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

 

 

 

of the electrical system (120 V

 

 

 

 

- 60 Hz)

 

 

 

 

B) Check that the switch

 

 

 

 

works and is in the correct

 

 

 

 

position

 

 

 

 

C) Check that the fuse has not

 

 

 

 

blown

 

2.

Incorrect setting on the thermo-

2.

Check that the thermostat

 

 

stat (if fitted)

 

setting is correct (e.g. the

 

 

 

 

temperature setting on the

 

 

 

 

thermostat must be higher than

 

 

 

 

the ambient temperature)

 

3.

Faulty thermostat

3.

Replace the thermostat

 

4.

Motor winding burnt out or

4.

Replace the motor

 

 

broken

5.

Replace the bearings

 

5.

Bearings of motor have seized

 

 

up

6.

Replace the capacitor

 

6.

Motor capacitor has burned

 

 

out

7.

Connect thermostat plug

 

7.

Thermostat plug not connected

114909-01A

www.desatech.com

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Desa 160-IF, 280-IF owner manual Preventative Maintenance, Troubleshooting, Observed Fault Possible Cause Solution

160-IF, 280-IF specifications

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