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  1. M

    Ravenheat CSI 85 AT boiler

    THANKYOU THANKYOU Slugbaby I just screwed the front back on and it fired up straight away, so I think it must have been just the thermistors in the fist place, so I didnt need to replace the air pressure switch but nevermind it works and thats the important thing once again THANKYOU very much...
  2. M

    Ravenheat CSI 85 AT boiler

    Can anyone help My boiler has packed up and I cant fix it I have replaced the DHW & CH thermistors and now the fan works again but the boiler will still not fire unless you blow on the red tube that goes from the flue to the air pressure switch if you blow and pich the tube when it fires it will...
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