TROUBLESHOOTING

Continued

WARNING: If you smell gas

Shut off gas supply.

Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor’s phone. Fol- low the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire department.

IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These fumes may mix with combustion air and create odors.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

Burner backfiring during com-

1. Burner orifice is clogged or

1.

Clean burner orifice (see Clean-

bustion

 

damaged

 

ing and Maintenance, page 7)

 

 

2.

Inlet gas pressure is too low

 

or replace burner orifice

 

 

2.

Replace propane/LP gas

 

 

3.

Burner damaged

 

cylinder

 

 

3.

Replace burner

 

 

4.

Gas regulator defective

4.

Replace gas regulator

 

 

 

 

 

Slight smoke or odor during

1. Residues from manufacturing

1.

Problem will stop after a few

initial operation

 

processes

 

hours of operation

 

 

 

 

 

 

Heater produces unwanted

1. Heater burning vapors from

1.

For outdoor use only. Stop

odors

 

paint, hair spray, glues, etc.

 

using odor-causing products

 

 

 

See IMPORTANT statement

 

while heater is running

 

 

 

above

2.

Replace propane/LP gas

 

 

2.

Low fuel supply

 

 

 

 

 

cylinder

 

 

3.

Gas leak. See Warning

3.

Locate and correct all leaks

 

 

 

statement at top of page

 

 

 

 

 

 

 

Heater shuts off in use

1. Not enough fresh air is avail-

1.

For outdoor use only. Provide

 

 

 

able

 

adequate ventilation

 

 

2.

Low line pressure

2.

Replace propane/LP gas

 

 

3.

ODS/pilot is partially

 

cylinder

 

 

3.

Clean ODS/pilot (see Cleaning

 

 

 

clogged

 

and Maintenance, page 7)

 

 

4.

Tip over switch activated

4.

Relight heater

 

 

 

from bumping heater

 

 

 

 

 

 

 

 

 

Gas odor even when control knob

1. Gas leak. See Warning

1.

Locate and correct all leaks

is in OFF position

 

statement at top of page

 

 

 

 

 

2.

Control valve defective

2.

Replace control valve

10

www.desatech.com

114082-01A

Page 10
Image 10
Desa SPC-21PHTSA Burner backfiring during com Burner orifice is clogged or, Bustion Damaged, Heater shuts off in use