Kenmore 721. 62622 Service Manual page 30

(2) CHECKOUT PROCEDURES FOR RELAY.
Oven lamp turn on without touching START key
NO
GOOD
- PROBLEM (A) -
when the door is closed.
YES
Remove the mate connector of I/O
CON from the circuit board.
Does the unit still operate?
NO
Replace the
circuit board
YES
Defective
RELAY1
Replace
RELAY1
Oven lamp turn on When the door is closed and
START key is touched.
YES
GOOD
Replace the
circuit board
7-19
- PROBLEM (B) -
NO
Measure the voltage at pin NO.
35 of U01
Voltage reading: -5 Vdc
NO
Defective
RELAY1 or poor
connection of
RELAY1 or correct
the connection.
YES
RELAY1
Replace