Our old but reliable Worcester 9.24 boiler has suddenly started needing the water to be topped up every day. There are no obvious leaks anywhere. Can anyone please offer any suggestions? Thanks
Thanks for the suggestion. When husband gets back from work he will have a look. One other thing. The heating has just been put on and the pressure was a 1.25 but since going on it has risen to 2.25 does this help with diagnosis?
Its a fairly hefty jump that, and it could indicate that the expansion vessel in the boiler needs recharging with air...it won't cause the water leak though. If its not the PRV the next thing to look at is the automatic air vent - but if its a daily top up I doubt it.
John
is this a constant cycle now, does the boiler get topped up, then when water heated up inside, pressure go down to 0 again?? and so on..... if so probably expanion vessel problem (charge lost over time, or a few other things wrong with it). check the prv outside when the heating is on and the pressure gauge rises.
Yes the pressure is up to 3 or just under when the boiler is on then when we turn it off the pressure drops very low, so far the lowest has been just above 0.
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