My Glow-worm boiler pressure keep fluctuating only when the central heating is on. Every time I refill it to 1 bar it goes from 1 bar to almost 4.0 bar. The when the central heating switches off, it goes to 0 bar after a while.
There are no leaks. The radiators have just been bled. The expansion vessel has a pressure of 1 bar.
My suspicion is the that the expansion vessel needs to be replaced.????
Has anyone experienced a similar problem? Does any one have a solution? I would be very grateful.
Many thanks,
JohnnyDee
There are no leaks. The radiators have just been bled. The expansion vessel has a pressure of 1 bar.
My suspicion is the that the expansion vessel needs to be replaced.????
Has anyone experienced a similar problem? Does any one have a solution? I would be very grateful.
Many thanks,
JohnnyDee