Central heating Boiler - hot water on and off.

GazSuttonUK · 31 Mar 2018

Ferroli Optima 1001
Heating works fine on 'timed' and manual.

But when you turn a hot water tap on, the boiler is switching on and off all the time.
Any ideas?

many thanks...

picasso · 31 Mar 2018

Plate heat exchanger blocked.

thanks

diynot

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Central heating Boiler - hot water on and off.

GazSuttonUK

picasso

DIYnot Local

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