I have an Isar HE30 combi boiler that has deteriorated in its hot water performance over the last year. Had someone come to look at it this week - I said I suspected it was scaled up but he suggested the thermistor needed replacing.
He ordered one and came back 2 days later but it turned out it wasn't the thermistor. He's now ordered a new plat heat exchanger I think but hasn't returned when he said he would and we haven't heard from him.
I'll be getting someone else to sort it instead, but will it defo need replacing or can it be de-scaled in any way?
Thanks
He ordered one and came back 2 days later but it turned out it wasn't the thermistor. He's now ordered a new plat heat exchanger I think but hasn't returned when he said he would and we haven't heard from him.
I'll be getting someone else to sort it instead, but will it defo need replacing or can it be de-scaled in any way?
Thanks