Electrolux EI24MO45IBA, Technical & Service Manual

Page: 23 / 44

Troubleshooting and Testing
3-5
Procedure
Letter
E
Component Test
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 the 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.
C/T 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 C/T fuse terminals should indicate a closed circuit unless the tem-
perature of the cavity temperature fuse reaches approximately 302°F(150°C). An open cavity
temperature fuse indicates overheating of the oven, exchange the 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. If the C/T fuse is blown when the door is opened, check the secondary interlock relay, primary
interlock switch and monitor switch according to the “TEST PROCEDURE” for those switches
before replacing the blown monitor fuse.
If the C/T fuse is blown by improper switch operation, the C/T fuse and monitor switch must be
replaced with “C/T fuse and monitor switch assembly” part number FFS-BA03-59/KIT, even if
the monitor switch operates normally. The C/T fuse and monitor switch assembly is comprised
of a 20 ampere fuse and switch.
6. Reconnect all leads removed from components during testing.
7. Reinstall the outer case (cabinet).
8. Reconnect the power supply cord after the outer case is installed.
9. Run the oven and check all functions.
If the temperature fuse indicates an open circuit at room temperature, replace temperature
fuse.
Before replacing a blown C/T fuse, test the secondary interlock relay, primary interlock
switch, door sensing switch and monitor switch for proper operation.