Valliant 631 37kw heat only f62 intermittent fault | Plumbing Jobs | The Job-board | Plumbers Forums
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Discuss Valliant 631 37kw heat only f62 intermittent fault in the Plumbing Jobs | The Job-board area at Plumbers Forums

king of pipes

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Digital Temperature read out jumping about a bit my diagnosis is PCB on it's way out any one had this . Kop
 
Sorted chaps cheers. kop

20190110_135332.jpg
 

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