www.desatech.com
113061-01F
1
TRoUBlesHooTING
Continued
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
3. Clogged or dirty burner
1. Residues from manufacturing
processes
1. Turning control knob to posi
-
tion 5 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
cleaner, etc., may turn into
white powder residue
1. Metal expanding while heating
or contracting while cooling
1. Not enough fresh air is avail
-
able
2. Low line pressure
3. ODS/pilot is partially
clogged
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 adjacent
walls or furniture
Heater produces a clicking/tick
-
ing noise just after burner is lit
or shut off
Heater shuts off in use (ODS
operates)
REMEDY
1. Check burner for dirt and
debris. If found, clean burner
(see
Cleaning and Mainte-
nance
, page 16)
2. Replace gas regulator
3. Clean burner (see
Cleaning
and Maintenance
, page 16)
1. Problem will stop after a few
hours of operation
1. Turn control knob to position 1
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 Figure 4, page 8)
4. Clean burner (see
Cleaning
and Maintenance
, page 16) 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
1. Open window and/or door for
ventilation
2. Contact local natural or pro
-
pane/LP gas company
3. Clean ODS/pilot (see
Cleaning
and Maintenance
, page 16)
