Evolution EV AC
32
24 FAILURES
This section provides a list of the most common burner and boiler failures.
Burner failures:
We have already mentioned that the burner is equipped with a cut-out system indicated by a light.
It could accidentally become blocked, and in this case the button light would come on. It should be
unblocked by pressing the button.
FAILURE CAUSE SOLUTION
- Fuel valve closed Open it
- No electricity supply to boiler Check it
- Nozzle defective or dirty Replace or clean it
- Electrodes badly adjusted Adjust them
- Time programmer in automatic position Turn it to manual
BURNER DOES
NOT IGNITE
- Room or boiler thermostat badly adjusted Correctly adjust it
- Nozzle defective Replace it
- Photoelectric cell dirty Clean it
- Fume circuit obstructed Clean it
FREQUENT
CUT-OUT
- Oil filter of installation or burner pump dirty Clean it
Boiler failures
FAILURE CAUSE SOLUTION
- The pump is not turning Unblock the pump
RADIATOR
DOES NOT
HEAT UP
- Air in hydraulic circuit Drain the installation and
the boiler (the automatic
air drain valve cap must
always be loose)
- Burner badly adjusted Adjust it correctly
- Flue not correctly sealed Eliminate any leaks
- Flame unstable Examine the burner
EXCESSIVE
NOISE
- Flue not insulated Suitably insulate it
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