OWNER’S MANUAL
TROUBLESHOOTING
Note: For additional help, visit DESA International’s Technical Service web site at www.desatech.com.
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 after heater | 1. No power to heater | 1. Check circuit breaker in electrical panel |
is plugged in |
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WARNING: High voltage!
2.Bad electrical connection between mo- tor and ignition control assembly or ig- nition control assembly and power cord
3.Blown fuse on ignition control assembly
4.Binding pump rotor
5.Defective ignition control assembly
6.Defective motor
2.Check all electrical connections. See Wiring Diagrams, page 10
3.See Ignitor, page 7
4.If fan does not turn freely, see Pump Ro- tor, page 8
5.Replace ignition control assembly
6.Replace motor
Motor starts and runs but heater does not | 1. | No fuel in tank | 1. | Fill tank with kerosene |
ignite | 2. | Pump pressure incorrect | 2. | See Pump Pressure Adjustment, page 6 |
| 3. | Dirty fuel filter | 3. | See Fuel Filter, page 7 |
| 4. | Obstruction in nozzle | 4. | See Nozzle Assembly, page 8 |
| 5. | Water in fuel tank | 5. | Drain and flush fuel tank with clean |
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| kerosene. See Storing, Transporting, or |
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| Shipping, page 4 |
WARNING: High voltage!
6.Bad electrical connection between igni- tor and ignition control assembly
7.Defective ignitor
8.Defective ignition control assembly
6.Check electrical connections. See Wir- ing Diagrams, page 10
7.Replace ignitor, see page 7
8.Replace ignition control assembly
Heater ignites but ignition control assembly | 1. | Pump pressure incorrect | 1. | See Pump Pressure Adjustment, page 6 | |
shuts heater off after a short period of time | 2. | Dirty air intake, air output, and/or lint | 2. | See Air Output, Air Intake, and Lint Fil- | |
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| filter |
| ters, page 6 | |
| 3. | Dirty fuel filter | 3. | See Fuel Filter, page 7 | |
| 4. | Obstruction in nozzle | 4. | See Nozzle Assembly, page 8 | |
| 5. | Photocell assembly not properly in- | 5. | Make sure photocell boot is properly | |
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| stalled (not seeing the flame) |
| seated in bracket | |
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| WARNING: High voltage! |
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| 6. | Dirty photocell lens | 6. | Clean photocell lens | |
| 7. | Bad electrical connection between pho- | 7. | Check electrical connections. See Wir- | |
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| tocell and ignition control assembly |
| ing Diagrams, page 10 | |
| 8. | Defective photocell | 8. | Replace photocell | |
| 9. | Defective ignition control assembly | 9. | Replace ignition control assembly | |
www.desatech.com
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