Electrolux FGMO205KFA Service Manual page 23

Procedure
Letter
HIGH VOLTAGE CAPACITOR TEST
D
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1)
4. If the capacitor is open, no high voltage will be available to the magnetron. Disconnect input
leads and check for short or open between the terminals using an ohmmeter.
Checking with a high ohm scale, if the high voltage capacitor is normal, the meter will indicate
continuity for a short time and should indicate an open circuit once the capacitor is charged. If
the above is not the case, check the capacitor with an ohmmeter to see if it is shorted between
either of the terminals and case. If it is shorted, replace the capacitor.
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
E
CAVITY TEMPERATURE FUSE TEST
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1)
4. A continuity check across the cavity temperature fuse terminals should indicate a closed circuit
unless the temperature of the cavity temperature fuse reaches approximately 302°F(150°C). An
open cavity temperature fuse indicates overheating of the oven, exchange cavity temperature
fuse and check inside of oven cavity and for improper setting of cooking time or operation of
control unit. Check for restricted air flow through the vent holes of the oven cavity, especially
the cooling fan and air guide.
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
MAGNETRON TEMPERATURE FUSE TEST
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1)
4. A continuity check across the magnetron temperature fuse terminals should indicate a closed
circuit unless the temperature of the magnetron temperature fuse reaches approximately
302°F(150°C). An open magnetron temperature fuse indicates overheating of the magnetron.
Check for restricted air flow to the magnetron, especially the cooling fan air guide.
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
CAUTION
If the temperature fuse indicates an open circuit at room temperature, replace
temperature fuse.
Section 3 Troubleshooting and Testing
Component Test
3-5