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www.norcold.com/cda 15N6XX/N8XX ModelsRefrigerator Service Manual
dc HE Fault Code – DC heater failed open
Before beginning this procedure make sure:
■
The RV DC electrical system is maintaining 10.5 to 15.4 Vdc to the refrigerator.
■
No other appliance or lighting circuit is connected to the refrigerator DC circuit.
Model and fault indicator displayed.
N64X.3/N84X.3
D
i
s
p
l
a
y
A
l
t
e
r
n
a
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i
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g
F2 fuse
okay?
Replace fuse. Use a standard 30 amp
(green color) automotive blade type fuse.
NO
YES
Check DC heater resistance.
See Figure.
NO
Replace DC heater.
YES
Replace power board.
Check condition of F2 fuse
in power board.
Resistance
0.81 to 0.91
Ω
?
Audible
Alarm
DC heater resistance 0.81 to 0.91
Ω.Ω.
Ω.Ω.
Ω.