Before I start taking the boiler apart can someone please advise if the symptoms below indicate that the DHW Primary or Secondary (plate) heat exchanger needs cleaning?
I’ve read quite a few posts and they seem to contradict!
Symptoms: water stays hot for a while, then goes cold, then back to hot & so on. The burner turns off, the temperature lights drops from 80 to 50, burner comes back on.
I think it's the DHW plate (secondary) heat exchanger I need to descale?
Thanks
Adam
I’ve read quite a few posts and they seem to contradict!
Symptoms: water stays hot for a while, then goes cold, then back to hot & so on. The burner turns off, the temperature lights drops from 80 to 50, burner comes back on.
I think it's the DHW plate (secondary) heat exchanger I need to descale?
Thanks
Adam