Desa CGN18B, RN30B Trouble- Shooting, Continued, see Cleaning and, Maintenance, page

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.ODS/pilot is clogged

6.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.Clean ODS/pilot (see Cleaning and Mainte- nance, page 21) or replace ODS/pilot assembly

6.Replace gas regulator

22

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.	Manual shutoff valve	3.	Fully open manual
		not fully open		shut-off valve
	4.	Thermocouple connec-	4.	Hand tighten until
		tion loose at control		snug, then tighten 1/4
		valve		turn more
	5.	Pilot flame not touch-	5.	A) Contact local
		ing thermocouple,		natural gas company
		which allows thermo-
		couple to cool, causing		B) Clean ODS/pilot
		pilot flame to go out.		(see Cleaning and
		This problem could be		Maintenance, page 21)
		caused by one or both		or replace ODS/pilot
		of the following:		assembly
		A) Low gas pressure
		B) Dirty or partially
		clogged ODS/pilot
	6.	Thermocouple dam-	6.	Replace thermocouple
		aged
	7.	Control valve damaged	7.	Replace control valve
Burner does not light	1.	Burner orifice is	1.	Clean burner (see
after ODS/pilot is lit		clogged		Cleaning and Mainte-
				nance, page 21) or
				replace burner orifice

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