Vermont Casting VM658, VM448, VM508 user manual Troubleshooting Guide

Troubleshooting Guide

PROBLEM	POTENTIAL CAUSE	ACTION REQUIRED
Uneven burn pat-	Blockage in the burner or gas	Confirm that the venturi tubes are not blocked by
tern	system	insects or other debris. Use a special venturi brush to
or		clean. (Fig. 15)
Flashback fire		Use a wire brush or toothpick to probe the orifice in
		the gas valve. Never enlarge the orifice.
		Use a small nail or toothpick to clean the burner
		ports.
		(Fig. 16)
	Corroded burner	Corrosion of a gas burner can cause the solid mate-
		rial between the gas ports to deteriorate, resulting in
		uneven burning. See your retailer for the appropriate
		replacement burner.
Excessive yellow	Improper air shutter opening	Your Grill should burn with a predominantly blue
flame		flame. If the flame is mostly yellow, check the venturi
		tubes for obstruction and clean as shown on Page 18.
		If yellow flames still persist, adjust the opening on the
		air shutter of the venturi tube located under the front
		console of the Grill. (Fig. 20)
Flare-up	Excessively fatty foods	Trim all excess fat from meat before cooking.
	Grease buildup	Confirm the sear plate and drip tray are clean and
		properly installed. Remove excess grease from the
		burn chamber. Turn down the heat.
Igniter does not	Electrode fouled	Wipe the electrode with a soft, clean cloth.
spark		The electrode should be located 1/8” to 3/16” from the
	Electrode improperly gapped
		burner, and positioned to spark to the edge of a gas
		port. If the gap is incorrect, or the unit is not properly
		sparking, gently bend the electrode tip into position.
		Use caution so the ceramic insulator does not crack.
	Electrode cracked	If the ceramic insulator on the electrode is cracked, it
		may short out. Replace the electrode.
	Lead wire is disconnected	Confirm that the lead from the Igniter module to the
		electrode is well seated on the termination of the
		module.
	Lead wire is cracked	A crack in the lead wire may result in shorting. Re-
		place the wire.
	Battery dead or installed wrong	The battery in the Igniter Button may be dead or
		installed incorrectly. Correct position is positive end
		down.

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