PREVENTATIVE MAINTENANCE SCHEDULE
WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.
Item | How Often | How To |
Fuel tank
Air output and lint filters
Air intake filter
Flush every | See Storing, Transporting, or |
or as needed | Shipping, page 6 |
Replace every 500 hours of operation or | See Air Output, Air Intake, and |
once a year | Lint Filters, page 9 |
Wash and dry with soap and water every | See Air Output, Air Intake, and |
500 hours of operation or as needed | Lint Filters, page 9 |
Fuel filter | Clean twice a heating season or as needed | See Fuel Filter, page 10 |
Ignitor | No maintenance required |
|
Fan blades | Clean every season or as needed | See Fan, page 9 |
Motor | Not required/permanently lubricated |
|
TROUBLESHOOTING
WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.
FAULT CONDITION | POSSIBLE CAUSE | REMEDY |
Motor does not start five sec- onds after heater is plugged in
1.No power to heater
2.ON/OFF switch not in the ON() position
3.If equipped, thermostat setting is too low
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. | Bad electrical connection be- | 4. | Check all electrical connec- |
| tween motor and ignition con- |
| tions. See Wiring Diagrams, |
| trol assembly or ignition con- |
| page 16 |
| trol assembly and power cord |
|
|
5. | Binding pump rotor | 5. | If fan does not turn freely, see |
|
|
| Pump Rotor, page 14 |
6. | Defective ignition control as- | 6 | Replace ignition control as- |
| sembly |
| sembly |
7. | Defective motor | 7. | Replace motor |
8. | Blown fuse or ignitor control | 8. | See Ignition Control Assem- |
| assembly |
| bly, page 15 |
www.desatech.com | 7 |
