www.desatech.com
119347-01A
tROUbLESHOOtING
Continued
OBSERVED PROBLEM
Slight smoke or odor during initial
operation
Moisture/condensation noticed
on windows
Heater produces a whistling noise
when burner is lit
White powder residue forming
within burner box or on adjacent
walls or furniture
Heater produces a clicking/tick-
ing noise just after burner is lit
or shut off
REMEDY
1. Check burner for dirt and
debris. If found, clean burner
(see
Cleaning and Mainte-
nance
, page 18)
2. Replace gas regulator
3. Problem will stop after a few
hours of operation
1. Refer to
Air for Combustion
and Ventilation
requirements
(page 5)
1. Turn control knob to LO posi-
tion and let warm up for a
minute
2. Operate burner 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 burner (see
Cleaning
and Maintenance
, page 18) or
replace burner orifice
1. Turn heater off when using
furniture polish, wax, carpet
cleaners or similar products
1. This is normal with most heat-
ers. If noise is excessive, contact
qualified service person
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
3. Residues from manufacturing
processes and log curing
1. Not enough combustion/ven-
tilation air
1. Turning control knob to HI
position when burner is cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. may turn into a
white powder residue
1. Metal expanding while heating
or contracting while cooling
f i r e - p a r t s . c o m
