Desa EFS26NRA Owner's Operation And Installation Manual page 30

Desa owner's operation and installation manual unvented (vent-free) gas compact classic hearth fireplace vmh26prb, vmh26nrb, efs26nra, efs26pra
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OBSERVED PROBLEM
Slight smoke or odor during ini-
tial operation
Fireplace produces a whistling
noise when burner is lit
White powder residue forming
within burner box or on adjacent
walls or furniture
Moisture/condensation noticed on
windows
30
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Residues from manufactur-
ing processes and log curing
2. Not enough air
3. Gas regulator defective
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
1. Not enough combustion/ven-
tilation air
www.desatech.com
REMEDY
1. Problem will stop after a few
hours of operation
2. Check burner for dirt and de-
bris. If found, clean burner
(see Cleaning and Mainte-
nance, pages 26 and 27)
3. Replace gas regulator
1. Turn control knob to LO posi-
tion and let warm up for a minute
2. Operate burner until air is re-
moved from line. Have gas
line checked by local natural
gas company
3. Observe minimum installation
clearances (see pages 10
through 12)
4. Clean burner (see Cleaning and
Maintenance, pages 26 and 27)
or replace burner orifice
1. Turn fireplace off when using
furniture polish, wax, carpet
cleaners, or similar products
1. Refer to Air for Combustion
and Ventilation requirements
(page 6)
113110-01A

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