Desa VSGF33NR Maintenance, page, Refer to Air for Combustion and Venti, Troubleshooting, Remedy

OWNER’S MANUAL

TROUBLESHOOTING

Continued

OBSERVED PROBLEM POSSIBLE CAUSE REMEDY

Burner does not light after ODS/pilot is lit	1.	Burner orifice clogged
	2.	Inlet gas pressure is too low
	3.	Burner orifice diameter is too small
	4.	Thermopile leads disconnected or im-
		properly connected
	5.	Burners will not come on in remote
		position

1.Clean burner (see Cleaning and Mainte- nance, page 17) or replace burner orifice

2.Contact local natural gas company

3.Replace burner orifice

4.Reconnect leads (see Wiring Diagram, page 21)

5.Replace battery in transmitter and receiver

Delayed ignition burner	1.	Manifold pressure is too low	1.	Contact local natural gas company
	2.	Burner orifice clogged	2.	Clean burner (see Cleaning and Mainte-
	3.	Mislocated cross-over tube		nance, page 17) or replace burner orifice
			3.	Contact qualified service person
Burner backfiring during combustion	1.	Burner orifice is clogged or damaged	1.	Clean burner (see Cleaning and Mainte-
	2.	Damaged burner		nance, page 17) or replace burner orifice
			2.	Replace damaged burner
	3.	Gas regulator defective	3.	Replace gas control
Slight smoke or odor during initial operation	1.	Not enough air	1.	Check burner for dirt and debris. If
				found, clean burner (see Cleaning and
	2.	Gas regulator defective		Maintenance, page 17)
			2.	Replace gas control
	3.	Residues from manufacturing processes	3.	Problem will stop after a few hours of
		and logs curing		operation
Moisture/condensation noticed on windows	1.	Not enough combustion/ventilation air	1.	Refer to Air for Combustion and Venti-
				lation requirements (page 4)
Heater produces a whistling noise when	1.	Turning control knob to HI position	1.	Turn control knob to LO position and
burner is lit		when burner is cold		let warm up for a minute
	2.	Air in gas line	2.	Operate burner until air is removed from
				line. Have gas line checked by local
	3.	Air passageways on heater blocked		natural gas company
			3.	Observe minimum installation clear-
	4.	Dirty or partially clogged burner orifice		ances (see pages 8 through 10)
			4.	Clean burner (see Cleaning and Mainte-
				nance, page 17) or replace burner orifice
White powder residue forming within burner	1.	When heated, vapors from furniture pol-	1.	Turn heater off when using furniture pol-
box or on adjacent walls or furniture		ish, wax, carpet cleaners, etc. turn into		ish, wax, cleaners, or similar products
		white powder residue
Remote does not function (GHRC series	1.	Battery is not installed. Battery power	1.	Replace 9-volt batteries in receiver and
and GHRCT series only)		is low		remote control
Yellow flame in front burner during burner	1.	Not enough air	1.	Check burner(s) for dirt and debris. If
combustion				found, clean burner(s) (see Cleaning and
	2.	Gas regulator defective		Maintenance, page 17)
			2.	Replace gas regulator
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