www.desatech.com
121255-01A
20
TROUbLESHOOTING
Continued
POSSIBLE CAUSE
1. When heated, vapors from
furniture polish, wax, carpet
cleaner, etc., may turn into
white powder residue
1. Not enough fresh air is
available
2. Low line pressure
3. OD S/pil ot i s p arti al ly
clogged
1. Heater burning vapors from
paint, hair spray, glues, etc. See
IMPORTANT
statement above
2. Low fuel supply (propane/
LP gas only)
3. Gas leak.
See Warning
statement at top of page
1. Gas leak.
See Warning
statement at top of page
2. Control valve defective
1. Foreign matter between
control valve and burner
2. Gas leak.
See Warning
statement at top of page
1. Air in gas line
2. Air passageways on heater
blocked
3. Dirty or partially clogged
burner orifice
REMEDY
1. Turn heater off when us
-
ing furniture polish, wax,
carpet cleaners or similar
products
1. Open window and/or door
for ventilation
2. Contact local natural or
propane/LP gas company
3. Clean ODS/pilot (see
Cleaning
, page 16)
1. Ventilate room. Stop us
-
ing odor causing products
while heater is running
2. Refill supply tank
3. Locate and correct all leaks
(see
Checking Gas Con-
nections
, page 12)
1. Locate and correct all leaks
(see
Checking Gas Con-
nections
, page 12)
2. Replace control valve
1. Take apart gas tubing and
remove foreign matter
2. Locate and correct all leaks
(see
Checking Gas Con-
nections
, page 12)
1. Operate burner until air is
removed from line. Have gas
line checked by local natural
or propane/LP gas company
2. Observe minimum installa
-
tion clearances (see Figure
4, page 8)
3. Clean burner (see
Clean-
ing
, page 16) or replace
burner orifice
OBSERvED PROBLEM
White powder residue form
-
ing within burner box or on
adjacent walls or furniture
Heater shuts off in use (ODS
operates)
Heater produces unwanted
odors
Gas odor even when control
knob is in OFF position
Gas odor during combustion
Heater produces a whistling
noise when burner is lit
WARNING: If you smell gas
• Shut off gas supply.
• Do not try to light any appliance.
•
Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Fol
-
low the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT:
Operating heater where impurities in air exist may create odors. Cleaning sup
-
plies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc.,
create fumes. These fumes may mix with combustion air and create odors.
