TROUBLESHOOTING

TROUBLESHOOTING

Continued

15

 

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

Burner does not light after ODS/pilot is lit

1.

Burner orifice clogged

1.

Clean burner (see Cleaning and Main-

 

 

 

 

 

tenance, page 13) or replace burner

 

 

 

 

 

orifice

 

 

2.

Inlet gas pressure is too low

2.

Contact local natural or propane/LP gas

 

 

 

 

 

company

 

 

 

 

 

 

 

 

Delayed ignition burner

1.

Manifold pressure is too low

1.

Contact local natural or propane/LP gas

 

 

 

 

 

company

 

 

2.

Burner orifice clogged

2.

Clean burner (see Cleaning and Main-

 

 

 

 

 

tenance, page 13) or replace burner

 

 

 

 

 

orifice

 

 

 

 

 

 

 

 

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner (see Cleaning and Mainte-

 

 

 

 

 

nance, page 13) or replace burner orifice

 

 

2.

Damaged burner

2.

Replace damaged burner

 

 

3.

Gas regulator defective

3.

Replace gas control

 

 

 

 

 

 

 

 

Slight smoke or odor during initial operation

1.

Not enough air

1.

Check burner for dirt and debris. If

 

 

 

 

 

found, clean burner (see Cleaning and

 

 

 

 

 

Maintenance, page 13)

 

 

2.

Gas regulator defective

2.

Replace gas control

 

 

3.

Residues from manufacturing processes

3.

Problem will stop after a few hours of

 

 

 

and logs curing

 

operation

 

 

 

 

 

 

 

 

Moisture/condensation noticed on windows

1.

Not enough combustion/ventilation air

1.

Refer to Air for Combustion and Venti-

 

 

 

 

 

lation requirements (page 4)

 

 

 

 

 

 

 

 

Heater produces a whistling noise when

1.

Turning control knob to HI position

1.

Turn control knob to LO position and

 

burner is lit

 

when 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 line checked by local

 

 

 

 

 

natural or propane/LP gas company

 

 

3.

Air passageways on heater blocked

3.

Observe minimum installation clear-

 

 

 

 

 

ances (see page 7)

 

 

4.

Dirty or partially clogged burner orifice

4.

Clean burner (see Cleaning and Main-

 

 

 

 

 

tenance, page 13) or replace burner

 

 

 

 

 

orifice

 

 

 

 

 

 

 

 

Dark residue on logs or inside of fireplace

1.

Improper log placement

1.

Properly locate logs (see Installing Log

 

 

 

 

 

Set, page 11)

 

 

2.

Drafts or other air currents affecting

2.

Eliminate source of drafts around heater

 

 

 

flame pattern

 

 

 

 

 

3.

Air holes at burner inlet blocked

3.

Clean out air holes at burner inlet. Peri-

 

 

 

 

 

odically repeat as needed

 

 

4.

Burner flame holes blocked

4.

Remove blockage

 

 

 

 

 

 

 

White powder residue forming within burner

1. When heated, vapors from furniture pol-

box or on adjacent walls or furniture

ish, wax, carpet cleaners, etc. may turn

 

into white powder residue

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

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111487-01C

Page 15
Image 15
Desa CSBPT CSPBNT, CSPIPT, CSPBPT CSPINT, CSBNT installation manual Maintenance