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  1. M

    Saunier Duval Thema Condens F24E pressure dropping daily

    spot on - it is not dry but when we had the service donw it had been raining so we didn't notice it. I think we have found the source of the pressure drop. There is a small stream of water trickling down from the little copper pipe sticking out below the flue. Our gas man says that this is...
  2. M

    Saunier Duval Thema Condens F24E pressure dropping daily

    Thanks, I have noticed that the towel radiator which is only about 6 metres away from the boiler, has had some external gunk where one of the rungs joins the vertical post about 4 rungs up from the bottom. If there is a small leak there could that cause the continued drop in pressure?
  3. M

    Saunier Duval Thema Condens F24E pressure dropping daily

    Our boiler is nearly 3 years old and has recently had an annual service and passed fine. We have heating and hot water without problem but for the past few weeks we are having to top up the pressure once or twice daily to keep it above 0.6. From reading other posts am I right in assuming we are...
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