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Yep. The gauge acts oddly when I re-pressure it. Until recently I would put in some water, stop the water going in, and the gauge would rise slowly afterwards - taking 10 minutes to rise by a bar, until finally it would stop rising. i.e. the gauge seemed to take 10 minutes to catch up with the...

I don’t know if my combi boiler and system (a) has a water leak or (b) just has a faulty water pressure gauge. The gauge reads 0 bars when the boiler’s not being used and has cooled down. It reads 1.5 bars if it’s running. The boiler appears to work fine (hot water & heating works) even though...