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.
To start the boiler up again after a shutdown, let the shutdown procedure end (10 minutes marked by a beep) tand then
press the button ESC.
Do not turn the boiler on again before checking the cause of the malfunction and CLEANING/ EMPTYING the crucible.
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).
Problem:
Shuts down due to the water temperature sensor being broken 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)
Problem:
Shutdown for smoke extraction speed fault detection
Actions:
• Check smoke extractor function (devolution sensor connection) and board (DEALER).
• Check smoke channel for dirt
• Verify the electrical system and earthing system.
• Check eletronic circuit board (DEALER).
3) Signalling:
SF (H3) Stop/Flame: (this trips if the thermocouple detects a smoke temperature lower than the value set,
which it interprets as the absence of fl ames)
Problem:
Turns off due to drop in smoke temperature
Flame may fail for any of the following reasons:
Actions:
- lack of pellets
- too many pellets have suffocated the fl ame, check pellet quality (DEALER)
• Check whether the maximum thermostat has caused the problem (rare circumstance since this would
correspond to over heated fumes (technical assistance centre)
• Check whether the pressure switch has cut off electricity to the gear motor because of a blocked fl ue or other
problem.
4) Signalling:
AF (H4) Failed ignition (intervenes if a fl ame fails to appear within a maximum of 15 minutes, or if
ignition temperature is not reached).
Problem:
Turns off due to incorrect smoke temperature during ignition
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);
- room temperature (if lower than 3°C use a fi relighter) and damp.
- Try to light with a fi relighter.
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 black out stop (not a defect of the boiler).
Problem:
Turns off due to lack of electricity
Actions:
• Check electricity connection and drops in voltage.
6) Signalling: AL 06 broken or disconnected thermocouple
Problem:
Turns off due to thermo coupling failed or disconnected
Actions:
• Check connection of thermo coupling to board: Check function in cold test (DEALER).
7) Signalling: AL 07 over heated fumes (turns off due to exceeding maximum smoke temperature).
Problem:
Switches off because of overheated fumes.
Over heated fumes may depend on: type of pellets, anomalous fume extraction, blocked channel, incorrect
installation, gear motor drift, lack of air vents in the room.
- 43
-