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keston

  1. M

    keston c36 combi too hot water

    My Keston C36 combi boiler is acting up - the water's getting way too hot. It's hitting around 90 degrees when in use. And then bounces back to 40s. The led indicator for DHW also turns ON/OFF while temperatures bounces. (PFA) Any ideas what might be causing this or how I can fix it? To add...
  2. Si23r

    Keston boiler help needed

    Hi, i have a keston boiler I have an issue where it gets far too hot, when i put heating on the radiators are scolding... i have a 1 year old so its no good, i have to turn boiler on and off at main switch as it is just too much. Is there anything i can do to stop it getting too hot? Tia
  3. JoeMic

    Keston separate temp for heating & hot water

    In an effort to control my extremely high gas consumption, I turned down the "flow setpoint" temperature on my Keston Heat 55 boiler from 70 degrees to 48 degrees. This has substantially reduced my gas usage. I have underfloor heating and this new temperature seems to be high enough for that...
  4. D

    Keston C55

    Hi, I have a keston C55 - fully serviced by British Gas. The unit has a long standing problem with errors, E30 and E123 (E30 - Difference between flow and return temparatures too high, E123 - no info in manual) British Gas have fitted a new fan, new pump, heat exchange (2 years ago), new...
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