Desa VN1000B installation manual TROUBLE- Shooting, Observed Possible Remedy Problem Cause

TROUBLE- SHOOTING

OBSERVED	POSSIBLE	REMEDY
PROBLEM	CAUSE

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 20) or replace ODS/pilot assembly

6.Replace gas regulator

ODS/pilot lights but	1.	Control knob not fully
flame goes out when		pressed in
control knob is	2.	Control knob not
released		pressed in long enough
	3.	Manual shutoff valve
		not fully open
	4.	Thermocouple connec-
		tion loose at control
		valve
	5.	Pilot flame not touch-
		ing thermocouple,
		which allows thermo-
		couple to cool, causing
		pilot flame to go out.
		This problem could be
		caused by one or both
		of the following:
		A) Low gas pressure
		B) Dirty or partially
		clogged ODS/pilot
	6.	Thermocouple dam-
		aged
	7.	Control valve damaged

1.Press in control knob fully

2.After ODS/pilot lights, keep control knob pressed in 30 seconds

3.Fully open manual shut-off valve

4.Hand tighten until snug, then tighten 1/4 turn more

5.A) Contact local natural gas company

B) Clean ODS/pilot (see Cleaning and Maintenance, page 20) or replace ODS/pilot assembly

6.Replace thermocouple

7.Replace control valve

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