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    Potterton promax 24 he store.....Please help with sanity...

    Our boiler is still not sorted. Engineer claims it is servicing issue and nothing wrong with the boiler. It has been extremely stressful.
  2. F

    Potterton promax 24 he store.....Please help with sanity...

    Hello, Did you manage to fix your problem? we have the same exact problem. The noise is when heating is on. If heating is off and just hot water then we don't have any problem. Engineer came and changed the expansion vessel and guaranteed me that will fix the issue but it did not. We are...
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