POSSIBLE TROUBLESHOOTING
In the event of problems the boiler stops automatically and runs the shutdown process and the display shows text regar-
ding the motivation of the shutdown (see the various alarms below).
Never pull the plug during shutdown on account of malfunction.
press the button ESC.
INDICATION OF POSSIBLE CAUSES OF MALFUNCTION AND INDICATIONS AND REMEDIES (shown only on the
control panel on board the boiler):
1) Signalling:
AL 01 (take action if the water temperature sensor is out of order or disconnected).
Actions:
- Check connection of the sensor to the control board.
- Verify functionality by means of a cold test
2) Signalling:
AL 02 Failure of fume expulsion motor (this trips if the smoke extraction speed sensor detects a fault)
Actions:
3) Signalling:
SF (H3) Stop/Flame:
Flame may fail for any of the following reasons:
Actions:
- lack of pellets
correspond to over heated fumes (technical assistance centre)
problem.
4) Signalling:
AF (H4) Failed ignition
ignition temperature is not reached).
Distinguish either of the following cases:
Flame does NOT appear
Actions:
Check: - combustion chamber position and cleanliness;
- arrival of combustion air in the combustion chamber;
- if the heating element is working (DEALER);
Flames appear, but AF appears on the display after Ar.
Actions:
Check: (only by the Dealer)
- if the thermocouple is working (DEALER);
- start-up temperature setting in the parameters (DEALER).
5) Signalling: AL 05
Problem:
Turns off due to lack of electricity
Actions:
Problem:
Turns off due to thermo coupling failed or disconnected
Actions:
7) Signalling: AL 07 over heated fumes (turns off due to exceeding maximum smoke temperature).
Problem:
Switches off because of overheated fumes.
8) Signalling: AL 08 H2O temp alarm
Problem:
Shuts down due to water temperature being higher than 90 °C.
An excessive temperature may occur because of the following:
(not a defect of the boiler).
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