Desa UNVENTED (VENT-FREE) PROPANE/LPGAS LOG HEATER TROUBLE- Shooting, Maintenance

TROUBLE- SHOOTING

OBSERVED	POSSIBLE
PROBLEM	CAUSE	REMEDY

Continued

When ignitor button is pressed, there is spark at ODS/pilot but no ignition

1.Gas supply turned off or manual shutoff valve closed

2.Control knob not in PILOT position

3.Control knob not pressed in while in PILOT position

4.Air in gas lines when installed

5.Depleted gas supply

6.ODS/pilot is clogged

7.Gas regulator setting is not correct

1.Turn on gas supply or open manual shutoff valve

2.Turn control knob to PILOT position

3.Press in control knob while in PILOT position

4.Continue holding down control knob. Repeat igniting operation until air is removed

5.Contact local propane gas company

6.Clean ODS/pilot (see Cleaning and Mainte- nance, page 25) or replace ODS/pilot assembly

7.Replace gas regulator

26

ODS/pilot lights but	1.	Control knob not fully	1.	Press in control knob
flame goes out when		pressed in		fully
control knob is	2.	Control knob not	2.	After ODS/pilot lights,
released		pressed in long enough		keep control knob
				pressed in 30 seconds
	3.	Safety interlock system	3.	Wait one minute for
		has been triggered		safety interlock system
				to reset. Repeat ignition
				operation
	4.	Manual shutoff valve	4.	Fully open manual
		not fully open		shut-off valve
	5.	Pilot flame not touching	5.	A) Contact local
		thermocouple, which		propane gas company
		allows thermocouple to
		cool, causing pilot flame		B) Clean ODS/pilot
		to go out. This problem		(see Cleaning and
		could be caused by one		Maintenance, page 25)
		or both of the following:		or replace ODS/pilot
		A) Low gas pressure		assembly
		B) Dirty or partially
		clogged ODS/pilot
	6.	Thermocouple connec-	6.	Hand tighten until snug,
		tion loose at control		then tighten 1/4 turn
		valve		more
	7.	Thermocouple damaged	7.	Replace thermocouple
	8.	Control valve damaged	8.	Replace control valve

Continued

103310