Ferolli Falcon II boiler: I switched the system off when I went on my holidays, on my return, the CH did not work, the DHW is fine.
I have tried to rotate the grunfdos pump , it seems to be jammed, is this the likely cause of the problem ?
This is the 2nd problem that I have expereinced with the boiler, I did repalce some thermistors last year because the CH was intermittent, this cured the problem
I have tried to rotate the grunfdos pump , it seems to be jammed, is this the likely cause of the problem ?
This is the 2nd problem that I have expereinced with the boiler, I did repalce some thermistors last year because the CH was intermittent, this cured the problem