Desa Tech CDVBPC, CDVBNC Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy

TROUBLESHOOTING

29

TROUBLESHOOTING

Continued

OBSERVED PROBLEM	POSSIBLE CAUSE		REMEDY
Burner does not light after pilot is lit	1.	Burner orifice clogged	1.	Clean burner (see Cleaning and
				Maintenance, page 27) or replace burner
				orifice
	2.	Inlet gas pressure is too low	2.	Contact local propane/LP or natural gas
				company
	3.	Thermopile leads disconnected or im-	3.	Reconnect leads (see Wiring Diagram,
		properly connected		page 31)
	4.	Thermopile is defective	4.	Replace thermopile
Delayed ignition burner	1.	Manifold pressure is too low	1.	Contact local propane/LP or natural gas
				company
	2.	Burner porting or orifice clogged	2.	Clean burner (see Cleaning and Main-
				tenance, page 27) or replace burner orifice
Burner backfiring during combustion	1.	Burner orifice is clogged or damaged	1.	Clean burner (see Cleaning and
				Maintenance, page 27) 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. Residues from manufacturing processes and logs curing

1.Problem will stop after a few hours of operation

Burner system produces a whistling noise	1.	Turning gas control knob to HI position	1.	Turn gas control knob to LO position and
when 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 pro-
				pane/LP or natural gas company
	3.	Dirty or partially clogged burner orifice	3.	Clean burner (see Cleaning and
				Maintenance, page 27) or replace burner
				orifice
Glass soots	1.	Flame impingement on logs	1.	Adjust the log set so that the flame does
				not excessively impinge on it
	2.	Debris around burner air mixer	2.	Inspect the opening at the base of the
				burner to see that it is NOT packed with
				any type of material

Burner system produces a clicking/ticking noise just after burners are lit or shut off

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

1.This is common. If noise is excessive, contact qualified service person

Remote does not function	1. Battery is not installed or battery power
	is low

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

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