Desa GCN6 Maintenance, page, Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy

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TROUBLESHOOTING

TROUBLESHOOTING

Continued

OBSERVED PROBLEM	POSSIBLE CAUSE		REMEDY
Burner does not light after ODS/pilot is lit	1.	Burner orifice is clogged	1.	Clean burner orifice (see Cleaning and
				Maintenance, page 16) or replace burner
				orifice
	2.	Inlet gas pressure is too low	2.	Contact local natural or propane/LP gas
				company
Delayed ignition of burner	1.	Manifold pressure is too low	1.	Contact local natural or propane/LP gas
				company
	2.	Burner orifice is clogged	2.	Clean burner orifice (see Cleaning and
				Maintenance, page 16) or replace burner
				orifice
Burner backfiring during combustion	1.	Burner orifice is clogged or damaged	1.	Clean burner orifice (see Cleaning and
				Maintenance, page 16) or replace burner
				orifice
	2.	Burner damaged	2.	Replace burner
	3.	Gas regulator defective	3.	Replace gas regulator
Yellow flame during burner combustion	1.	Not enough air	1.	Check burner for dirt and debris. If
				found, clean burner (see Cleaning and
				Maintenance, page 16)
	2.	Gas regulator defective	2.	Replace gas regulator
	3.	Clogged or dirty burner	3.	Clean burner (see Cleaning and Main-
				tenance, page 16)
Slight smoke or odor during initial operation	1.	Residues from manufacturing processes	1.	Problem will stop after a few hours of
				operation
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 checked by local natural
				or propane/LP gas company
	3.	Air passageways on heater blocked	3.	Observe minimum installation clear-
				ances (see Figure 4, page 7)
	4.	Dirty or partially clogged burner orifice	4.	Clean burner (see Cleaning and Mainte-
				nance, page 16) or replace burner orifice

Heater produces a clicking/ticking noise just after burner is lit or shut off

1.Metal expanding while heating or con- tracting while cooling

1.This is common with most heaters. If noise is excessive, contact qualified ser- vice person

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