PREVENTATIVE
MAINTENANCE
To ensure that the heater continues to work properly, it is necessary to periodically clean the combustion chamber, the burner and the fan.
WARNING The following steps must be carried out before servicing the heater: turn the heater off, following the instruc- tions in the previous section; disconnect the plug from the power supply and wait for the heater to cool.
Every 50 hours of use it is necessary to:
•Dismantle the filter cartridge, remove it and clean it with clean fuel oil.
•Remove the exterior cylindrical casing and clean the inside and the blades of the fan.
•Check the condition of the cables and the high voltage connections on the electrodes.
•Dismantle the burner, clean the parts, then clean the electrodes and adjust them, if necessary, to the distance indicated in Electrode Spacing on page 7.
TROUBLESHOOTING
OBSERVED FAULT | POSSIBLE CAUSE | SOLUTION | ||
The fan does not come on and | 1. | No electric current | 1 | A) Check the characteristics |
the flame does not light |
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| of the electrical system (120 V |
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| - 60 Hz) |
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| B) Check that the switch |
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| works and is in the correct |
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| position |
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| C) Check that the fuse has not |
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| blown |
| 2. | Incorrect setting on the thermo- | 2. | Check that the thermostat |
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| stat (if fitted) |
| setting is correct (e.g. the |
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| temperature setting on the |
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| thermostat must be higher than |
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| the ambient temperature) |
| 3. | Faulty thermostat | 3. | Replace the thermostat |
| 4. | Motor winding burnt out or | 4. | Replace the motor |
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| broken | 5. | Replace the bearings |
| 5. | Bearings of motor have seized | ||
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| up | 6. | Replace the capacitor |
| 6. | Motor capacitor has burned | ||
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| out | 7. | Connect thermostat plug |
| 7. | Thermostat plug not connected | ||
www.desatech.com | 5 |
