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  1. C

    No display on programming unit

    ok, thanks for the reply. i'll be calling an engineer then!
  2. C

    No display on programming unit

    Hi all, I'm having a problem with the central heating system. It's been on pretty much full time with the recent cold weather but on xmas day, there was a bit of a bang and the Drayton Tempus 6 programming unit display started to fade. The Kelston Celsius 25 boiler also lost power and the...
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