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40
Refrigerator Service ManualN6XX/N8XX Models
!
WARNING:
Do not operate the
refrigerator if the cooling unit
is leaking or a leak is
suspected.
Cooling detected?
Replace cooling unit.
NO
YES
Test test cooling unit
performance.
Recheck cooling unit for leaks.
Replace cooling unit.
YES
From page 40.
NO
The back of the freezer plate
should be cool after 3-4 hours of
continuous operation.
YES
Unit is operating normally.
Repair/replace door as
required.
YES
NO
Check condition of door gaskets.
Check thermistor and
power board operation.
NO
Temperatures given below are based on 90 °F ambient
temperature, correct ventilation, and operation at coldest
setting for a period of 8-12 hours.
■
Freezer -5 °F to -10 °F.
■
Fin temperature 18 °F to 25 °F.
Door gaskets
sealing properly?
Refrigerator
temperatures
normal?
Visual and audible signs of leak(s):
■
Yellow residue on the rear of the refrigerator.
■
Ammonia smell.
■
Gurgling noise (not always present.
Cooling unit performance test:
1. Disconnect thermistor from the wire harness.
2. Set temperature setting to the coldest setting.
3. Place thermometer in freezer.
4. Allow unit to operate for 3-4 hours.
5. Measure temperature.
Any signs of
leakage present?