www.desatech.com
113052-01A
22
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Metal expanding while heating
or contracting while cooling
1. When heated, vapors from fur-
niture polish, wax, carpet
cleaner, etc., may turn into
white powder residue
1. Heater burning vapors from
paint, hair spray, glues, etc. See
IMPORTANT
statement above
2. Low fuel supply (propane/LP gas)
3. Gas leak.
See Warning
statement at top of page
1. N o t e n o u g h f r e s h a i r i s
available
2. Low line pressure
3. ODS/pilot is partially clogged
1. Gas leak.
See Warning
statement at top of page
2. Control valve defective
1. Foreign matter between con-
trol valve and burner
2. Gas leak.
See Warning
statement at top of page
1. Not enough combustion/ven-
tilation air
REMEDY
1. This is common with most heat-
ers. If noise is excessive, con-
tact qualified service person
1. Turn heater off when using
furniture polish, wax, carpet
cleaners, or similar products
1. Ventilate room. Stop using
odor causing products while
heater is running
2. Refill supply tank
3. Locate and correct all leaks
(see Checking Gas Connec-
tions, pages 12 and 13)
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 19)
1. Locate and correct all leaks
(see Checking Gas Connec-
tions, pages 12 and 13)
2. Replace control valve
1. Take apart gas tubing and re-
move foreign matter
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, pages 12 and 13)
1. Refer to Fresh Air for Com-
bustion and Ventilation re-
quirements (page 5)
OBSERVED PROBLEM
Heater produces a clicking/tick-
ing noise just after burner is lit
or shut off
White powder residue forming
within burner box or on adja-
cent walls or furniture
Heater produces unwanted
odors
Heater shuts off in use (ODS
operates)
Gas odor even when control
knob is in OFF position
Gas odor during combustion
Moisture/condensation noticed
on windows
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.
Follow 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 supplies,
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.
