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	Hot and neutral wires are reversed
contiunes to spark for	at control module.	the white wire.
complete 7 seconds,	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.
blue, lazy, transparent	Blockage in vent.	on the terminal and should be removed as required.
ﬂame.		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
Carbon is being		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	Flame is impinging on the	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.
Exhaust fumes smelled in	Fireplace is spilling.	- Check for chimney blockage.
room, headaches.	Fireplace is spilling.	- Check for chimney blockage.
room, headaches.		- Ensure that the paint curing process is complete.
		- Ensure that the paint curing process is complete.
	Thermostat or switch is defective.	- Connect a jumper wire across the wall switch terminals; if main
	Thermostat or switch is defective.	burner lights, replace switch / thermostat.
No gas to the main		burner lights, replace switch / thermostat.
No gas to the main	Main burner oriﬁce is blocked.	- Remove stoppage in oriﬁce.
burner; switch /	Main burner oriﬁce is blocked.	- Remove stoppage in oriﬁce.
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.
Burner will not light,	No gas at the burner.	- Replace the valve.
ignitor sparks.
ignitor sparks.	Out of propane gas.	- Fill the tank.
	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.	No spark at ignitor.	- Check that the spark is not jumping to ignitor cover.
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
	Spark gap is incorrect.	sensor tip.
		sensor tip.
Remote wall switch is in	Wall switch is mounted upside	- Reverse.
“OFF” position; burner	down.	- Reverse.
“OFF” position; burner	down.
comes on.
comes on.	Remote wall switch is grounding.	- Replace.
	Remote wall switch is grounding.	- Replace.
	Remote wall switch wire is	- Check for ground (short); repair ground or replace wire.
	grounding.	- Check for ground (short); repair ground or replace wire.
	grounding.
	Faulty wire.	- Replace.

W415-0619 / A /08.09.07

GT8N, GT8P specifications

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TROUBLE SHOOTING GUIDE

SYMPTOM

PROBLEM

TEST SOLUTION

at control module.

Unit is over-ﬁred or under-ﬁred.

Air shutter has become blocked.

Flame is impinging on the

combustion chamber.

Thermostat or switch is defective.

Out of propane gas.

No spark at ignitor.

Spark gap is incorrect.

GT8N, GT8P specifications