Recent content by Archie3cat

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    Ariston Combi DHW problem.

    My Ariston combi 27 MFFI has got this fault :- Everything seems to be working as normal for heating but the hot water is only running mildly warm. With the heating supposedly switched to DHW I have checked the heating pipe coming away from the boiler and it is warming up. Would I be correct in...
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    Ariston micro Genus 27MFFI

    Many thanks for your prompt replies. I have done a couple of tests this morning and ...guess what..it is behaving perfectlly now! (I suppose it's like going to the doctor). It is going up to the 70 light and staying there with a very good hot water flow. On one occasion it did drop to 60 but...
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    Ariston micro Genus 27MFFI

    Problem on DHW. The boiler works perfectly on heating but when hot water is called for the the flow is good (normal) the temperature rises (on the indicator lights) to 70, the water is nice and hot. After a few seconds the flame cuts out, the pump keeps running and the flame reignites after...
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    Ariston micro Genus 27MFFI

    Many thanks for your prompt reply,all things being equal I think I will leave well alone! Cheers, Ivan.
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    Ariston micro Genus 27MFFI

    Further to the recent valued advice I took the positive step of replacing the secondary heat exchanger. I found this very easy to do as I could take off the diverter valve actuator, it is only held in with a circlip. Problem solved, hot water supply back to normal. Can I perhaps pose another...
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    Ariston micro Genus 27MFFI

    Many thanks again for the replies. This type of informative help is like 'gold-dust' to me. I will post my results in due course...Regards, Ivan.
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    Ariston micro Genus 27MFFI

    Many thanks chaps for your kind advices. I am a retired industrial engineer and used to whacking great coal burning boilers so these clever little units are a bit fiddly for me! I have got a local quote for a replacement exchanger which seems reasonable at £70 +vat so can I prevail upon you with...
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    Ariston micro Genus 27MFFI

    I would like some help to solve a problem with my non condensing Ariston combi 27 MFFI, it could be over 4 yrs old. It works perfectly on CH but recently on DHW after about, say, 3 minutes the burner shuts off when the 70 temp. LED has been on for about 15 seconds. The 70 light goes off for...
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