Napoleon Fireplaces GT8P Trouble Shooting Guide, Symptom, Problem, Test Solution, the white wire

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TROUBLE SHOOTING GUIDE

BEFORE ATTEMPTING TO TROUBLESHOOT, PURGE YOUR UNIT AND INITIALLY LIGHT THE IGNITOR AND THE MAIN BURNER WITH THE GLASS DOOR OPEN.

SYMPTOM	PROBLEM	TEST SOLUTION
Electrode sparks, burner
ignites, electrode	Hot and neutral wires are reversed	- Connect the hot wire to the black wire. Connect the neutral wire to
contiunes to spark for
	at control module.	the white wire.
complete 7 seconds,
burner shuts down.
Main burner flame is a		- Remove blockage. In extremely cold conditions, ice buildup may occur
blue, lazy, transparent	Blockage in vent.
		on the terminal and should be removed as required.
flame.
Flame length	Unit is over-fired or under-fired.	- Check pressure readings
consistently too large		- Outlet pressure can be checked by removing cap (A) and replacing
or too small. Carboning		it with a 1/8” NPT barb fitting. Next, place pressure gauge tubing
occurs.		over the fitting. Gauge should read 3.5” W.C. for natural gas or
		10.0” W.C. for propane. AFTER TAKING PRESSURE READINGS,
		BE SURE TO REPLACE CAP TO RESEAL. DO NOT OVER-TORQUE.
		- Leak test with a soap and water solution.
	Air shutter has become blocked.	- Ensure air shutter opening is free of lint or other obstructions.
		- Open air shutter to increase the primary air.
Carbon is being		- Check the input rate: check the manifold pressure and orifice size as
		specified by the rating plate values.
deposited on glass, logs	Flame is impinging on the	- Check that the door gasketing is not broken or missing and that the
or combustion chamber		seal is tight.
surfaces.	combustion chamber.	- Check that both 3” and 5” vent liners are free of holes and well
		sealed at all joints.
		- Check that the minimum rise per foot has been adhered to for any
		horizontal venting.
	Sulphur from fuel is being	- Clean the glass with a gas fireplace glass cleaner. DO NOT CLEAN
White / grey film forms.	deposited on glass, logs or	GLASS WHEN HOT. If deposits are not cleaned off regularly, the
	combustion chamber surfaces.	glass may become permanently marked.
Exhaust fumes smelled in		- Check door seal.
	Fireplace is spilling.	- Check for chimney blockage.
room, headaches.
		- Ensure that the paint curing process is complete.
	Thermostat or switch is defective.	- Connect a jumper wire across the wall switch terminals; if main
		burner lights, replace switch / thermostat.
No gas to the main
	Main burner orifice is blocked.	- Remove stoppage in orifice.
burner; switch /
thermostat is on.	Control valve faulty.	- Replace.
	Faulty valve.	- Replace.
Burner will not light,	No gas at the burner.	- Check that the manual valve is turned on.
		- Replace the valve.
ignitor sparks.
	Out of propane gas.	- Fill the tank.
Ignitor		- Check the power source. (ie. fuse, circuit breaker)
will		- Check that the wire is connected to both the ignitor and the control
not	No spark at ignitor.	module.
spark.		- Check that the spark is not jumping to ignitor cover.
		- Replace the wire if the wire insulation is broken or frayed.
		- Replace the electrode if the ceramic insulator is cracked or broken.
	Spark gap is incorrect.	- Spark gap should be 0.125” (1/8” approx.) from the electrode tip to the
		sensor tip.
Remote wall switch is in	Wall switch is mounted upside	- Reverse.
“OFF” position; burner	down.
comes on.
	Remote wall switch is grounding.	- Replace.
	Remote wall switch wire is	- Check for ground (short); repair ground or replace wire.
	grounding.
	Faulty wire.	- Replace.

W415-0619 / A /08.09.07