Napoleon Fireplaces GD82NT-T manual Pilot goes out while Gas piping is undersized, Standing Main

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SYMPTOM PROBLEM TEST SOLUTION

Pilot burning; no gas to main burner; gas knob is on ‘HI’; wall switch / thermostat is on.

Themostat or switch is defec-		-	connect a jumper wire across the wall switch terminals; if main burner lights,
tive.		replace switch / thermostat.
Wall switch wiring is defective.		- 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.
	Main burner orifi ce is plugged.	-	remove stoppage in orifi ce.
Faulty valve.		-	replace.

Pilot goes out while	Gas piping is undersized.	- turn on all gas appliances and see if pilot fl ame fl utters, diminishes or
standing; Main		extinguishes, especially when main burner ignites. Monitor appliance
burner is in ‘OFF’		supply working pressure.
position.		-	check if supply piping size is to code. Correct all undersized piping.
Pilot will not light.	No spark at pilot burner	-	check if pilot can be lit by a match
PILOT		-	replace the wire if the wire insulation is broken or frayed.
		-	replace the electrode if the ceramic insulator is cracked or broken.
BURNER THERMOPILE
		-	check & replace the battery
THERMOCOUPLE		-	check to make sure the electrode is connected to the ignitor box
	Out of propane gas	-	fi ll the tank.
	Spark gap is incorrect	- 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).
	No gas at the pilot burner	-	check that the manual valve is turned on.
		-	check the pilot orifi ce for blockage.
		-	replace the valve.
		-	call the gas distributor.
Main burner goes out;	Pilot fl ame is not large enough or	-	turn up pilot fl ame.
pilot stays on.	not engulfi ng the thermopile	- replace pilot assembly.
	Thermopile shorting	- clean thermopile connection to the valve. Reconnect.
		- replace thermopile / valve.
	Remote wall switch wire is too	-	shorten wire to correct length or wire gauge.
	long; too much resistance in the
	system.
	Faulty thermostat or switch.	-	replace.

Main burner goes out; pilot goes out.

Refer to “MAIN BURNER GOES OUT; PILOT STAYS ON”

Vent is blocked	-	check for vent blockage.
Vent is re-circulating	-	check joint seals and installation.
4” fl exible vent has become dis-	-	re-attach to fi replace.
connected from fi replace.

Remote wall switch is in “OFF” position; main burner comes on when gas knob is turned to “ON” position.

Wall switch is mounted upside - reverse. down

Remote wall switch is ground- - replace. ing.

Remote wall switch wire is - check for ground (short); repair ground or replace wire. grounding.

Faulty valve.

Flames are consis-	Unit is over-fi red or under-fi red.
tently too large or too
small. Carboning oc-	B		A
curs.
OL
HI	O		F
			F
		OL	P
P
TOLI	PILOT

-replace.

-check pressure readings:

Inlet pressure can be checked by turning screw (A) counter-clock-wise 2 or 3 turns and then placing pressure gauge tubing over the test point. Gauge should read 7” (minimum 4.5”) water column for natural gas or 13” (11” minimum) water column for propane. Check that main burner is operating on “HI”.

Outlet pressure can be checked the same as above using screw (B). Gauge should read 3.5” water column for natural gas or 10” water column for propane. Check that main burner is operating on “HI”.

AFTER TAKING PRESSURE READINGS, BE SURE TO TURN SCREWS CLOCKWISE FIRMLY TO RESEAL. DO NOT OVERTORQUE.

Leak test with a soap and water solution.

W415-0583 / B / 05.23.07