CLAS CH 0022, Manual

20

CH 0022

CH 0023

CH 0024

CH 0025

CH 0026

TROUBLESHOOTING AND REPAIR

Anomalies

Causes and repairs

The generator does not start 

(red light is off)

Make sure that:

- the electrical connection is correct

- If a room thermostat is installed, check that it is not set below the 

room temperature.

The fan does not work (red 

light is off)

Check :

- the motor power cable; 

- the F1 protection fuse

- the fuel pump; if it is seized, it must be replaced.

The fan comes on but there 

is no combustion (after a few 

seconds the RESET button 

lights up)

- Check the fuel level; 

- Check that the fuel filter is not clogged;

- Check that the nozzle is not clogged;

- Check that there is no air in the fuel system:

Make sure that the glass ball of the fuel filter is properly screwed in and 

that the O-ring seal is properly positioned in its seat.

- The photocell is dirty: remove it from its support and clean it.

- Check that the plastic seal between the motor and the fuel pump is in 

good condition: if it is broken, it must be replaced.

- The combustion control box is defective: replace it.

- Check whether there is a spark between the electrodes. If not, check 

position and

If not, check the position and condition of the electrodes and high 

voltage cables. Check if the transformer is burned.

The device overheats during 

use

- Fuel flow is too high due to nozzle wear or normal operation. Use of a 

nozzle with different characteristics than the original.

- Combustion air flow is too low due to incorrect adjustment of the 

combustion head fins.

- Obstructions in the ventilation air path.

When the unit is switched off 

by 

or the room thermostat, the 

fan does not start and the 

generator overheats.

and the generator will 

overheat.

- The cooling thermostat is defective.

It must be replaced.

The device emits white smoke

- Excessive combustion air or poor quality fuel.

- Impurities in fuel; clean tank, glass and lines. Replace fuel.

- Air setting has been changed; reset fins to original position.

The device emits black smoke

- Too little combustion air or too much fuel flow due to

due to :

- Nozzle is out of adjustment or not in compliance: replace;

- Incorrect fuel pressure;

- Deflector disk is clogged: clean.

- Incorrect air setting: reset the fins to their original position.