Trouble Shooting Guide - Napoleon BGNV42N Installation And Operation Instructions Manual

TROUBLE SHOOTING GUIDE

B
EFORE ATTEMPTING TO TROUBLESHOOT
SYMPTOM
Main burner goes Pilot flame is not large
out; pilot stays on. enough or not engulfing the
thermopile
Thermopile shorting
Remote wall switch wire is
too long; too much resist-
ance in the system.
Faulty thermostat or switch.
Vent safety switch has
opened. (Tripped)
Hi Limit switch has opened.
(Tripped)
Main burner goes
Refer to "MAIN BURNER GOES OUT; PILOT STAYS ON"
out; pilot goes out.
Faulty thermocouple.
Pilot goes out when
System is not correctly
the gas knob is re-
purged.
leased.
Out of propane gas.
The gas valve has
Pilot flame is not large
an interlock device
enough
which will not allow
the pilot burner to
Pilot flame is not engulfing
be lit until the ther-
the thermocouple.
mocouple has
Thermocouple shorting /
cooled. Allow ap-
faulty.
proximately 60
seconds for the
thermocouple to
Faulty valve.
cool.
Themostat or switch is de-
Pilot burning; no
fective.
gas to main
burner; gas knob
Wall switch wiring is defec-
is on 'HI'; wall
tive.
switch / thermostat
is on.
Main burner orifice is plugged.
Faulty valve.
Vent safety switch has opened.
(Tripped)
Hi Limit switch has opened. (Tripped)
Pilot will not light. No spark at pilot burner
Out of propane gas
Spark gap is incorrect
No gas at the pilot burner
,
PURGE YOUR UNIT AND INITIALLY LIGHT THE PILOT AND THE MAIN BURNER WITH THE GLASS DOOR REMOVED
PROBLEM
- turn up pilot flame.
- replace pilot assembly.
- clean thermopile connection to the valve. Reconnect.
- replace thermopile / valve.
- shorten wire to correct length or wire gauge.
- replace.
- Vent has become blocked or disconnected. Correct. See Figure 2.
- Unit has overheated. See Figure 2
- replace.
- purge the gas line with the glass door open.
- fill the tank.
- turn up the pilot flame.
- gently twist the pilot head to improve the flame pattern around the
thermocouple.
- loosen and tighten thermocouple.
- clean thermocouple and valve connection.
- replace thermocouple.
- replace.
- connect a jumper wire across the wall switch terminals; if main
burner lights, replace switch / thermostat.
- disconnect 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 orifice.
- replace.
- Vent has become blocked or disconnected. Correct. See Figure 2.
- Unit has overheated. See Figure 2
- check if pilot can be lit by a match
- check that the wire is connected to the push button ignitor.
- check if the push button ignitor 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 (finger tight plus 1/4 turn).
- check that the manual valve is turned on.
- check the pilot orifice for blockage.
- replace the valve.
- call the gas distributor.
TEST SOLUTION
15
.
W415-0377 / 03.04.03