Desa CDVBN(A), CDVBP(A) installation manual Observed Problem Possible Cause Remedy

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Burner does not light after pilot is lit

1.

Burner orifice clogged

1.

Clean burner (see Cleaning and

Maintenance, page 26) or replace burner

orifice

2.

Inlet gas pressure is too low

2.

Contact local propane/LP or natural gas

company

3.

Thermopile leads disconnected or im-

3.

Reconnect leads (see Wiring Diagram,

properly connected

page 30)

4.

Thermopile is defective

4.

Replace thermopile

Delayed ignition burner

1.

Manifold pressure is too low

1.

Contact local propane/LP or natural gas

company

2.

Burner porting or orifice clogged

2.

Clean burner (see Cleaning and Main-

tenance, page 26) or replace burner orifice

Burner backfiring during combustion

1.

Burner orifice is clogged or damaged

1.

Clean burner (see Cleaning and

Maintenance, page 26) or replace burner

orifice

2.

Damaged burner

2.

Replace damaged burner

3.

Gas regulator defective

3.

Replace gas control

Burner system produces a whistling noise

1.

Turning gas control knob to HI position

1.

Turn gas control knob to LO position and

when 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 pro-

pane/LP or natural gas company

3.

Dirty or partially clogged burner orifice

3.

Clean burner (see Cleaning and

Maintenance, page 26) or replace burner

orifice

Glass soots

1.

Flame impingement on logs

1.

Adjust the log set so that the flame does

not excessively impinge on it

2.

Debris around burner air mixer

2.

Inspect the opening at the base of the

burner to see that it is NOT packed with

any type of material

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