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  1. T

    Ariston Micro Microgenus 23 MFFI - intermittent hot water

    It might be worth taking boiler cover out and getting it covered after the cooling off period
  2. T

    Ariston Micro Microgenus 23 MFFI - intermittent hot water

    It might be worth taking boiler cover out and getting it covered after the cooling off period
  3. T

    Ariston Micro Microgenus 23 MFFI - intermittent hot water

    I managed to get this resolved by having the heat exchanger replaced. I had had it put in an acid bath previously but obviously didn't take long before it built up again, so bought a new heat exchanger for about £70, plus labor and now works a treat. Hope that helps
  4. T

    Ariston Micro Microgenus 23 MFFI - intermittent hot water

    Thank you Tony. The engineers are through a firm that have carried out some other work for me. They don't deal with Aristons alot, so the call was to clarify, but even then, Ariston have given them the wrong info. Do you know what the fault could be?
  5. T

    Ariston Micro Microgenus 23 MFFI - intermittent hot water

    I'd probably just like to add that the Heating/Rads are all fine - no issue with the heating side of things, just the hot water. The pressure has been checked, and all ok. The engineers I've had thought it could be the heat exchanger, but after speaking to Ariston 6, 7 times, they said it...
  6. T

    Ariston Micro Microgenus 23 MFFI - intermittent hot water

    Wonder if anybody could please help: I have an Ariston Microgenus 23 MFFI, and have now had a few Plumbers/Engineers to now look at this problem. They have spoken to Ariston technical helpdesk and changed parts as recommended, but still to no avail. So I am keen to rectify this without...
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