Desa UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE Trouble Shooting, Continued, Cleaning and Mainte

Models: UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE

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TROUBLE-

TROUBLE-

SHOOTING

Continued

28

OBSERVED

POSSIBLE

 

 

PROBLEM

CAUSE

REMEDY

 

 

 

 

 

One or both burners

1.

Burner orifice(s)

1.

Clean burner(s) (see

do not light after

 

clogged

 

Cleaning and Mainte-

ODS/pilot is lit

 

 

 

nance, page 26) or

 

2.

Burner orifice(s)

 

replace burner orifice(s)

 

2.

Replace burner orifice(s)

 

 

diameter is too small

 

 

 

3.

Inlet gas pressure is

3.

Contact local natural gas

 

 

too low

 

company

 

4.

Mislocated crossover

4.

Contact qualified service

 

 

tube

 

person

 

 

 

 

 

Delayed ignition of

1.

Manifold pressure is

1.

Contact local natural gas

one or both burners

 

too low

 

company

 

2.

Burner orifice(s)

2.

Clean burner(s) (see

 

 

clogged

 

Cleaning and Mainte-

 

 

 

 

nance, page 26) or

 

3.

Mislocated crossover

 

replace burner orifice(s)

 

3.

Contact qualified service

 

 

tube

 

person

 

 

 

 

 

Burner backfiring

1.

Burner orifice is

1.

Clean burner (see

during combustion

 

clogged or damaged

 

Cleaning and Mainte-

 

 

 

 

nance, page 26) or

 

2.

Damaged burner

 

replace burner orifice

 

2.

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

 

 

 

 

 

Yellow flame in front

1.

Not enough air

1.

Check burner(s) for dirt

burner during burner

 

 

 

and debris. If found,

combustion

 

 

 

clean burner(s) (see

 

 

 

 

Cleaning and Mainte-

 

2.

Gas regulator defective

 

nance, page 26)

 

2.

Replace gas regulator

 

 

 

 

Slight smoke or odor

1. Residues from manu-

1.

Problem will stop after a

during initial opera-

 

facturing processes

 

few hours of operation

tion

 

and logs curing

 

 

 

 

 

 

Fireplace produces a

1. Turning control knob

1.

Turn control knob to LO

whistling noise when

 

to HI position when

 

position and let warm up

burners are lit

 

burners are cold

 

for a minute

 

2.

Air in gas line

2.

Operate burners until air

 

 

 

 

is removed from line.

 

 

 

 

Have gas line checked

 

 

 

 

by local natural gas

 

3.

Air passageways on

 

company

 

3.

Observe minimum

 

 

fireplace blocked

 

installation clearances

 

4.

Dirty or partially

 

(see page 11)

 

4.

Clean burners (see

 

 

clogged burner

 

Cleaning and Mainte-

 

 

orifice(s)

 

nance, page 26) or

 

 

 

 

replace burner orifice(s)

101742

Page 28
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Desa UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE installation manual Trouble Shooting, Continued, Cleaning and Mainte