Desa FAS-5B, FAS-3B installation manual Infrared Natural GAS Heater

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INFRARED NATURAL GAS HEATER

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Burner(s) does not light after ODS/pilot is lit

1.

Burner orifice(s) is clogged

1.

Clean burner orifice(s) (see Cleaning

 

 

 

 

and Maintenance, page 14) or replace

 

 

 

 

burner orifice(s)

 

2.

Burner orifice(s) diameter is too small

2.

Replace burner orifice(s)

 

3.

Inlet gas pressure is too low

3.

Contact local natural gas company

 

 

 

 

 

Delayed ignition of burner(s)

1.

Manifold pressure is too low

1.

Contact local natural gas company

 

2.

Burner orifice(s) is clogged

2.

Clean burner orifice(s) (see Cleaning

 

 

 

 

and Maintenance, page 14) or replace

 

 

 

 

burner orifice(s)

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice(s) is clogged or damaged

1.

Clean burner orifice(s) (see Cleaning

 

 

 

 

and Maintenance, page 14) or replace

 

 

 

 

burner orifice(s)

 

2.

Burner damaged

2.

Replace burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

Burner plaque(s) does not glow

1.

Plaque damaged

1.

Replace burner

 

2.

Inlet gas pressure is too low

2.

Contact local natural gas company

 

3.

Control knob set between locked

3.

Turn control knob until it locks at de-

 

 

positions

 

sired setting

 

 

 

 

 

Slight smoke or odor during initial operation

1.

Residues from manufacturing processes

1.

Problem will stop after a few hours of

 

 

 

 

operation

 

 

 

 

 

Heater produces a clicking/ticking noise just after burner is lit or shut off

1.Metal expanding while heating or con- tracting while cooling

1.This is common with most heaters. If noise is excessive, contact qualified ser- vice person

White powder residue forming within burner box or on adjacent walls or furniture

1.When heated, vapors from furniture pol- ish, wax, carpet cleaners, etc. turn into white powder residue

1.Turn heater off when using furniture polish, wax, carpet cleaners, or similar products

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Contents Infrared VENT-FREE Natural GAS Heater What to do if YOU Smell GASSafety Information Infrared Natural GAS HeaterProduct Features Product IdentificationLocal Codes UnpackingFresh AIR for Combustion and Ventilation Producing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location Fresh AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation Installation ItemsLocating Heater Check GAS TypeInstalling Heater to Wall Mounting BracketRemoving Front Panel Of Heater Models FA-3B and FA-5B Methods For Attaching Mounting Bracket To WallAttaching Mounting Bracket To Wall Installing Bottom Mounting ScrewsPlacing Heater On Mounting Bracket Connecting to GAS Supply Typical Inlet Pipe DiametersFor Your Safety Read Before Lighting Pressure Testing Gas Supply Piping SystemPressure Testing Heater Gas Connections Operating HeaterManual Lighting Procedure Lighting InstructionsTo Select Heating Level To Turn OFF GAS to ApplianceThermostat Models FAS-3B and FAS-5B Cleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyInfrared Natural GAS Heater Top Specifications Service HintsService Publications Technical Replacement PartsAccessories Parts CentralsManual Shutoff Valve GA5010 FAN Kits UH1000FB and UHS1000FBIllustrated Parts Breakdown Burner Assembly ODS/Pilot AssemblyFA-3B Parts List KEY FA-3B DescriptionFA-5B KEY FA-5B Description ODS/Pilot Assembly Burner Assembly FAS-3BKEY FAS-3B Description QTY FAS-5B KEY FAS-5B Description QTY Warranty Information International