www.desatech.com
110021-01N
31
OBSERVED PROBLEM
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
Log set cycles to pilot, but room
temperature drops to a lower than
ideal level before log set comes
back on (Thermostat-Controlled
Models Only)
POSSIBLE CAUSE
1. Heater burning vapors from
paint, hair spray, glues, clean-
ers, chemicals, new carpet,
etc. (See
IMPORTANT
state
-
ment above)
2. Low fuel supply (propane/LP
only)
3. Gas leak.
See Warning
statement above
1. Not enough fresh air is avail-
able
2. Low line pressure
3. ODS/pilot is partially
clogged
1. Gas leak.
See Warning
statement above
2. Control valve defective
1. Foreign matter between con-
trol valve and burner
2. Gas leak.
See Warning
statement above
1. Thermostat sensing bulb needs
to be repositioned
REMEDY
1. Open window and ventilate
room. Stop using odor caus-
ing products while heater is
running
2. Refill supply tank (propane/LP
only)
3. Locate and correct all leaks
(see
Checking Gas Connec-
tions
, page 16)
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 26)
1. Locate and correct all leaks
(see
Checking Gas Connec-
tions,
page 16)
2. Replace control valve
1. Take apart gas tubing and
remove foreign matter
2. Locate and correct all leaks (see
Checking Gas Connections,
page 16)
1. Reposition thermostat sensing
bulb (see
Optional Positioning
of Thermostat Sensing Bulb
,
page 32)
TROUBLESHOOTING
Continued
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.
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. These odors will disappear over time.
