Recent content by nighttripper

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    Keston 50 boiler - mysterious red flashing LED?!?

    May I ask what this check is?
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    Keston boiler - repair or replace?

    Sorry to hijack this thread, but I too have a Keston 50 with a problem. The sight glass has either broken or melted and the escape of hot gas (I assume) caused the thermal fuse to blow. But I can't figure out what caused the sight glass to fail. The heat exchanger and burner seem OK. I'd...
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