Desa VN20BTA, VP30BTA Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy

TROUBLESHOOTING

Continued

OBSERVED PROBLEM	POSSIBLE CAUSE		REMEDY
Yellow flame during burner	1.	Not enough air	1.	Check burner for dirt and
combustion				debris. If found, clean burner
				(see Cleaning and Mainte-
	2.	Gas regulator defective	2.	nance, page 16)
				Replace gas regulator
	3.	Clogged or dirty burner	3.	Clean burner (see Cleaning
				and Maintenance, page 16)
Slight smoke or odor during initial	1.	Residues from manufacturing	1.	Problem will stop after a few
operation		processes		hours of operation
Heater produces a whistling noise	1.	Turning control knob to posi-	1.	Turn control knob to position 1
when burner is lit	2.	tion 5 when burner is cold	2.	and let warm up for a minute
		Air in gas line		Operate burner until air is
				removed from line. Have gas
				line checked by local natural
	3.	Air passageways on heater	3.	or propane/LP gas company
				Observe minimum installation
	4.	blocked	4.	clearances (see Figure 4, page 8)
		Dirty or partially clogged		Clean burner (see Cleaning
		burner orifice		and Maintenance, page 16) or
				replace burner orifice
White powder residue forming	1.	When heated, vapors from	1.	Turn heater off when using
within burner box or on adjacent		furniture polish, wax, carpet		furniture polish, wax, carpet
walls or furniture		cleaner, etc., may turn into		cleaners or similar products
		white powder residue
Heater produces a clicking/tick-	1.	Metal expanding while heating	1.	This is normal with most heat-
ing noise just after burner is lit		or contracting while cooling		ers. If noise is excessive, contact
or shut off				qualified service person
Heater shuts off in use (ODS	1.	Not enough fresh air is avail-	1.	Open window and/or door for
operates)	2.	able	2.	ventilation
		Low line pressure		Contact local natural or pro-
	3.	ODS/pilot is partially	3.	pane/LP gas company
				Clean ODS/pilot (see Cleaning
		clogged		and Maintenance, page 16)

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