Desa FB-3B Infrared Propane/Lp Gas Heater, Troubleshooting, Continued, Observed Problem, Remedy

Models: FB-3B

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INFRARED PROPANE/LP 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 propane/LP gas company

 

 

 

 

 

Delayed ignition of burner(s)

1.

Manifold pressure is too low

1.

Contact local propane/LP 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 propane/LP 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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Desa FB-3B Infrared Propane/Lp Gas Heater, Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy