Desa VI33NR VI33PR installation manual Observed Problem Possible Cause Remedy

TROUBLESHOOTING

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TROUBLESHOOTING

Continued

OBSERVED PROBLEM	POSSIBLE CAUSE		REMEDY
Burner does not light after ODS/pilot is lit	1.	Burner orifice clogged	1.	Clean burner (see Cleaning and Mainte-
				nance, page 201) or replace burner orifice
	2.	Inlet gas pressure is too low	2.	Contact local natural gas company
	3.	Thermopile leads disconnected or im-	3.	Reconnect leads (see Wiring Diagram,
		properly connected		page 21)
	4.	Burners will not come on in remote	4.	Replace battery in transmitter and receiver
		position
Delayed ignition burner	1.	Manifold pressure is too low	1.	Contact local natural or propane/LP gas
				company
	2.	Burner orifice clogged	2.	Clean burner (see Cleaning and Mainte-
				nance, page 20) or replace burner orifice
Burner backfiring during combustion	1.	Burner orifice is clogged or damaged	1.	Clean burner (see Cleaning and Mainte-
				nance, page 20) or replace burner orifice
	2.	Damaged burner	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
				Maintenance, page 20)
	2.	Gas regulator defective	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 5)
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
				natural or propane/LP gas company
	3.	Air passageways on heater blocked	3.	Observe minimum installation clear-
				ances (see page 9)
	4.	Dirty or partially clogged burner orifice	4.	Clean burner (see Cleaning and Mainte-
				nance, page 20) or replace burner orifice

White powder residue forming within burner box or on adjacent walls or furniture

1.When heated, vapors from furniture pol- ish, wax, carpet cleaners, etc. may turn into white powder residue

1.Turn heater off when using furniture pol- ish, wax, cleaners, or similar products

Remote does not function (GHRC and GHRCTA Series only)

1.Battery is not installed. Battery power is low

1.Replace 9-volt batteries in receiver and hand-held remote control

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