Troubleshooting and Error Codes
3-1
If the fuse is blown by the Interlock Monitor Switch: Replace all of the following at the same time: Primary,
door sensing switch and power relay, as well as the Interlock Monitor Switch. The correct adjustment
of these switches is described elsewhere in this manual. Make sure the fuse has the correct rating for the
particular model being repaired.
WHENEVER TROUBLESHOOTING IS PERFORMED WITH THE POWER SUPPLY CORD DISCONNECTED. IT
MAY IN, SOME CASES, BE NECESSARY TO CONNECT THE POWER SUPPLY CORD AFTER THE OUTER
CASE HAS BEEN REMOVED, IN THIS EVENT:
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60 seconds and then short-circuit the connection of the
high-voltage capacitor (that is the connecting lead of the high-voltage rectifier) against the chassis
with the use of an insulated screwdriver.
4. Disconnect the leads to the primary of the power transformer.
5. Ensure leads remain isolated from other components and oven chassis by using insulation tape.
6. After that procedure, reconnect the power supply cord.
WHEN THE TESTING IS COMPLETED:
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60 seconds and then short-circuit the connection of the
high-voltage capacitor (that is the connecting lead of the high-voltage rectifier) against the chassis
with the use of an insulated screwdriver.
4. Reconnect the leads to the primary of the power transformer.
5. Reinstall the outer case (cabinet).
6. Reconnect the power supply cord after the outer case is installed.
7. 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 cold water on the oven turntable, close the door and set the power to HIGH and then set the microwave timer for
two (2) minutes. When the two minutes has elapsed (timer at zero) carefully check that the water is now hot. If the
water remains cold carry out Before Servicing procedure and re-examine the connections to the component being
tested.
When all service work is completed and the oven is fully assembled, the microwave power output should be checked
and a microwave leakage test should be carried out.
Troubleshooting Guide
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. To do otherwise may result in a false reading or damage
to your meter.
Do not touch any part of the circuit or the control circuit board, since static
discharge may damage it.
Always touch ground while working on it to discharge any static charge built up.
Содержание E30MH65GPSA
Страница 2: ......
Страница 32: ...Component Teardown and Testing 4 14 Notes ...
Страница 33: ...Wiring Diagrams 5 1 Wiring Diagram ...
Страница 34: ...Wiring Diagrams 5 2 Notes ...
Страница 38: ...Parts List 6 4 Notes ...