Desa VyS18NC - Manual (Page 24)

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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
POSSIBLE CAUSE
1. Heater burning vapors from
paint, hair spray, glues,
cleaners, chemicals, new
carpet, etc. (See IMPOR-
TANT statement above)
2. Low fuel supply (propane/
LP only)
3. Gas leak. See Warning
statement above
1. Not enough fresh air is
available
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
control valve and burner
2. Gas leak. See Warning
statement above
REMEDY
1. Open window and ventilate
room. Stop using odor
causing products while
heater is running
2. Refill supply tank (propane/
LP only)
3. Locate and correct all leaks
(see Checking Gas Con-
nections, page 14)
1. Open window and/or door
for ventilation
2. Contact local natural or
propane/LP gas company
3. Clean ODS/pilot (see
Cleaning and Maintenance,
page 19)
1. Locate and correct all leaks
(see Checking Gas Con-
nections, page 14)
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 14)
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.