Trouble Shooting Guide - Napoleon GD33NR Installation And Operation Instructions Manual

TROUBLE SHOOTING GUIDE

B
EFORE ATTEMPTING TO TROUBLESHOOT
SYMPTOM
Pilot goes out while Gas piping is undersized.
standing; Main
burner is in 'OFF'
position.
System is not correctly
Pilot goes out when
purged.
the gas knob is re-
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 de-
is on 'HI'; wall
fective.
switch / thermostat
is on.
Main burner orifice is
plugged.
Faulty valve.
Pilot will not light. No spark at pilot burner
Out of propane gas
Spark gap is incorrect
No gas at the pilot burner
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 re-
sistance in the system.
Faulty
switch.
,
PURGE YOUR UNIT AND INITIALLY LIGHT THE PILOT AND THE MAIN BURNER WITH THE GLASS DOOR REMOVED
PROBLEM
- turn on all gas appliances and see if pilot flame flutters, dimin-
ishes or extinguishes, especially when main burner ignites. Moni-
tor appliance supply working pressure.
- check if supply piping size is to code. Correct all undersized
piping.
- purge the gas line with the glass door removed.
- 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 valve.
- replace.
- connect a jumper wire across the wall switch terminals; if main
burner lights, replace switch / thermostat.
- disconnect switch wires from valve & connect a jumper wire across
terminals 1 & 3; if the main burner lights, check the wires for de-
fects and / or replace wires.
- remove stoppage in orifice.
- replace.
- 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 elec-
trode 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.
- 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.
thermostat or
TEST SOLUTION
31
.
W415-0341 / F / 11.21.05