www.desatech.com
118620-01E
24
TROUBLESHOOTING
Continued
OBSERvED PROBLEM
Yellow flame during burner
combustion
Slight smoke or odor during
initial operation
Heater produces a whistling
noise when burner is lit
White powder residue forming
within burner box or on adja
-
cent walls or furniture
Heater produces a clicking/
ticking noise just after burner
is lit or shut off
Remote does not function
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
3. Clogged or dirty burner
1. Residues from manufactur
-
ing processes
1. Turning control knob to 5
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
white powder residue
1. Metal expanding while
heating or contracting while
cooling
1. Pilot light not lit or control
knob in wrong position
2. Batteries not installed
correctly. Batteries not in
-
stalled. Battery power is
low
3. Code settings on receiver
and remote control do not
match
4. Receiver and remote con
-
trol too far apart
REMEDY
1. Check burner for dirt and
debris. If found, clean
burner (see
Cleaning and
Maintenance
, page 21)
2. Replace gas regulator
3. Clean burner (see
Cleaning
and Maintenance
, page 21)
1. Problem will stop after a few
hours of operation
1. Turn control knob to 1 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 installa
-
tion clearances (see Figure
4, page 8)
4. Clean burner (see
Cleaning
and Maintenance
, page 21)
or replace burner orifice
1. Turn heater off when us
-
ing furniture polish, wax,
carpet cleaners or similar
products
1. This is normal with most
heaters. If noise is exces
-
sive, contact qualified ser
-
vice person
1. Check pilot light. Make sure
control knob is in the ON
position
2. Check battery placement in
receiver and remote control.
Replace batteries in re-
ceiver and remote control
3. Verify code settings
4. Be sure receiver and re
-
mote control are within
20’-25’ operating range
