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www.norcold.com
Polar Series N7V, N7X, N7XL / N8V, N8X, N8XL
Possible Cause:
There is no AC power to the refrigerator.
Fault Code - “no” “AC” with audible alarm
Before starting this procedure make sure:
■
No other problems exist with the vehicle’s AC power supply.
■
No other appliances or lighting circuits are connected to the
refrigerator AC circuit.
■
No extension cords are being used to supply AC power to the
refrigerator.
TROUBLESHOOTING FLOWCHARTS - N7LX AND N8LX MODELS, cont’d.
CODE
CODE
CODE
CODE
Alternately flashes “no” and “AC”
with an audible alarm.
NOR000714A
F2 fuse okay?
1. Check AC power input from RV to unit.
2. Check for faulty AC power cord.
NO
NO
YES
Check condition of F2 fuse
on main control board
(power board).
Replace fuse. Use a 5 amp,
1
/
4
" x 1
1
/
4
"
AGC type fuse.
108 to 132
VAC?
YES
Check that fuse holder clips
are making full contact with
fuse.
Adjust clips to ensure fuse contacts are
firm in clips and making full contact.
YES
Clips okay?
NO
Replace main control board assembly
(power board assembly).
Measure voltage at AC power
cord connection of the
main control board (power
board).