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 seconds 1. | No power to heater |
after heater is plugged in | Thermostat setting is too low |
2. |
1.Check circuit breaker in elec- trical panel
2.Turn thermostat knob to a higher setting
WARNING: High voltage!
| 3. | Bad electrical connection be- | 3. | Check all electrical connec- | ||
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| tween motor and ignition con- |
| tions. See Wiring Diagrams, | ||
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| trol assembly or ignition control |
| page 15 | ||
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| assembly and power cord |
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| 4. | Binding pump rotor | 4. | If fan does not turn freely, see | ||
| 5. | Defective ignition control as- |
| Pump Rotor, page 14 | ||
| 5. | Replace ignition control as- | ||||
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| sembly |
| sembly | ||
| 6. | Defective motor | 6. | Replace motor | ||
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Motor starts and runs but heater | 1. No fuel in tank | 1. | Fill tank with kerosene | |||
does not ignite | 2. Pump pressure incorrect | 2. | See Pump Pressure Adjust- | |||
| 3. | Dirty fuel filter |
| ment, page 10 | ||
| 3. | See Fuel Filter, page 11 | ||||
| 4. | Obstruction in nozzle | 4. | See Nozzle Assembly, page 12 | ||
| 5. | Water in fuel tank | 5. | Drain and flush fuel tank with | ||
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| clean kerosene. See Storing, | |
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| Transporting, or Shipping, | |
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| page 7 | |
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| WARNING: High voltage! |
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| 6. | Bad electrical connection | 6. | Check electrical connections. | ||
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| between ignitor and ignition |
| See Wiring Diagrams , page 15 | ||
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| control assembly |
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| 7. | Defective ignitor | 7. | Replace ignitor, see page 11 | ||
| 8. | Defective ignition control as- | 8. | Replace ignition control as- | ||
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| sembly |
| sembly | ||
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Heater ignites but ignition control | 1. Pump pressure incorrect | 1. | See Pump Pressure Adjust- | |||
assembly shuts heater off after a | 2. Dirty air intake, air output, |
| ment, page 10 | |||
short period of time | 2. | See Air Output, Air Intake, and | ||||
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| and/or lint filter |
| Lint Filters, page 10 | ||
| 3. | Dirty fuel filter | 3. | See Fuel Filter, page 11 | ||
| 4. | Obstruction in nozzle | 4. | See Nozzle Assembly, page 12 | ||
| 5. | Photocell assembly not properly | 5. | Make sure photocell boot is | ||
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| installed (not seeing the flame) |
| properly seated in bracket | ||
| 6. | Dirty photocell lens | 6. | Clean photocell lens | ||
WARNING: High voltage!
7.Bad electrical connection be- tween photocell and ignition control assembly
8.Defective photocell
9.Defective ignition control as- sembly
7.Check electrical connections. See Wiring Diagrams, page 15
8.Replace photocell
9.Replace ignition control as- sembly
8 | www.desatech.com |
