Napoleon Fireplaces GSST8N Trouble Shooting Guide, Pressure READINGS, be Sure to Replace CAP to

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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 REMOVED.

SYMPTOM			PROBLEM			TEST SOLUTION
Electrode sparks,			Hot and neutral wires are			- Connect the hot wire to the black wire. Connect the neutral
burner ignites,			reversed at control module.
						wire to the white wire.
electrode continues
to spark for			Sensor / flame not			- Raise electrode / sensor up into flame 1/4” above the burner.
complete 7 seconds,			connecting
burner shuts down.
Flame length			Unit is over-fired or under-			- Check pressure readings
consistently too			fired.	A		- Outlet pressure can be checked by removing cap (A) and
large or too small.						replacing it with a 1/8” NPT barb fitting. Next, place pressure
Carboning occurs.						gauge tubing 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.
					O S	- Leak test with a soap and water solution.
Carbon is being			Air shutter has become			- Ensure air shutter opening is free of lint or other obstructions.
			blocked.
deposited on glass,
						- Open air shutter to increase the primary air.
and combustion			Flame is impinging on the
						- Check the input rate: check the manifold pressure and orifice
chamber surfaces.			combustion chamber.
						size as specified by the rating plate values.
White / grey film			Sulphur from fuel is being			- Clean the glass with a gas appliance glass cleaner. DO NOT
			deposited on glass, logs
						CLEAN GLASS WHEN HOT. If deposits are not cleaned off
forms.			or combustion chamber
						regularly, the glass may become permanently marked.
			surfaces.
			Switch is defective.			- Connect a jumper wire across the wall switch terminals; if main
						burner lights, replace switch.
No gas to the main
			Burner orifice is blocked.			- Remove stoppage in orifice.
burner; switch 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.
Electrode does not
spark. Burner does			GFCI has been tripped.			- Push reset button (red) on the face of the GFCI.
not light.
Ignitor		SENSOR				- Check the power source. (ie. fuse, circuit breaker, GFCI resent
will						button.)
not	ELECTRODE					- Check that the wire is connected to both the ignitor and the
spark.		1/8”	No spark at ignitor.			control module.
		GAP				- Check that the spark is not jumping to ignitor cover.
		CERAMIC				- Replace the wire if the wire insulation is broken or frayed.
	HIGH	BODY				- Replace the electrode if the ceramic insulator is cracked or
	VOLTAGE					broken.
	IGNITION
	CABLE
			Spark gap is incorrect.			- Spark gap should be 0.125” (1/8” approx.) from the electrode
						tip to the sensor tip.
Remote wall switch			Wall switch is mounted			- Reverse.
is in “OFF” position;			upside down.
burner comes on.
			Remote wall switch is			- Replace.
			grounding.
			Remote wall switch wire is			- Check for ground (short); repair ground or replace wire.
			grounding.
			Faulty wire.			- Replace.

W415-0689 / 06.25.08