Alph 240E making very strange noise even when it is switched of from the mains. when it happens last week, the pressure was low, so I filled up and the noise disappear. the pressure now is at one and there is no demand for DHW or CH the noise stared again and it stays even when I switch it off the mains. any idea why.?
Alph 40 E making very strange noise even when it is switched of from the mains
- Thread starter Zehroni
- Start date
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doubt very much if it is the boiler, unless you are losing boiler pressure with it electrically isolated
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1/4 turn taps can make a horrific vibrating rumbling noise.
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