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combi boiler leaks

Joined
11 Feb 2009
Messages
3
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Location
Somerset
Country
United Kingdom
my combi boiler is leaking water from overflow pipe and radiator pressure increases by itself.
 
My psychic powers are telling me he has left the filling loop partly open!
 
Details dear boy details.

Our psychic powers switch off at 5pm.
hot water/heating still works.radiator pressure is increasing(now at 3.2 bar) and overflow pipe outside house is constantly dripping. filling loop is not connected at present. system is a worcester 24i junior.
 
It cannot keep on increasing for ever by expansion.

The DHE heating element is failed and DHW is leaking into the heating circuit.

To confirm this close boiler cold feed valve and leave hot tap on. Heating pressure should then stabilise.

Tony
 

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