Desa WMN20A - Manual (Page 22)

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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.
POSSIBLE CAUSE
1. Heater burning vapors from
paint, hair spray, glues, etc.
(see IMPORTANT state-
ment above)
2. Low fuel supply (propane/
LP gas 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
1. Not enough combustion/
ventilation air
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
Moisture/condensation no-
ticed on windows
REMEDY
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 13)
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 18)
1. Locate and correct all leaks
(see Checking Gas Con-
nections, page 13)
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 13)
1. Refer to Air for Combustion
and Ventilation require-
ments (page 5)
TRoUBlesHooTING
Continued