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Hi Chris,
Its a wall mounted potterton suprima 40. Which is a balanced flue fan assisted boiler. As far as I know it is none pressurised.
I will check the water level of the expansion tank when i look at the pump which is in the loft...
Guess a blocked pump would seem to make sense as obviously the flow through the boiler would be virtualy non existent and it would overheat possibly producing steam pronto..... Thanks jason I will check this out .
Chrisogreero
:D Hi all,
had the pcb replaced on my potterton suprima 40 a few months back and has worked fine since. Anyhow yesterday it has started tripping out and making horrendous banging noises {sounds like air in system} notice its thrown a small amount of water out of the overflow/vent.I...