Preventative Maintenance Schedule; Troubleshooting - Desa BTU/HR Owner's Manual

PREVENTATIVE MAINTENANCE SCHEDULE

WARNING: Never service heater while it is plugged in, operating,
or hot. Severe burns and electrical shock can occur.
Item
Fuel tank
Air output and lint filters
Air intake filter
Fuel filter
Ignitor
Fan blades
Motor
WARNING: Never service heater while it is plugged in, operating,
or hot. Severe burns and electrical shock can occur.
FAULT CONDITION
Motor does not start five sec-
onds after heater is plugged in
113282-01C
How Often
Flush every 150-200 hours of operation
or as needed
Replace every 500 hours of operation or
once a year
Wash and dry with soap and water every
500 hours of operation or as needed
Clean twice a heating season or as needed
No maintenance required
Clean every season or as needed
Not required/permanently lubricated

TROUBLESHOOTING

POSSIBLE CAUSE
1. No power to heater
2. ON/OFF switch not in the
ON(|) position
3. If equipped, thermostat setting
is too low
4. Bad electrical connection be-
tween motor and ignition con-
trol assembly or ignition con-
trol assembly and power cord
5. Binding pump rotor
6. Defective ignition control as-
sembly
7. Defective motor
8. Blown fuse or ignitor control
assembly
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How To
See Storing, Transporting, or
Shipping, page 6
See Air Output, Air Intake, and
Lint Filters, page 9
See Air Output, Air Intake, and
Lint Filters, page 9
See Fuel Filter, page 10
See Fan, page 9
REMEDY
1. Check circuit breaker in elec-
2. Verify the ON/OFF switch is in
3. Turn thermostat knob to a
WARNING: High voltage!
4. Check all electrical connec-
5. If fan does not turn freely, see
6 Replace ignition control as-
7. Replace motor
8. See Ignition Control Assem-
trical panel
ON (|) position and light is on
higher setting
tions. See Wiring Diagrams,
page 16
Pump Rotor, page 14
sembly
bly, page 15
7