Desa VN3000D, VN1800ITA, VN1800D TROUBLE- Shooting, Observed Possible Remedy Problem Cause

Page 27

TROUBLE- SHOOTING

Continued

OBSERVED	POSSIBLE		REMEDY
PROBLEM	CAUSE		REMEDY

When ignitor button is	1.	Gas supply turned off or	1.	Turn on gas supply or
pressed in, there is a		manual shutoff valve		open manual shutoff
spark at ODS/pilot but		closed.		valve.
no ignition.	2.	Control knob not fully	2.	Fully press in control
		pressed in while pressing		knob while pressing igni-
		ignitor button (non-		tor button (non-thermo-
		thermostat models only).		stat models only).
		Thermostat control knob		Fully press in thermostat
		not fully pressed in while		control knob while press-
		pressing ignitor button		ing ignitor button (ther-
		(thermostat models only).		mostat models only).
	3.	Air in gas lines when	3.	Continue holding down
		installed.		control knob. Repeat
				igniting operation until
				air is removed.
	4.	ODS/pilot is clogged.	4.	Clean ODS/pilot (see
				Cleaning and Mainte-
				nance, page 26) or
				replace ODS/pilot
				assembly.
	5.	Gas regulator setting is	5.	Replace gas regulator.
		not correct.
	6.	Thermostat control knob	6.	Turn thermostat control
		not in pilot position.		knob to pilot position.

ODS/pilot lights but	1.	Control knob not fully
flame goes out when		pressed in.
control knob is	2.	Control knob not pressed
released		in long enough.
	3.	Manual shutoff valve not
		fully open.
	4.	Thermocouple connection
		loose at control valve.
	5.	Pilot flame not touching
		thermocouple, which
		allows thermocouple 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 damaged.
	7.	Control valve damaged.
	8.	Safety interlock system
		has been triggered
		(thermostat models only).

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 Mainte- nance, page 26) or replace ODS/pilot assembly.

6.Replace thermocouple.

7.Replace control valve.

8.Wait one minute for safety interlock system to reset. Repeat ignition operation.

Continued

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualContents Safety Information Combustion and Ventilation, pages 5 through Local Codes Unpacking Product Features ProductIdentification Producing Adequate Ventilation Fresh AIR ForCombustion VentilationFresh AIR for Combustion and Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air from Outdoors Ventilation Air From OutdoorsLocating Heater Installing To WallInstallation Items Check GAS TypeAttaching Thermostat Sensing Bulb Thermostat Sensing BulbModels VN1800ITA and VN2550ITA Only Locating Thermostat Sensing BulbMethods For Attaching Mounting Bracket To Wall Installing Heater to WallMounting Bracket Removing Front Panel Of HeaterAttaching Mounting Bracket To Wall Marking Screw LocationsPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsConnecting to GAS Supply Servicing. Correct all leaks at once Pressure Testing GAS Supply Piping SystemChecking GAS ConnectionsChecking GAS Connections Pressure Testing Heater GAS ConnectionsOperating Heater Lighting Instructions Operating HeaterTo Select Heating Level HeaterShutting Off Burner Only pilot stays lit Shutting Off HeaterInjury or loss of life Explosion may result causing property damage, personalOperating If you do not follow these instructions exactly, a fire orModels VN1800D and VN3000D LOW MED High Pilot Flame Pattern Inspecting BurnerIf burner flame pattern is incorrect, as shown in Figure Burner Flame PatternAir Passageways Cleaning and Maintenance Trouble ShootingODS/PILOT and Burner Orifice CabinetTROUBLE- Shooting Observed Possible Remedy Problem CauseSee Cleaning Trouble ShootingIng statement at If you smell gasShut off gas supply Do not try to light any applianceTechnical Service Service Publications HintsVN1800D VN3000D Accessories Replacement PartsModel VN1800ITA Illustrated Parts BreakdownParts List Model VN2550ITA Parts List Model VN1800D Control Position Label Hardware Assembly Model VN3000D Parts List Keep this Warranty Warranty Information