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Hi
I have a Combi boiler that keeps losing pressure. I top up, up to 1.5, but this drops within 6 hours and the system switches off.
We have looked everywhere and cannot see a leak. I have used the Fernox F4 leak sealer, but this hasn't helped.
Any ideas?
(Yes I have had a Gas Safe Engineer out before you post that)
I have a Combi boiler that keeps losing pressure. I top up, up to 1.5, but this drops within 6 hours and the system switches off.
We have looked everywhere and cannot see a leak. I have used the Fernox F4 leak sealer, but this hasn't helped.
Any ideas?
(Yes I have had a Gas Safe Engineer out before you post that)