Programmer makes high pitched noise

Grizza · 21 Feb 2010

Potterton EP6000 keeps making a high pitched noise. If I move it about slightly it goes. I can't find any lose or dirty electrical connections. Could there be any other reason?
If I need to replace has anyone a favourite or recommendation please?

Boilerman2 · 21 Feb 2010

It can only be an Electronic problem, get shot & fit a Honeywell ST9400, they are easy to operate and reliable

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Programmer makes high pitched noise

Grizza

Boilerman2

DIYnot Local

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