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Polar Series N7V, N7X, N7XL / N8V, N8X, N8XL
Check cooling unit.
Correct ventilation to meet
installation requirements
.
YES
NO
Check heat input.
NO
NO
Correct heat input device to
meet specifications
.
YES
NO
Level refrigerator as outlined
in
Owner's Manual
and
specifications.
YES
YES
Replace cooling unit.
Refrigerator
operating leveled?
Ventilation as
per installation
instructions?
Any signs of leak?
Heat input device
operating within
specification?
Cooling detected?
Replace cooling unit.
NO
YES
Test cooling unit
performance.
Recheck cooling unit for leaks.
Replace cooling unit.
YES
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.
Contact Customer Service
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?
Continued from previous page.
NOR000797A
DIAGNOSTIC MODE - N7LX AND N8LX MODELS,
Cooling System Diagnostic Flowchart, cont’d.
