Bit of a problem with my boiler, if i set it to 1bar pressure and then turn on the hot tap or shower all the pressure is lost ? if i turn just the heating on (all taps shut) then the pressure will stay and run as normal until i open a tap again any ideas please??????
when you turn a hot tap on what exactly does the gauge read. e.g does it creep up past 3 bar or drop suddenly to 0 bar.? stab in the dark but is it a cdi model.
the gauge finds its way to 0 never going above what it was set at ( 1 bar).
The pressure stays at 0 after the drop and the loop is closed , the model is a 24i junior
juniors are prone to blockages in the guage and pipework around the PRV and expansion vessel. I would start there.
be careful though, the pressure on the guage may not be the true pressure if it's blocked and the pressure on the PRV side of the flexi hose could be almost anything, undoing connections may give you a surprise.
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