I've recently taken off one of my rads to do a spot of decorating. When I re-connected it, I topped up the system to about 1 bar whilst cold. After turning on the boiler the bar increased to about 1.5 bar which is to be expected. I checked a couple of days later and the bar had gone up to over 2.5 bar. I ran off some water to get the bar back down but after a day or two the bar keeps on climbing. I have bled all the rads.
Any thoughts what the problem could be. I've taken rads off before and primed the system many times but this time I'm baffled.
Thanks in advance,
Mark.
Any thoughts what the problem could be. I've taken rads off before and primed the system many times but this time I'm baffled.
Thanks in advance,
Mark.