Desa RG30NT ODS/pilot lights but flame goes, Press in control knob fully, Leased Long enough

Page 21

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

ODS/pilot lights but flame goes

1. Control knob not fully pressed in

1.

Press in control knob fully

out when control knob is re-

2. Control knob not pressed in

2.

After ODS/pilot lights, keep con-

leased

 

long enough

 

trol knob pressed in 30 seconds

 

3.

Safety interlock system has

3.

Wait one minute for safety in-

 

 

been triggered

 

terlock system to reset. Repeat

 

4.

Equipment shutoff valve not

 

ignition operation

 

4.

Fully open equipment shutoff

 

 

fully open

 

valve

 

5.

Thermocouple connection

5.

Hand tighten until snug, then

 

 

loose at control valve

 

tighten 1/4 turn more

 

6.

Pilot flame not touching ther-

6.

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

 

 

 

problem could be caused by

 

Cleaning and Maintenance,

 

 

one or both of the following:

 

page 19) or replace ODS/pilot

 

 

A) Low gas pressure

 

assembly

 

 

B) Dirty or partially clogged

 

 

 

 

ODS/pilot

 

 

 

7.

Thermocouple damaged

7.

Replace pilot assembly

 

8.

Control valve damaged

8.

Replace control valve

 

 

 

 

Burner does not light after ODS/

1. Burner orifice is clogged

1.

Clean burner (see Cleaning

pilot is lit

 

 

 

and Maintenance, page 19)

 

 

 

 

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 (see Cleaning

 

 

 

 

and Maintenance, page 19)

 

 

 

 

or replace burner orifice

 

 

 

 

Burner backfiring during com-

1. Burner orifice is clogged or

1.

Clean burner (see Cleaning

bustion

 

damaged

 

and Maintenance, page 19)

 

2.

Burner damaged

 

or replace burner orifice

 

2.

Replace burner

 

3.

Gas regulator defective

3.

Replace gas regulator

114683-01B

www.desatech.com

21

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Contents What to do if YOU Smell GAS Table of Contents Poisoning may lead to death Safety InformationProduct Features Local CodesUnpacking Providing Adequate Ventilation AIR for Combustion VentilationFollowing are excerpts from National Fuel Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation AIR InstallationCheck GAS Type Ventilation Air From Inside BuildingLocating Heater Installation ItemsThermostat Sensing Bulb Thermostat Models Only Installing Heater to WallMounting Bracket Removing Front Panel Of HeaterPlacing Heater On Mounting Bracket Attaching To Wall Anchor MethodInstalling Bottom Mounting Screws Installing Bottom Mounting ScrewsTypical Inlet Pipe Diameter Connecting to GAS SupplyTest Pressures Equal To or Less Than Checking GAS ConnectionsPsig 3.5 kPa EquipmentMake sure control knob of heater is in the OFF position Open equipment shutoff valve see ,Manual Control Models For Your Safety Read Before Lighting Operating HeaterLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureShutting Off Heater Shutting Off Burner Only pilot stays litThermostat Control Operation Pilot Flame Pattern Inspecting HeaterBurner Flame Pattern Check pilot flame pattern and burner flame pat- tern oftenODS/PILOT and Burner Cleaning MaintenanceBurner Pilot AIR Inlet CabinetObserved Problem Possible Cause Remedy TroubleshootingSafety interlock system has Out when control knob is re Control knob not pressedDelayed ignition of burner Manifold pressure is too low Burner orifice is clogged Clean burner see CleaningOperation Processes Hours of operation Or shut off Qualified service personTurning control knob to Air passageways on heaterStatement above Gas leak. See WarningSpecifications BG30N, FG30N, GG30N, RG30N, GMG30NBG30P, FG30P, GG30P, RG30P, GMG30P Technical Service Service HintsService Publications Replacement Parts Parts Under WarrantyIllustrated Parts Breakdown NJF 8C Parts ListIllustrated Parts Breakdown NJF 8C Equipment Shutoff Valve GA5010 AccessoriesFAN Kits GA3250T For all models. Equipment shutoff valve with 1/8 NPT tapParts Centrals Warranty Information Keep this WarrantyLimited Warranty VENT-FREE Residential GAS Heaters
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