boiler loses pressure when heating is on,lost 1.2bar in 4 1/2 hours no sign of leaks has happened on 2 consecutive days. ok just done some more checking and am discharging water from discharge safety valve could valve be faulty
. The pressure went up 4.5bar over night (gone up and down from 1.2bar to 3.0 bar )with no heating onfor a couple of weeks then it has gone to norm 1.2 bar.tuesday went to 4.5 bar , replaced pressure sensor and still showing 4.5 bar exv seems ok 0.5 ,wiggled braided pipe incase blocked , al to no avail . Prv seems ok no indicatoin of waterIs the pressure only rising when the heating is on or is it rising regardless. Can't imagine your using the heating now.
Is there water coming out of the pressure relief pipe at any time?
F9 can be a number of things, but best to start with basics.
I would:
check EV is correct pressure, clean seating of PRV, check filling loop isnt passing.
hi again ,Is the pressure only rising when the heating is on or is it rising regardless. Can't imagine your using the heating now.
Is there water coming out of the pressure relief pipe at any time?
F9 can be a number of things, but best to start with basics.
I would:
check EV is correct pressure, clean seating of PRV, check filling loop isnt passing.
was isolated all last night .Sry filling loop ok .Also just removed the wiring connection 4.pm 22/7/10 on the water pressure sensor and on the pcb and it still reads 4.5 bar . might it be elecrical ,Try isolating the cold supply into the boiler for a period of time like over night and see if that stops it.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local