Kenmore 65002 Built in Microwave Oven Instruction Manual

: August 10, 2024
: Kenmore

Kenmore 65002 Built-in Microwave Oven

Product Information

The Kenmore 65002 Microwave is a versatile kitchen appliance designed to simplify your cooking experience. With a sleek design and user-friendly features, it offers efficient cooking solutions for your everyday needs.

Product Usage Instructions

Installation:
Place the microwave on a flat, stable surface with proper ventilation. Ensure there is enough space around the microwave for air circulation.

Power Connection:
Plug the microwave into a grounded outlet with the appropriate voltage. Avoid using extension cords or adapters to prevent electrical hazards.

Basic Operations:
Refer to the user manual for specific instructions on setting the time, adjusting power levels, and selecting cooking modes. The control panel allows easy navigation through different functions.

Cooking Tips:
Experiment with different cooking times and power settings to achieve the desired results. Use microwave-safe cookware and cover food items to retain moisture during cooking.

CAUTION
WARNING TO SERVICE TECHNICIANS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

Do not operate or allow the oven to be operated with the door open.
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.
Before turning on 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.
Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired adjusted by procedures described in this manual before the oven is released to the owner.
A Microwave leakage check to verify compliance with the Federal performance standard should be performed on each oven prior to release to the owner.
- Proper operation of the microwave ovens requires that the magnetron be assembled to the wave guide 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.
ONL V AUTHORIZED SERVICE PERSONNEL SHOULD MAKE THIS ADJUSTMENT.
The Interlock Monitor and Primary Interlock Switch acts 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 Switch, 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.

Set the microwave oven on its side so that you can see the latch board and the switches, as shown in Figure 1-a.
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 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 : To correct sequence of the Primary Interlock Switch, Secondary Interlock Switch and the 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 AND SWITCH CLOSINGS
Loosen the two screws holding the plastic latch board as shown.
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
Open the oven door slowly. Watch the door latch, the Primary Switch. Release 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.
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. .
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
Using a survey meter, make sure the microwave energy is below 5 mW/cm.sq.

PRECAUTIONS ON INSTALLATION

(Figure 2)

Plug the power supply cord into a 120 V AC, 60 Hz, single-phase power source with a capacity of at least 15 amperes.
Since the unit weights about 26 lbs, be sure to place it on a sturdy and flat surface.
Avoid placing the unit in a location where there is direct heat or splashing water.
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

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.
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.

Put a container filled with water (about 1 liter) into the oven, and close the door tightly.
Touch the STOP/CLEAR and the COOK TIME keys. “0” appears in the display window.
Set cooking time for 10 minutes by touching “1” and then “0” three times. “1000” appears in the display window.
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.
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.
Continue operating the unit. Two short and a long beep sound signal is heard when the time is up. The unit will shut off automatically.
Confirm the water is hot.
Finally, measure the output power according to “POWER OUTPUT MEASUREMENT” on page 12.

FEATURES

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 on 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.)
Any one of 10 power output levels ranging 70W to 700W can be selected by the touch control and electronic computer system.
Cooking time can be displayed on the digital readout.
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 ·································950W maximum
Output ····························································· 700W maximum (*IEC 60705 Rat ing standard) Adjustable 70W through 700W, 10 steps
Fre quency ························································ 2450 MHz± 50 MHz
Power Supply ···················································120V ± 12V AC, 60Hz
Rate d Current •··················································9.0 Amp.
Magnetron Cooling ············································ Forced Air Cooling
Microwave Stirring·••••••••••••••••••••••••••••••••••••••••••••• T urntable
Rectification · · ·· ··· ·· ··· · ·· ·· · ··· ·· ··· ·· · ·· · ·· ··· ·· ··· · · · ·· · ······Rectific ation Voltage Doubler Half -Wave
Door Sealing ·····················································Choke System
Safety Devices · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·······Thermostat: Open at 90°C ± 5°C Fuse(15A) Primary Interlock Switch Secondary Interlock Switch Interlock Monitor
Magnetron ························································2M213 – 09B
High Voltage Capacitor •·····································Capacitor: 0.76μF, 1.9 KV Ac
High Voltage Diode ···········································350mA, 9.0 KV
Cavity Lamp ····················································· 125 V, 20 W
Timer ·······························································D igital, up to 99 mim. 99 sec. (in each cooking stage)
Tray ································································· Tempered Safety Glass
Overall Dimensions • • •· •· • •·· •· •·· •· • •· • •· •·· •· •·· • •· •· • •·· •· • 177/s”(W) x 103/16″(D) x 13″(H)
Oven Cavity Size ·············································· 12¾”(W) X 715/15″(D) X 119/16″(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| ∞| ∞| 0
DOOR CLOSED| 0| 0| ∞

