Vanguard Heating VP2600D, VP1600ITA, VP1600D Trouble- Shooting, Continued, see Cleaning and

28

TROUBLE- SHOOTING

Continued

OBSERVED	POSSIBLE
PROBLEM	CAUSE		REMEDY
Burner(s) does not	1.	Burner orifice(s) is	1.	Clean burner orifice(s)
light after ODS/pilot is		clogged.		(see Cleaning and
lit.				Maintenance, page 26) or
				replace burner orifice(s).
	2.	Burner orifice(s)	2.	Replace burner orifice(s).
		diameter is too small.
	3.	Inlet gas pressure is too	3.	Contact local propane/LP
		low.		gas company.
Delayed ignition of	1.	Manifold pressure is too	1.	Contact local propane/LP
burner(s)		low.		gas company.
	2.	Burner orifice(s) is	2.	Clean burner orifice(s)
		clogged.		(see Cleaning and
				Maintenance, page 26 or
				replace burner orifice(s).
Burner backfiring	1.	Burner orifice(s) is	1.	Clean burner orifice(s)
during combustion.		clogged or damaged.		(see Cleaning and
				Maintenance, page 26) or
				replace burner orifice(s).
	2.	Burner damaged.	2.	Replace burner.
	3.	Gas regulator defective.	3.	Replace gas regulator.
Burner plaque(s) does	1.	Plaque damaged.	1.	Replace burner.
not glow.	2.	Inlet gas pressure is too	2.	Contact local propane/LP
		low.		gas company.
	3.	Control knob set be-	3.	Turn control knob until it
		tween locked positions.		locks at desired setting.
Slight smoke or odor	1.	Residues from manu-	1.	Problem will stop after a
during initial opera-		facturing processes		few hours of operation.
tion
Heater produces a	1.	Metal expanding while	1.	This is common with
clicking/ticking noise		heating or contracting		most heaters. If noise is
just after burner is lit		while cooling.		excessive, contact
or shut off.				qualified service person.

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