Trouble Shooting - Napoleon BGNV40-N Installation And Operating Instructions Manual

12.0

TROUBLE SHOOTING

ALWAYS LIGHT THE PILOT WHETHER FOR THE FIRST TIME OR IF THE GAS SUPPLY HAS RAN OUT,
TURN OFF THE GAS AND ELECTRICAL POWER BEFORE SERVICING THE APPLIANCE.
APPLIANCE MAY BE HOT, DO NOT SERVICE UNTIL APPLIANCE HAS COOLED.
SYMPTOM
Main burner goes out;
pilot stays on.
Main burner goes out;
pilot goes out.
Pilot goes out when the
gas knob is released.
The gas valve has an
interlock device which
will not allow the pilot
burner to be lit until
the thermocouple
has cooled. Allow
approximately 60
seconds for the
thermocouple to cool.
Pilot burning; no gas to
main burner; gas knob
is on 'HI'; wall switch /
thermostat is on.
Pilot will not light.
PILOT
BURNER
THERMOCOUPLE
WITH THE GLASS DOOR OPEN OR REMOVED.
DO NOT USE ABRASIVE CLEANERS.
PROBLEM
Pilot fl ame is not large enough or
not engulfi ng the thermopile.
Thermopile shorting.
Remote wall switch wire is too long;
too much resistance in the system.
Faulty thermostat or switch.
Vent safety switch has opened.
(Tripped)
Hi limit switch has opened. (Tripped)
Refer to "MAIN BURNER GOES OUT; PILOT STAYS ON"
Faulty thermocouple
System is not correctly purged.
Out of propane gas.
Pilot fl ame is not large enough.
Pilot fl ame is not engulfi ng the
thermocouple
Thermocouple shorting / faulty.
Faulty valve.
Thermostat or switch is defective
Wall switch wiring is defective.
Main burner orifi ce is plugged.
Faulty valve.
Vent safety switch has opened. (Tripped)
Hi limit switch has opened. (Tripped)
No spark at pilot burner.
THERMOPILE
Out of propane gas.
Spark gap is incorrect.
No gas at the pilot burner.
WARNING
!
TEST SOLUTION
- Turn up the pilot fl ame.
- Replace pilot assembly.
- Clean thermopile connection tot he valve. Reconnect.
- Replace thermopile / valve.
- Shorten wire to connect length or wire gauge.
- Replace.
- Vent has become blocked or disconnected. Correct.
- Unit has overheated.
- Replace.
- Purge the gas line with the glass door open.
- Fill the tank.
- Turn up the pilot fl ame.
- Gently twist the pilot head to improve the fl ame pattern
around the thermocouple.
- Loosen and tighten thermocouple.
- Clean thermocouple and valve connection.
- Replace thermocouple.
- Replace valve.
- Replace.
- Connect a jumper wire across the wall switch terminals; if
main burner lights, replace switch / thermostat.
- Disconnect the switch wires & connect a jumper wire across
terminals 1 & 3; if the main burner lights, check the wires for
defects and/or replace wires.
- Remove stoppage in orifi ce.
- Replace.
- Vent has become blocked or disconnected. Correct.
- Unit has overheated.
- Check if pilot can be lit by a match.
- Check that the wire is connected to the push button igniter.
- Check if the push button igniter needs tightening.
- Replace the wire if the wire insulation is broken or frayed.
- Replace the electrode if the ceramic insulator is cracked or broken.
- Replace the push button ignitor
- Fill the tank.
- Spark gap should be 0.150" to 0.175" (5/32" to 11/64" approx.) from the
electrode tip and the pilot burner. To ensure proper electrode location,
tighten securing nut (fi nger tight plus 1/4 turn).
- Check that the manual valve is turned on.
- Check the pilot orifi ce for blockage.
- Replace the valve.
- Call the gas distributor.
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42.12
W415-0813 / A / 04.19.10