Desa VRL24NR Owner's Operation And Installation Manual page 30

OBSERVED PROBLEM
Yellow flame in front/middle
burner during burner combustion
(VRL and CSG models)
Yellow flame in front burner
during burner combustion (CTB
models)
Slight smoke or odor during initial
operation
Heater produces a whistling noise
when burners are lit
White powder residue forming
within burner box or on adjacent
walls or furniture
Moisture/condensation noticed
on windows
Remote does not function
Heater produces a clicking/tick-
ing noise just after burners are lit
or shut off
30
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
1. Residues from manufacturing
processes and logs curing
1. Turning control knob to HI
position when burners are
cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice(s)
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
1. Not enough combustion/ven-
tilation air
1. Battery is not installed. Bat-
tery power is low
1. Metal expanding while heating
or contracting while cooling
www.desatech.com
REMEDY
1. Check burner(s) for dirt
and debris. If found, clean
burner(s) (see Cleaning and
Maintenance, page 26)
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 natural
or propane/LP gas company
3. Observe minimum installation
clearances (see page 8)
4. Clean burners (see Cleaning
and Maintenance, page 26)
1. Turn heater off when using
furniture polish, wax, carpet
cleaners or similar products
1. Refer to Air for Combustion
and Ventilation requirements
(page 6)
1. Replace 9-volt batteries in re-
ceiver and hand-held remote
1. This is normal with most heat-
ers. If noise is excessive, contact
qualified service person
110021-01N