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www.norcold.com/cda 39N6XX/N8XX ModelsRefrigerator Service Manual
Cooling System Diagnostic Flowchart
!
WARNING:
Do not operate the refrigerator if the
cooling unit is leaking or a leak is
suspected.
!
WARNING:
Do not bypass or modify the refrigerator’s controls
or components to diagnose the cooling system. Do
not wire the heater(s) direct. The heater is supplied
power through a fused circuit.
Check cooling unit.
Correct ventilation to meet
installation requirements
.
YES
NO
Check heat input.
NO
NO
Correct heat input device to
meet specifications
.
YES
Signs of leak(s):
■
Yellow residue inside or at the rear of the
refrigerator.
■
Ammonia smell.
NO
Level refrigerator as outlined
in Owner's Manual and
specifications.
YES
Continued on page 40.
YES
Replace cooling unit.
Refrigerator
operating leveled?
Maximum off-level limits:
■
3 degrees side to side.
■
6 degrees front to back.
Check (as required):
■
AC heater voltage and amp draw.
■
DC heater voltage and amp draw.
(3-way units only).
■
Burner, orifice, flue, deflector cap, flue baffle.
■
LP gas pressure.
Ventilation as
per installation
instructions?
Any signs of leak?
Heat input device
operating within
specification?