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105564
NATURAL GAS HEATER
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. 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.
www.desatech.com
REMEDY
1. Ventilate room. Stop using odor-causing
products while heater is running
2. Locate and correct all leaks (see Check-
ing Gas Connections, page 10)
1. Open window and/or door for ventila-
tion
2. Contact local natural gas company
3. Clean ODS/pilot (see Cleaning and
Maintenance, page 13)
1. Locate and correct all leaks (see Check-
ing Gas Connections, page 10)
2. Replace control valve
1. Take apart gas tubing and remove for-
eign matter
2. Locate and correct all leaks (see Check-
ing Gas Connections, page 10)
1. Refer to Fresh Air for Combustion and
Ventilation requirements (page 4)
POSSIBLE CAUSE
1. Heater burning vapors from paint, hair
spray, glues, etc. (See
IMPORTANT
statement above)
2. Gas leak.
See Warning statement at
top of page
1. Not enough fresh air is 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 control valve
and burner
2. Gas leak.
See Warning statement at
top of page
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 noticed on windows
