Ever since we had a thunderstorm last week, the pressure guage on my boiler has gone from the green band when cold to number 3. We have drained the water out the radiator untill it goes back to the green band but as soon as I finish it goes back up to number 3 within 5 mins! I have been doing this every night since friday! Please help I cant afford a new boiler!
Your filling loop when closed still letting by water in to system
try removeing flex filling loop pipe and see if it is dripping.
or your plate DHW is leaking within.
Mr K
June 2009
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