the circuit board.
4. Lift and pull out the control panel assembly carefully from the cavity.
5. Disconnect the lead wire from the connector(CN1) on the circuit board.
   • CAUTION: DISCHARGE THE HIGH-VOLTAGE CAPACITOR BEFORE SERVICING.
6. Pull down and remove the circuit board from the control panel.
7. Remove the F.P.C connector from the terminal socket.

C. DOOR GROSS ASSEMBLY REMOVAL

1. Open the door.
2. Remove the choke cover very carefully with a flat-blade screwdriver.
   • CAUTION : Be careful not to damage the door seal plate with the screwdriver.
3. Lift up and pull out the door.

NOTE:

1. After replacing the door, be sure to check that the primary switch, monitor switch, and secondary switch operate normally.
2. After replacing the door, check for microwave energy leakage with a survey meter. Microwave energy must be below the limit of 5 mW/cm.sq. {with a 275 ml water load)
3. When mounting the door assembly to the oven assembly, be sure to adjust the door assembly parallel to the chassis. Also, adjust so the door has no play between the inner door surface and oven frame assembly. If the door assembly is not mounted properly, microwaves may leak from the clearance between the door and the oven. ****

D. MAGNETRON REMOVAL

1. Disconnect the leadwire from the magnetron.
2. Carefully remove the mounting screws holding the magnetron and the waveguide.
3. Remove the magnetron ASSEMBLY until the tube is clear from the waveguide.

NOTE:

1. When removing the magnetron, make sure its dome does not hit any adjacent parts, or it may be damaged.
2. When replacing the magnetron, be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition.
3. After replacing the magnetron, check for microwave leakage with a survey meter around the magnetron. Microwave energy must be below the limit of 5 mW/cm2 (With a 275 ml. water load).
   • Make sure that the gasket is rigidly attached to the magnetron. To prevent microwave leakage, tighten the mounting screws properly, making sure there is no gap between the waveguide and the magnetron.

E. REMOVING THE TURNTABLE MOTO

1. Remove the turntable and rotating ring.
2. Lay the unit down on its back.
3. Remove the turntable motor cover.
   • The turntable base cover is easily removed by pinching the eight parts with a wire cutting.
4. Disconnect the leadwire from the turntable motor terminals.
5. Remove the screw securing the turntable motor to the oven cavity ASSEMBLY.
6. After repairing the motor, rotate the removed turntable motor cover.
7. Fit the turntable motor cover’s projecting part to the base plate slit.

NOTE:

1. Remove the wire lead from the turntable motor VERY CAREFULLY.
2. Be sure to grasp the connector, not the wires, when removing.

F. HIGH VOLTAGE TRANSFORMER REMOVAL

1. Discharge the high-voltage capacitor.
2. Disconnect the leadwire from the magnetron, high voltage transformer, and capacitor.
3. Remove the screw holding the high-voltage transformer to the baseplate.

G. FAN MOTOR ASSEMBLY REMOVAL

1. Discharge the high-voltage capacitor.
2. Disconnect the leadwire from the fan motor, noise filter, and high voltage capacitor.
3. Remove the two screws holding the suction guide ASSEMBLY to the oven cavity and remove the high voltage diode earth screw.
4. Remove the two screws holding the fan motor ASSEMBLY to the suction guide ASSEMBLY.

H. HIGH VOLTAGE CAPACITOR AND DIODE REMOVAL

1. Discharge the high-voltage capacitor.
2. Disconnect the leadwire from the high-voltage capacitor.
3. Remove the screw holding the high-voltage capacitor bracket.

I. INTERLOCK SYSTEM

1. INTERLOCK MECHANISM
   • The door lock mechanism is a device that has been specially designed to eliminate microwave activity when the door is opened during cooking and thus to prevent the danger resulting from microwave leakage.
2. MOUNTING OF THE PRIMARY/MONITOR/SECONDARY SWITCHES TO THE LATCH BOARD
3. INSTALLATION AND ADJUSTMENT OF THE LATCH BOARD TO THE OVEN ASSEMBLY

• Mount the latch board to the oven assembly.
• Adjust the latch board in the arrow direction so that the oven door will not have any play in it when the door is closed.
• Tighten the mounting screw.
• Check for play in the door by pushing the door release button. Door movement should be less than 0.5 mm. (1/64 inch)
• Don’t push the door release button while making this adjustment. Make sure that the latch moves smoothly after adjustment is completed and that the screws are tight.
• Make sure the primary, monitor, and secondary switches operate properly by following the continuity test procedure.

INTERLOCK CONTINUITY TEST

• WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION EMISSION, REPLACE ONLY WITH IDENTICAL REPLACEMENT PARTS.
• TYPE NO. SZM-V 16-FA-63 OR VP-533A-OF FOR PRIMARY SWITCH
• TYPE NO. SZM-V 16-FA-62 OR VP-532A-OF FOR MONITOR SWITCH
• TYPE NO. SZM-V 16-FA-63 OR VP-533A-OF FOR SECONDARY SWITCH

A. PRIMARY INTERLOCK SWITCH TEST

• When the door release button is depressed slowly with the door closed, an audible click should be heard at the same time or successively at intervals.
• When the button is released slowly, the latches should activate the switches with an audible click.
• If the latches do not activate the switches when the door is closed, the switches should be adjusted under the adjustment procedure. Disconnect the wire lead from the primary switch.
• Connect the ohmmeter leads to the common (COM) and normally open (NO) terminal of the switch. The meter should indicate an open circuit in the door open condition.
• When the door is closed, the meter should indicate a closed circuit.
• When the primary switch operation is abnormal, make the necessary adjustments or replace the switch only with the same type of switch.

