14. FAULT MESSAGES
Low battery: If the vehicle has a battery voltage of less than 10.8 V, the boiler will stop. This is reset automatically
once the voltage reaches 11 V. If the voltage becomes lower, various error messages may also occur. These are not
genu-ine faults. Ensure that the boiler has the right voltage.
Fan restarts: Incorrect fan speed. New start attempt is made. Repeated faults results in Fan failure. If Fan failure
recurs after resetting, contact a dealer. If Fan restarts is displayed, no action is necessary.
Gas failure: The boiler has not managed to ignite the LPG flame. Ensure that gas is available.
Overheat red fail: Overheat protection (red cable) tripped. This fault can arise if the boiler is run at high power at the
same time as there are air pockets in the heating system, the heating system should then be bled properly.
If the fault remains, contact a dealer. Also check that the fluid level in the expansion tank is at least 1 cm above the
min line when cool.
Overheat blue fail: Overheat protection (blue cable) tripped.
Overheat PCB: The boiler's circuit board has overheat protection. If this gets too hot, the protection is tripped. Allow
the boiler to cool down before resetting.
*Window open: A window is open and the boiler stops running on gas. Gas operation of the boiler will restart once the
window is closed. Electrical operation continues to function.
Heater not found: There is a connection fault between the boiler and the control panel. Most probably a problem with the
heater's circuit board.
3rd party C. fail: Communication fault between Alde's panel and Alde Smart Control*.
Panel failure: Fault on the panel. May be caused by excessive moisture.
No match Heater/Panel: The circuit board in the boiler is not intended for the Alde Compact 3020 HE and will not work
with the 3020 HE panel.
Red connection fail: Problem with the red cable or red ports. There is no communication with the Alde 3020 heater,
AC or iNet.
Yellow connection fail: Problem with the cable between the Alde panel and the CI master panel or its ports.
iNet connection fail: Cannot find the INet box. Probably a problem with iNet. In the event of "INet
connection fail", this button is displayed. Pressing the button will remove the error.
To reset some of the errors and restart, switch off the boiler from the panel, disconnect 230 V to the vehicle and
disconnect 12 V from the boiler.
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