Preventative Maintenance Schedule; Troubleshooting; Fault Condition - Desa 125T 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 seconds
after heater is plugged in
INDICATOR LIGHT
• Ignitor
8
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. Thermostat setting is too low
4. Bad electrical connection be-
tween motor and ignition con-
trol assembly or ignition control
assembly and power cord
5. Binding pump rotor
6. Blown fuse on ignition control
assembly
7. Defective ignition control
assembly
8. Defective motor
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How To
See Storing, Transporting, or
Shipping, page 7
See Air Output, Air Intake and
Lint Filters, page 10
See Air Output, Air Intake and
Lint Filters, page 10
See Fuel Filter, page 11
See Fan, page 10
REMEDY
1. Check circuit breaker in elec-
trical panel
2. Verify the ON/OFF switch is in
ON (|) position and light is on
3. Turn thermostat knob to a
higher setting
WARNING: High voltage!
4. Check all electrical connec-
tions. See Wiring Diagrams,
page 16
5. If fan does not turn freely, see
Pump Rotor, page 14
6. See Ignition Control Assembly,
page 14
7. Replace ignition control
assembly
8. Replace motor
113170-01E