GE ZIS480NM 用户手册

– 60 –

Disconnect power.  Unplug blue connector

from main board.  Measure between red

wire on connector and orange (neutral)

wire on main board J7, pin 9.

Are there approximately 37 ohms?

Always check door ajar,

customer usage -

numerous door

openings, etc.

Check wiring harness,

defrost heater, and

 defrost overtemperature

thermostat.

NO

Verify thermistors are within

proper range using

thermistor values chart.

Is resistance within range?

Replace main

board.

Check wiring

connections.  If

OK, replace

thermistor.

NO

YES

YES