Desa HDCFTP Owner's Operation And Installation Manual page 25

OBSERVED PROBLEM
Yellow flame during burner
combustion
Slight smoke or odor during initial
operation
Fireplace produces a whistling
noise when burner is lit
White powder residue forming
within burner box or on adjacent
walls or furniture
111044-01E
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
1. Residues from manufacturing
processes
1. Turning control knob to HI
position when burner is cold
2. Air in gas line
3. Air passageways on fireplace
blocked
4. Dirty or partially clogged
burner orifice
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
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REMEDY
1. Check burner for dirt and
debris. If found, clean burner
(see Cleaning and Mainte-
nance, page 22)
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 burner until air is
removed from line. Have gas
line checked by local propane/
LP gas company
3. Observe minimum installation
clearances (see Figures 7 and
8, page 9)
4. Clean burner (see Cleaning
and Maintenance, page 22)
or replace burner orifice
1. Turn heater off when using
furniture polish, wax, carpet
cleaners, or similar products
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