Desa GWP10 GWN10T Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy

TROUBLESHOOTING

Continued

OBSERVED PROBLEM	POSSIBLE CAUSE		REMEDY
ODS/pilot lights but flame	1.	Control knob not fully pressed in	1.	Press in control knob fully
goes out when control knob is	2.	Control knob not pressed in	2.	After ODS/pilot lights, keep
released		long enough		control knob pressed in 30
	3.	Equipment shutoff valve not		seconds
			3.	Fully open equipment shutoff
		fully open		valve
	4.	Thermocouple connection	4.	Hand tighten until snug, then
		loose at control valve		tighten 1/4 turn more
	5.	Pilot flame not touching ther-	5.	A) Contact local natural or
		mocouple, which allows ther-		propane/LP gas company
		mocouple to cool, causing		B) Clean ODS/pilot (see
		pilot flame to go out. This		Cleaning and Maintenance,
		problem could be caused by		page 15) or replace ODS/pilot
		one or both of the following:		assembly

A)Low gas pressure

B)Dirty or partially clogged ODS/pilot

	6.	Thermocouple damaged	6.	Replace pilot assembly
	7.	Control valve damaged	7.	Replace control valve
Burner does not light after	1. Burner orifice is clogged		1.	Clean burner orifice (see Clean-
ODS/pilot is lit				ing and Maintenance, page 15)
				or replace burner orifice
	2.	Inlet gas pressure is too low	2.	Contact local natural or pro-
				pane/LP gas company
Delayed ignition of burner	1. Manifold pressure is too low		1.	Contact local natural or pro-
				pane/LP gas company
	2.	Burner orifice is clogged	2.	Clean burner orifice (see Clean-
				ing and Maintenance, page 15)
				or replace burner orifice
Burner backfiring during com-	1. Burner orifice is clogged or		1.	Clean burner orifice (see Clean-
bustion		damaged		ing and Maintenance, page 15)
	2.	Burner damaged		or replace burner orifice
			2.	Replace burner
	3.	Gas regulator defective	3.	Replace gas regulator

117001-01A www.desatech.com 17