Trouble Shooting Guide - Napoleon GDS3700-N Installation And Operation Instructions Manual

16

TROUBLE SHOOTING GUIDE

B
EFORE ATTEMPTING TO TROUBLESHOOT
SYMPTOM SYMPTOM SYMPTOM SYMPTOM SYMPTOM
Pilot will not light.
THERMOPILE
PILOT
BURNER
THERMO-
COUPLE
ELECTRODE
Pilot goes out when
the gas knob is re-
leased.
The gas valve has an
interlock device
which will not allow
the pilot burner to be
lit until the thermo-
couple has cooled.
Allow approximately
60 seconds for the
thermocouple
cool.
Pilot burning; no gas
to main burner; gas
knob is on 'HI'; wall
switch / thermostat is
on.
Pilot goes out while
standing; Main burner
is in 'OFF' position.
Main burner goes out;
pilot stays on.
WS-415-63 / 11.24.98
,
PURGE YOUR UNIT AND INITIALLY LIGHT THE PILOT AND THE MAIN BURNER WITH THE GLASS DOOR REMOVED
PROBLEM PROBLEM PROBLEM PROBLEM PROBLEM
No spark at pilot burner
Spark gap is incorrect
No gas at the pilot burner
Out of propane gas.
System is not correctly purged. - purge the gas line.
Out of propane gas
Pilot flame is not large enough
Pilot flame is not engulfing the
thermocouple.
Thermocouple shorting.
Faultly thermocouple.
to
Faulty valve.
Main burner orifice is plugged.
Faulty thermopile.
Faulty themostat or switch.
Faulty valve.
Gas piping is undersized.
Pilot flame is not large enough
or not engulfing the thermopile.
Thermopile shorting
Remote wall switch wire is too
long, too much resistance in the
system
Faulty thermostat or switch
TEST SOLUTION TEST SOLUTION TEST SOLUTION TEST SOLUTION TEST SOLUTION
- 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.
- 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.
- fill the tank.
- fill the tank.
- turn up the pilot flame.
- turn up pilot flame.
- replace pilot assembly.
- loosen and tighten thermocouple.
- clean thermocouple and valve connection.
- replace thermocouple.
- replace valve.
- replace.
- replace.
- remove stoppage in orifice.
- replace.
- ensure proper connection.
- replace.
- turn on all gas appliances and see if pilot flame flutters,
diminishes or extinguishes, especially when main burner ig-
nites. Monitor supply pressure.
- check if supply piping size is to code. Correct all undersized
piping.
- turn up pilot flame.
- replace pilot assembly.
- clean thermopile and thermopile connection to valve.
- shorten wire to correct length or wire gauge.
- replace
.