Desa VF-24N-PJD Troubleshooting, Continued, Burner backfiring during com, see Cleaning and Mainte

TROUBLESHOOTING

Continued

OBSERVED PROBLEM	POSSIBLE CAUSE		REMEDY
Burner backfiring during com-	1.	Burner orifice is clogged or	1.	Clean burner (see Cleaning
bustion		damaged		and Maintenance, page 19) or
	2.	Damaged burner		replace burner orifice
			2.	Replace damaged burner
	3.	Gas regulator defective	3.	Replace gas regulator
Orange flame in burner during	1.	Not enough air	1.	Check burner for dirt and
burner combustion				debris. If found, clean burner
				(see Cleaning and Mainte-
	2.	Gas regulator defective		nance, page 19)
			2.	Replace gas control
Slight smoke or odor during	1.	Residues from manufacturing	1.	Problem will stop after a few
initial operation (first hour)		processes and logs curing		hours of operation
Heater produces awhistling noise	1.	Turning control knob to HI	1.	Turn control knob to LO
when burner is lit		position when burner is cold		position and let warm up for
	2.	Air in gas line		a minute
			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	3.	Observe minimum installation
		blocked		clearances (see page 9)
	4.	Dirty or partially clogged	4.	Clean burner (see Cleaning
		burner orifice(s)		and Maintenance, page 19) 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		cleaners, etc. may turn into		cleaners or similar products
		white powder residue
Moisture/condensation noticed	1.	Not enough combustion/ven-	1.	Refer to Air for Combustion
on windows		tilation air		and Ventilation requirements
				(page 5)

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