NOTE : Use the above switch chart with circuit diagram on page 6.

OVERALL CIRCUIT DIAGRAM

*(I). SCHEMATIC DIAGRAM Check the Model No.**

IMPORTANT SAFETY NOTE : THE COMPONENTS IN SHADED AREAS ON THIS SCHEMATIC DIAGRAM IN CORPORATE SPECIAL FETURES IMPORTANT FOR PROTECTION FROM MICROWAVE RADIATION, FIRE, ELECTRICAL SHOCK, AND OTHER HAZARDS. WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURER’S SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SHADED AREAS OF THE SCHEMATIC DIAGRAM.

NOTICE : SINCE THIS A BASIC SCHEMATIC DIAGRAM, THE VAL UES OF COMPONENTS AND SOME PARTIAL CONNECT IONS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

*(II}. SCHEMATIC DIAGRAM Check the Model No. (ADD Noise filter}**

IMPORTANT SAFETY NOTE : THE COMPONENTS IN SHADED AREAS ON THIS SCHEMATIC DIAGRAM IN CORPORATE SPECIAL FETURES IMPORTANT FOR PROTECTION FROM MICROWAVE RADIATION, FIRE, ELECTRICAL SHOCK, AND OTHER HAZARDS. WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURERS SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SHADED AREAS OF THE SCHEMATIC DIAGRAM.

NOTICE : SINCE THIS A BASIC SCHEMATIC DIAGRAM, THE VAL UES OF COMPONENTS AND SOME PARTIAL CONNECT IONS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

MATRIX CIRCUIT FOR TOUCH KEYBOARD

OPERATING PROCEDURES

OVEN CONTROL PANEL

PANEL INSTRUCTIONS (Figure 5)
The entire operation is done by simple touch control pads.

Display
The Display includes a clock and indicators that tell you time of day, cooking time setting, and cooking functions selected.
Quick Touch
This pad allows you to cook most of your favorite foods without having to select cooking times and power levels.
Clock
Touch this pad to enter the time of day.
Kitchen Timer
Touch this pad to use your microwave oven as a kitchen timer.
Number Pads
Touch Number Pads to enter cooking time, power level, quantities, or weights.
Time
Touch this pad to set a cooking time.
Stop/Clear
Touch this pad to stop the oven or clear entries.
Add Minute
Touch this pad to cook at 100% cook power for 1 minute to 99 minute 59 seconds.
Start
Touch this pad to start all entries (except the Quick Touch, Auto Defrost, Auto Cook and Add Minute function which start automatically) and to turn Child Lock on or off.
Power
Touch this pad to set a cooking power.
Auto Defrost
This pad is an accurate defrosting method for frozen meat, poultry and fish up to 6.0 lbs or 4.0 kgs

