Electrolux MCD2660E Service Manual page 22

PROCEDURE
LETTER
H BLOWN FUSE F8A (F2)
I NOISE FILTER TEST
J MOTOR WINDING TEST
SOI 03.06 FV
TEST PROCEDURES
CARRY OUT 3D CHECKS
If the fuse F8A (F2) is blown when the door is opened, check the primary
latch switch, monitor switch and monitor resistor.
If the fuse F8A (F2) is blown by incorrect door switching replace the
defective switch(es) and the fuse F8A (F2).
CARRY OUT 4R CHECKS
CAUTION: Only replace fuse with the correct value replacement.
CARRY OUT 3D CHECKS
Disconnect the leads from the
terminals of the noise filter.
Using an ohmmeter, check between
the terminals as described in the
following table.
MEASURING POINTS
Between N and L
Between terminal N and WHITE
Between terminal L and RED
If Incorrect readings are obtained, replace the noise filter unit.
CARRY OUT 4R CHECKS
CARRY OUT 3D CHECKS.
Disconnect the leads from the motor. Using an ohmmeter, check the
resistance between the two terminals as described in the table below.
Motors
Fan motor
Turntable motor
If incorrect readings are obtained, replace the motor.
CARRY OUT 4R CHECKS.
LIVE TEST FOR MOTOR WINDING
CAUTION: The following procedure requires the oven to be connected
to the supply and should only be used if the relevant "cold"
checks for the motor under test are inconclusive.
1. CARRY OUT 3D CHECKS.
2. Disconnect the leads from the primary of the high voltage transformer. Make
sure that the leads remain isolated from other oven components and
chassis (Use insulation tape if necessary).
COMPONENT TEST
INDICATION OF OHMMETER
Table: Resistance of Motor
Approximately 290
Approximately 12 - 15
22/38
Approx. 680 kΩ
Short circuit
Short circuit
Resistance
Ω
kΩ
599 36 78-45