I have a ariston eurocombi the hw is fine but the ch fires up runs almost immediately fromm 40 deg to 80deg then cuts out.l assumed it was the pump and replaced it but problem still happening it seems that the water is not circulating
i have eurocombi 2 years old and the same as happened to me, have tried all the usual suspects but no joy this is my 2 second ARISTON boiler and my last .
