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  1. L

    Worcester 28Si II Red light flashing

    Thanks Gas2Air. The pressure sensor is a bit funny. It doesn't move straight away e.g. if I put the pressure up now it won't register any change for a while, if at all. Are these a big job to change/unblock to ensure I am getting a correct reading? Thanks again.
  2. L

    Worcester 28Si II Red light flashing

    Hi, It was showing adequate pressure (1.5ish) but I have just put the pressure up to 'max' and all the noises have stopped and it seems to be working fine. Could an underpressured system be the cause of the initial symptoms I described? Thanks again.
  3. L

    Worcester 28Si II Red light flashing

    Thanks Boilerdoktor - just a slightly random question - is it common for the pressure gauge to fail on these boilers?
  4. L

    Worcester 28Si II Red light flashing

    Hi, I have the above boiler and over the last week or two the red light has started to flash. Sometimes fast, sometimes slow. I have read the manual but it only provides limited information and no suggestions for long term remedy. Resetting does work sometimes but the problem returns. The...
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