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- 23 Jul 2022
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Hi I noticed that the pressure in the boiler had dropped slightly so went to top it up. I could hear the water going into the boiler bit the needle on the pressure gauge didn't move. Put a bit more in.....nowt the needle still didn't move. Thought forget and tapped it and went in the shower. Looked and the needle had gone up to 3 bar so thought that it most have stuck so bled a radiator until I got it to 1 bar. Looked yesterday night and the pressure had dropped a little but the needle didn't go up when I turned the hot water on. So I fired up the rads as I know that the needle would move. Rads on for half hour but the needle didn't shift. Since the rads have been on the needle has overnight gone to 0. I presume that it's still safe to use at 0 as I dont know how much water is in there due to the needle not shifting when I try to top it up. Could it be a faulty gauge or faulty expansion vessel or both? Thanks