EASY USE CHART

CLOCK
Touch STOP/CLEAR.
Touch CLOCK.
Touch numbers for correct time of day.
Touch CLOCK.
“HI-POWER” COOKING
Touch STOP/CLEAR.
Touch TIME.
Touch numbers for desired cooking time.
Touch START.
“MULTI-STAGE” COOKING
Touch STOP/CLEAR.
Touch TIME.
Touch numbers for cooking time.
Touch POWER.
Touch number for cooking power level.
Repeat steps 2-5 to set 2nd cooking stage.
Touch START.
CHILD LOCK
- To set:
1. Touch STOP/CLEAR.
2. Touch “O” more than 2 seconds.
- To cancel:
1. Touch STOP/CLEAR.
2. Touch “O” more than 2 seconds.
AUTO DEFROST
Touch STOP/CLEAR.
Touch AUTO DEFROST.
Three different defrosting levels are provided. (MEAT, POULTRY, FISH)
Enter the weight of your food in decimal increments from 0.1 to 6.0 pounds.
Touch START
At beeping, turn food over by following the instructions in the manual.
After turning food over, touch START to resume defrosting.
QUICK TOUCH COOKING
Touch STOP/CLEAR.
Select one of categories, and then touch the key.
NOTE : Do not leave oven unattended while popping corn.

PROCEDURE FOR MEASURING MICROWAVE ENERGY LEAKAGE

CAUTIONS

Be sure to check a microwave emission prior to servicing the oven if the oven is operative prior to servicing.
The service personnel should inform the manufacturer, importer, or assembler of any certified oven unit found to have a microwave emission level in excess of 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.
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
The service personnel should check all surface and vent openings for microwave emission testing.
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 assure safety for 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 manufacturer’s own voluntary standard for units in customer’s home.

EQUIPMENT

Electromagnetic energy leakage monitor (NARDA 8100B, HOLADAY HI 1501)
600cc glass beaker
Glass thermometer 100°C

MEASURING MICROWAVE ENERGY LEAKAGE

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.
Set the energy leakage monitor to 2450 MHz and use it following the manufacturer’s recommended test procedure to assure correct result.
When measuring the leakage, always use the 2 inch (5 cm) spacer supplied with the probe.
Operate the oven at its maximum output.
Measure the microwave radiation using and electromagnetic radiation monitor by holding the probe perpendicular to the surface being measured. (See Figure 7)

MEASUREMENT WITH THE OUTER CASE REMOVED

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.

MEASUREMENT WITH A FULLY ASSEMBLED OVEN

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.
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.

NOTE WHEN MEASURING

Do not exceed meter full scale deflection.
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.
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.
When testing near a corner of the door, keep the probe perpendicular to the surface making sure the probe horizontally along the oven surface, this may possibly cause probe damage.

RECORD KEEPING AND NOTIFICATION AFTER MEASUREMENT

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.
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.
At least once a year, have the electromagnetic energy leakage monitor checked for calibration by its manufacturer.

POWER OUTPUT MEASUREMENT

Fill the test beaker with 59 ° F(15 °C) – 75 ° F(24 °C) 1 liter tap water.
Stir the water in the beaker with thermometer (° F or °C) and measure temperature as T1.
Place the beaker on the center of turntable.
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.
When the heating is finished, stir the water again with thermometer and measure the temperature of water as T2.
Subtract T1 from T2, this will give you the temperature rise .
The microwave power output is within specification, if the temperature rise is as shown below:
Line Voltage| Temperature Rise|
---|---|---
| Degrees °F| Degrees °C
120 V| 11.7 ~ 17.1| 6.5 ~ 9.5
108 V| Min. 10.6| Min. 5.9
Power output will be influenced by line voltage of power supply. Consequently, correct power output must be measured within 120V AC ± 1 Volt while 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 ANDHIGH VOLTAGE CIRCUIT.)

REMOVING OUT CASE (Figures 8)

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

REMOVING POWER AND CONTROL CIRCUIT BOARD (Figure 9)

Open the door.
Remove one screw from the cavity.
Disconnect the lead wire from RELA Y(RY2) on the circuit board.
Lift up and pull out control panel assembly carefully from the cavity.
Disconnect the lead wire from connector(CN 1) on the circuit board.
Remove two screws, securing the circuit board.
CAUTION : DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE SERVICING.
Pull down and remove the circuit board from the control panel.
Remove the F.P.C connector from the terminal socket.

DOOR GROSS ASSEMBLY REMOVAL

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

NOTE :

After replacing the door, be sure to check that the primary switch, monitor switch, and secondary switch operate normally.
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)
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.

MAGNETRON REMOVAL

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

NOTE

When removing the magnetron, make sure its dome does not hit any adjacent parts, or it may be damaged.
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.
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 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.

