Desa UNVENTED (VENT-FREE) PROPANE/LP GAS FIREPLACE Owner's Operating & Installation Manual page 30

TROUBLE-
SHOOTING
Continued
30
OBSERVED POSSIBLE
PROBLEM CAUSE
Delayed ignition of one 1. Manifold pressure is too
or both burners
2. Burner orifice(s) clogged
3. Mislocated crossover
Burner backfiring during 1. Burner orifice is clogged
combustion
2. Damaged burner
3. Gas regulator defective
Yellow flame in front 1. Not enough air
burner during burner
combustion
2. Gas regulator defective
Slight smoke or odor 1. Residues from manufac-
during initial operation
Fireplace produces a 1. Turning control knob to
whistling noise when
burners are lit
2. Air in gas line
3. Air passageways on
4. Dirty or partially clogged
Moisture/condensation 1. Not enough combustion/
noticed on windows
low
tube
or damaged
turing processes and logs
curing
HI position when burners
are cold
fireplace blocked
burner orifice(s)
ventilation air
REMEDY
1. Contact local propane gas
company
2. Clean burner(s) (see Cleaning and
Maintenance, page 28) or replace
burner orifice(s)
3. Contact qualified service person
1. Clean burner (see Cleaning and
Maintenance, page 28) or replace
burner orifice
2. Replace damaged burner
3. Replace gas regulator
1. Check burner(s) for dirt and
debris. If found, clean burner(s)
(see Cleaning and Maintenance,
page 28)
2. Replace gas regulator
1. Problem will stop after a few
hours of operation
1. Turn control knob to LO position
and let warm up for a minute
2. Operate burners until air is
removed from line. Have gas line
checked by local propane gas
company
3. Observe minimum installation
clearances (see page 11)
4. Clean burners (see Cleaning and
Maintenance, page 28) or replace
burner orifice(s)
1. Refer to Air for Combustion and
Ventilation requirements (page 6)
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