® BLUE FLAME 10,000 BTU

PROPANE/LP GAS HEATER

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

Burner does not light after ODS/pilot is lit

1.

Burner orifice is clogged

1.

Clean burner orifice (see Cleaning and

 

 

 

 

Maintenance, page 12) or replace burner

 

 

 

 

orifice

 

2.

Burner orifice diameter is too small

2.

Replace burner orifice

 

3.

Inlet gas pressure is too low

3.

Contact local propane/LP gas company

 

 

 

 

 

 

Delayed ignition of burner

1.

Manifold pressure is too low

1.

Contact local propane/LP gas company

 

2.

Burner orifice is clogged

2.

Clean burner orifice (see Cleaning and

 

 

 

 

Maintenance, page 12) or replace burner

 

 

 

 

orifice

 

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner orifice (see Cleaning and

 

 

 

 

Maintenance, page 12) or replace burner

 

 

 

 

orifice

 

2.

Inlet gas pressure is too low

2.

Contact local propane/LP gas company

 

3.

Burner damaged

3.

Replace burner

 

4.

Gas regulator defective

4.

Replace gas regulator

 

 

 

 

 

Yellow flame during burner combustion

1.

Not enough air

1.

Check burner for dirt and debris. If

 

 

 

 

found, clean burner (see Cleaning and

 

 

 

 

Maintenance, page 12)

 

2.

Inlet gas pressure is too low

2.

Contact local propane/LP gas company

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

 

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 whistling noise when

1.

Turn control knob to HI position when

1.

Turn control knob to LO position and

burner is lit

 

burner is cold

 

let warm up for a minute

 

2.

Air in gas line

2.

Operate burner until air is removed from

 

 

 

 

line. Have gas checked by local propane/

 

 

 

 

LP gas company

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

ances (see Figure 4, page 7)

 

4.

Dirty or partially clogged burner orifice

4.

Clean burner (see Cleaning and Mainte-

 

 

 

 

nance, page 12) or replace burner orifice

 

 

 

 

 

White powder residue forming within burner

1.

When heated, vapors from furniture pol-

1.

Turn heater off when using furniture

box or on adjacent walls or furniture

 

ish, wax, carpet cleaners, etc. turn into

 

polish, wax, carpet cleaners, or similar

 

 

white powder residue

 

products

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Desa VP1000BTA installation manual Maintenance