Desa VN1800ITA, VN1800D, VN2550ITA, VN3000D installation manual Trouble Shooting, See Cleaning

TROUBLE-

SHOOTING

Continued

28

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 natural gas
		low.		company.
Delayed ignition of	1.	Manifold pressure is too	1.	Contact local natural gas
burner(s)		low.		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 natural gas
		low.		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 or		while cooling.		excessive, contact
shut off.				qualified service person.

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