I have a problem with the pressure it goes up to 3bar when running then goes down nearly to empty when off. I've blead all the radiators and all are full with no air pockets .I have noticed a small leak from the pressure release valve could that be the problem, and is it a DIY repair or do I need a plumer.
valliant combi
- Thread starter minhydra
- Start date
DIYnot Local
Staff member
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