Kenmore 721.626444 Checkout Procedures For Relay Problem A, when the door is closed, Good, of U01

Models: 721.626444 721.805994 721.626494 721.626424 721.626434 721.805924 721.805934 721.805944

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(2) CHECKOUT PROCEDURES FOR RELAY.

(2) CHECKOUT PROCEDURES FOR RELAY.

- PROBLEM (A) -

Oven lamp turn on without touching START key

when the door is closed.

NO

YES

GOOD

Remove the mate connector of I/O CON from the circuit board.

Does the unit still operate?

NO

YES

Replace the circuit board

Defective

RELAY1

Replace

RELAY1

- PROBLEM (B) -

Oven lamp turn on When the door is closed and

START key is touched.

 

YES

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

GOOD

Measure the voltage at pin NO.

35 of U01

 

 

 

 

 

 

 

 

Voltage reading: -5 Vdc

 

 

 

 

 

 

 

 

 

NO

 

YES

 

 

 

 

 

 

Replace the circuit board

Defective

RELAY1 or poor

connection of

RELAY1

Replace

RELAY1 or correct

the connection.

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Page 31
Image 31
Kenmore 721.626444 Checkout Procedures For Relay Problem A, Oven lamp turn on without touching START key, Good, of U01