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  1. R

    Yellow marks on new boiler

    sorry don't know if that worked, will try again
  2. R

    Yellow marks on new boiler

    151874/27606_4//media.diynot.com/152000_151874_27606_45466330_thumb.jpg5466330.jpg
  3. Untitled

    Untitled

  4. boiler

    boiler

  5. R

    Yellow marks on new boiler

    No smokers, and it's on the otherwise of the room from cooker so presumably rules out food related smoke/steam. I'm working on a photo, typing from phone at the mo tho. Thanks for replies thus far.
  6. R

    Yellow marks on new boiler

    Hi, I had a Worcester greenstar 30si fitted just over a month ago and it has been running great. However, the last couple of days I have noticed some yellow marks appear on the control panel, around the timer and heating controls. They're circular patterns, and appear symmetrical on the far left...
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