Norcold Polar N7V Service Manual page 30

Are all
propane gas
valves open and
TROUBLESHOOTING FLOWCHARTS - N7X AND N8X MODELS, cont'd.
supply free of
air?
Continued from previous page.
YES
Is burner clean?
YES
Is burner/
electrode gap
1/8"-3/16"?
YES
Spark/sense
wire installed
correctly w/
continuity?
YES
Gas valve
solenoid coil
resistance
74-92 Ohms?
YES
Wires to gas
valve connected
w/continuity?
YES
Does
main control
board (pwr board)
supply 12VDC to
gas train?
YES
Replace gas train.
Polar Series N7V, N7X, N7XL / N8V, N8X, N8XL
NO
Correct.
NO
Clean burner.
NO
Correct gap.
NO
Correct. Replace spark / sense
ignitor wire if needed.
NO
Replace gas train assembly.
NO
Correct. Replace wires if needed.
NO
Replace main control board assembly
(power board assembly).
NOR000707A
30
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