Electrolux FGMO205KFA Service Manual page 27

Procedure
Letter
KEY UNIT TEST
I
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. Using an ohmmeter and referring to the key unit matrix indicated on the control unit circuit,
check the circuit between the pins of the key unit that correspond to the STOP/CLEAR pad.
When the pad is pressed, the ohmmeter should indicate short circuit. When the pad is released,
the ohmmeter should indicate open circuit. If incorrect readings are obtained, the key unit is
faulty and must be replaced. About the other pads, the above method may be used.
5. Reconnect all leads removed from components during testing.
6. Re-install the outer case (cabinet).
7. Reconnect the power supply cord.
8. Run the oven and check all functions.
Section 3 Troubleshooting and Testing
Component Test
3-9