B. SECONDARY INTERLOCK SWITCH TEST

• Disconnect the wire lead from the secondary switch.
• Connect the ohmmeter leads to the common (COM) and normally open (NO) terminals of the switch. The meter should indicate an open circuit in the door open condition.
• When the door is closed, the meter should indicate a closed circuit. When the secondary switch operation is abnormal, make the necessary adjustments or replace the switch only with the same type of switch.

C. MONITOR SWITCH TEST

• Disconnect the wire lead from the monitor switch.
• Connect the ohmmeter leads to the common (COM) and normally closed (NC) terminals of the switch. The meter should indicate a closed circuit in the door open condition.
• When the door is closed, the meter should indicate an open circuit. When the monitor switch operation is abnormal, replace it with the same type of switch.
• NOTE: After repairing the door or the interlock system, it is necessary to do this continuity test before operating the oven.

TEST AND CHECKOUT PROCEDURES, AND TROUBLESHOOTING

CAUTIONS

1. DISCONNECT THE POWER SUPPLY CORD FROM THE OUTLET WHENEVER REMOVING THE OUTER CASE FROM THE UNIT. PROCEED WITH THE TEST ONLY AFTER DISCHARGING THE HIGH-VOLTAGE CAPACITOR AND REMOVING THE WIRE LEADS FROM THE PRIMARY WINDING OF THE HIGH-VOLTAGE TRANSFORMER.
2. ALL OPERATIONAL CHECKS WITH MICROWAVE ENERGY MUST BE DONE WITH A LOAD (1 LITER OF WATER IN CONTAINER) IN THE OVEN.

A. TEST PROCEDURES

B. CHECKOUT PROCEDURES

CHECKOUT PROCEDURES FOR FUSE BLOWING

CAUTION: REPLACE THE BLOWN FUSE WITH A 15 AMPERE FUSE.

the primary interlock, secondary interlock switches, and/or the interlock monitor switch.
The fuse blows immediately after the door is opened.
The fuse blows when the door is closed and the START key is touched.| Malfunction of the high voltage transformer; the high voltage capacitor including the diode, the magnetron, the blower motor, or the circuit board.

NOTES:

• If the fuse is blown by an improper switch operation, replace the defective switches and the fuse at the same time. After replacing the defective switches with new ones, make sure that they are correctly connected.
• Check for microwave energy leakage according to “1. ADJUSTMENT PROCEDURES” on page 3, when the primary interlock, secondary interlock switches, and/or the interlock monitor switches are adjusted or replaced.

CHECKOUT PROCEDURES FOR RELAY

CHECKOUT PROCEDURES FOR CIRCUIT BOARD The following symptoms indicate a defective circuit board.

1. The start function fails to operate but the high voltage Systems, the interlock switches, the door sensing, and the relay check are good.
2. The unit with a normal relay continuously operates.
3. The buzzer does not sound or continues to sound.
4. Some segments of one or more digits do not light up, or they continue to light up, or segments light when they should not.
5. Wrong figures appear.
6. The figures of all digits flicker.
7. Some of the indicators do not light up.
8.  The clock does not keep time properly.

NOTE: A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON.

C. TROUBLESHOOTING

• WHEN YOU GET A COMPLAINT FROM YOUR CUSTOMER, EVALUATE THE COMPLAINT CAREFULLY.
• IF THE FOLLOWING SYMPTOMS APPLY, PLEASE INSTRUCT THE CUSTOMER IN THE PROPER USE OF THE MICROWAVE OVEN. THIS CAN ELIMINATE AN UNNECESSARY SERVICE CALL.

CAUTIONS

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 of the high voltage transformer, disconnect one lead wire from these parts and then check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter.
5. Do not touch any part of the circuit on the PCB since static electric discharge may damage this control panel.
   • Always touch yourself to the ground while working on this panel to discharge any static charge built up in your body. (Micom model only)

(TROUBLE 1) The following visual conditions indicate a probable defective control circuit.

1. Incomplete segments.
   • Segment missing.
   • Partial segment missing.
   • Digit flickering (NOTE: Slight flickering is normal.)
2. The colon does not turn on or blink.
3. A distinct change in the brightness of one or more numbers in the display.
4. One or more digits in the display are not lit.
5. The display indicates a number different from one touched, for example, keys in 5 and 3 appear in the display.
6. Specific numbers (for example 7 or 9) will not display when key pad is touched.
7. The display does not count down with time blinking or up with clock operation.
8. The display jumps in time while counting down.
9. Display counts down too fast while cooking.
10. Each indicator light does not turn on after setting the cooking cycle.
11. The display time of day does not reappear when cooking is finished.

• (TROUBLE 2} The Oven does not operate at all, the Display window does not display any figures, and no input is accepted.
• NOTE: All these switches must be replaced at the same time. Refer to.
• (TROUBLE 3) The display shows all figures set, but the oven does not start cooking while desired program times are set and the START pad is touched.
• (TROUBLE 4) The oven seems to be operating but little heat is produced in the oven load.
• NOTE : Simple test of power output conducted by heating one liter of water for one minute. if available.
• A minimum 8.5 °C temperature rise is a normal condition.
• (TROUBLE 5) No microwave oscillation even though the oven lamp and fan motor run.
• (Display operates properly)

NOTE :

• Make sure the wire leads correct position.
• When Removing the wire leads from the parts, be sure to grasp the connector, not the wires.
• When removing the magnetron, be sure to install the magnetron gasket in the correct position and good condition.

References

• Repair Your Grill: Shop Replacement Parts for 24,880 Models
• Kenmore Microwave Parts - Select From 532 Models

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