REMOVING THE TURNTABLE MOTOR

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

NOTE

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

HIGH VOLTAGE TRANSFORMER REMOVAL

Discharge the high voltage capacitor.
Disconnect the leadwire from magnetron, high voltage transformer, and capacitor.
Remove the screw holding the high voltage transformer lo the baseplate.

FAN MOTOR ASSEMBLY REMOVAL

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

HIGH VOLTAGE CAPACITOR AND DIODE REMOVAL

Discharge the high voltage capacitor.
Disconnect the leadwire from high voltage capacitor.
Remove the screw holding the high voltage capacitor bracket.

INTERLOCK SYSTEM

INTERLOCK MECHANISM
The door lock mechanism is a device which has been specially designed to eliminate completely microwave activity when the door is opened during cooking and thus to prevent the danger resulting from the microwave leakage.
MOUNTING OF THE PRIMARY/MONITOR/SECONDARY SWITCHES TO THE LATCH BOARD
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 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

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 a adjusted in accordance with 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 adjustment or replace the switch only with the same type of switch.

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 a open circuit in the door open condition.
When the door is closed, meter should indicate an closed circuit. When the secondary switch operation is abnormal, make the necessary adjustment or replace the switch only with the same type of switch.

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 closed circuit in the door open condition.
When the door is closed, meter should indicate an open circuit. When the monitor switch operation is abnormal, replace 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

CAUTIONS

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.
ALL OPERATIONAL CHECKS WITH MICROWAVE ENERGY MUST BE DONE WITH A LOAD (1 LITER OF WATER IN CONTAINER) IN THE OVEN.

TEST PROCEDURES

CHECKOUT PROCEDURES

CHECKOUT PROCEDURES FOR FUSE BLOWING

CAUTION : REPLACE BLOWN FUSE WITH 15 AMPERE FUSE.

PROBLEMS	CAUSES
Fuse blows immediately after the door is closed.	Improper operation of the

primary interlock, secondary interlock switches and/or the interlock monitor switch.
Fuse blows immediately after the door is opened.| Improper operation of the primary interlock, secondary interlock switches and/or the interlock monitor switch.
Fuse blows when the door is closed and 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.

The start function fails to operate but the high voltage Systems, the interlock switches, the door sensing and the relay check good.
The unit with a normal relay continuously operates.
The buzzer does not sound or continues to sound.

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

Check grounding before checking for trouble.
Be careful of the high voltage circuit.
Discharge the high voltage capacitor.
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.
Do not touch any part of the circuit on the PCB since static electric discharge may damage this control panel. Always touch yourself to ground while working on this panel to discharge any static charge built up in your body. (Micom model only)

The following visual conditions indicate a probable defective control circuit

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

Oven does not operate at all, 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 page 17, 18

Display shows all figures set, but oven does not start cooking while desired program times are set and ST ART pad is touched

Oven seems to be operation but little heat is produced in oven load

NOTE : Simple test of power output-conducted by heating one liter water for one min. if available. Minimum 8.5°C temperature rise is normal condition.

No microwave oscillation even though 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 in good condition.

EXPLODED VIEW

INTRODUCTION
Model : 721.65002400 721.65002401

DOOR PARTS

CONTROLLER PARTS

OVEN CAVITY PARTS

LATCH BOARD PARTS

INTERIOR PARTS (I)
Model : 721.65002400

Check the rating label of Model and order SVC parts according to the Model No.

INTERIOR PARTS (11)
Model : 721.65002401

Check the rating label of Model and order SVC parts according to the Model No.

BASE PLATE PARTS

Frequently Asked Questions

Q: How do I clean the microwave?
A: Wipe the interior with a damp cloth and mild detergent. Remove any food splatters or stains to maintain hygiene.

Q: Can I use metal utensils in the microwave?
A: No, avoid using metal utensils as they can cause sparks and damage the microwave.

Q: What should I do if the microwave displays an error code?
A: Refer to the user manual to identify the error code and follow the troubleshooting steps provided. If the issue persists, contact customer support for assistance.