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(2) CHECKOUT PROCEDURES FOR RELAY.
Vent fan motor and oven lamp turn on without touching
START key when the door is closed.
NO
GOOD
- PROBLEM (A) -
Remove the mate connector of I/O
CON from the circuit board.
Does the unit still operate?
NO
Replace the
circuit board
YES
YES
Defective
RELAY7
Replace
RELAY7
Vent fan motor and oven lamp turn on When the door
is closed and START key is touched.
YES
GOOD
7-19
- PROBLEM (B) -
Measure the voltage at pin NO.
4, 5, 6 of U01
Voltage reading: 0 Vdc
NO
Replace the
circuit board
RELAY7 or correct
NO
YES
Defective
RELAY7 or poor
connection of
RELAY7
Replace
the connection.
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