chris sanders

Sat 23 Jun 2012 12:00am

it depends what parts were fitted but it sounds like the boiler is over heating, this can be caused by a few things but the most likley cause is the plate heat exchanger is scaled up and not allowing the correct heat transfer. Any good engineer should be able to help.

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sevket bektas

Sun 24 Jun 2012 12:00am

I will say that the gas valve modulator should be checked, it might not modulate to the low rate and thus the boiler over heating.

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