Vermont Casting VL21LP, VL24LP, VL18LP Troubleshooting, Symptom Possible Causes Corrective Action

Troubleshooting

With proper installation and maintenance, your new Gas Appliance should provide years of trouble-free ser- vice. If you do experience a problem, this guide will assist a CERTIFIED SERVICE PERSON in the diag- nosis of problems and the corrective action to be taken.

Symptom	Possible Causes	Corrective Action
Pilot will not light with piezo	A. Main shutoff valve closed	Make sure the shutoff valve
ignitor or match		located on the gas supply line
		is open
	B. Air in the gas line	Light a match, turn valve knob
		to “PILOT” position and de-
		press. Keep match near pilot
		burner until it lights
	C. Pilot orifice plugged, not allow-	Replace the burner assembly
	ing gas to flow
	D. No gas supply to the fireplace	Check plumbing to see if gas
		fireplace has been hooked up
		to the gas supply line
		Propane tank empty
Pilot will not stay lit after care-	A. Defective thermocouple	Replace burner assembly
fully following lighting instruc-	B. Thermocouple fitting not tight
tions		Carefully tighten fitting
	in valve
	C. Weak pilot flame	Pilot flame must engulf ther-
		mocouple. Clean and/or
		adjust pilot for maximum flame
		impingement on thermocouple.
		(Fig. 14, 15)
	D. Defective valve	Replace burner assembly
	E. Not enough oxygen in the	Open door and get fresh air at
	room	once!
	(DANGER!)
No gas to main burner with	A. Plugged main burner orifice
pilot flame burning and valve		Replace burner assembly
turned to “high - low” range	B. Defective valve
		Replace burner assembly

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