How to clear fault
Over heat red is the most common error message
It can be caused by:
1) Airlock trapped in the heating pipes
2) The antifreeze is not of the correct strength
3) Fluid level low in the expansion tank
4) The circulation pump is not working
5) Red sensor or PCB failure
6) 12 volt supply to boiler is unstable (most common)
14 сен 2020
