Desa CGB50P, CGB35P installation manual Stat bulb satisfied

TROUBLE- SHOOTING

OBSERVED	POSSIBLE
PROBLEM	CAUSE	REMEDY

Continued

Burner backfiring	1. Burner orifice is
during combustion.		clogged or damaged.
	2.	Burner damaged.
	3.	Gas regulator defective.
	4.	Delayed ignition.

1.Clean burner (see Clean- ing and Maintenance, page 25) or replace burner orifice.

2.Replace burner.

3.Replace control valve.

4.See above.

Yellow	flame	during	1.	Not enough air.	1.	A) Check burner for dirt
burner combustion.						and debris. If found, clean
						burner (see Cleaning and
						Maintenance, page 25).
			2.	Gas regulator defective.	2.	Replace control valve.
Slight smoke or odor			1.	Residues from manu-	1.	Problem will stop after a
during	initial	opera-		facturing processes.		few hours of operation.
tion.

Burner fails to re-	1.	Pilot flame not lit.
spond to thermostat.
	2.	Pilot flame not properly
		heating end of thermo-
		couple.
	3.	Pilot burner orifice
		clogged or damaged.
	4.	Control valve defec-
		tive.
	5.	Temperature at thermo-
		stat bulb satisfied.

1.Light pilot burner (see Lighting Instructions, page 20).

2.Pilot flame needs adjust- ing. Contact a qualified service person.

3.Clean pilot burner (see Cleaning and Mainte- nance, page 25).

4.Replace control valve.

28

Heater produces a	1. Air in gas line.
whistling noise when
burner is lit.
	2.	Air passageways on
		heater blocked.
	3.	Dirty or partially
		clogged burner orifice.

1.Operate burner until air is removed from line. Have gas line checked by local propane gas company.

2.Observe minimum instal- lation clearances (see Figure 3, page 7).

3.Clean burner (see Clean- ing and Maintenance, page 25) or replace burner orifice.

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