Heavy Frost On Evaporator - GE ZIS360NM Technical Service Manual

Heavy Frost on Evaporator

Always check door ajar,
customer usage -
numerous door
openings, etc.
Disconnect power. Unplug blue connector
Verify thermistors are within
from main board. Measure between red Check wiring
proper range using
wire on connector and orange (neutral) connections. If
YES thermistor values chart. NO
wire on main board J7, pin 9. OK, replace
thermistor.
Is resistance within range?
Are there approximately 37 ohms?
YES
NO
Replace main
board.
Check wiring harness,
defrost heater, and
defrost overtemperature
thermostat.
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