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(2) CHECKOUT PROCEDURES FOR RELAY.
- PROBLEM (A) -
Oven lamp turn on without touching START key
when the door is closed.
Remove the mate connector of I/O
CON from the circuit board.
Does the unit still operate?
Replace the
circuit board
Replace
RELAY1
NO
NO
YES
YES
GOOD
Defective
RELAY1
- PROBLEM (B) -
Oven lamp turn on When the door is closed and
START key is touched.
Measure the voltage at pin NO.
35 of U01
Voltage reading: -5 Vdc
Replace the
circuit board
Defective
RELAY1 or poor
connection of
RELAY1
Replace
RELAY1 or correct
the connection.
YES
NO
NO
YES
GOOD