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  1. W

    Wallstar 15/20 green light but nothing else

    No, it's not red still clear
  2. W

    Wallstar 15/20 green light but nothing else

    Yeah doesn't do anything
  3. W

    Wallstar 15/20 green light but nothing else

    Yeah doesn't do anything
  4. W

    Wallstar 15/20 green light but nothing else

    I wouldn't know where to start with testing for voltages
  5. W

    Wallstar 15/20 green light but nothing else

    I changed it a couple of years ago and it worked so I thought it might be the same problem again. But it didn't work this time. Just trying to look for a new controller/program box nowthe one I have is old so I'm guessing that some wiring will be needed Thanks for the help
  6. W

    Wallstar 15/20 green light but nothing else

    Yes it's a system boiler, I have changed the Honeywell three way valve, when you say programmer do you mean the controller which you can switch on water or central heating or set timers?
  7. W

    Wallstar 15/20 green light but nothing else

    I have a old wallstar 15/20 boiler, I have green power light but nothing else, no red reset or limit light on, no hot water or heating..tank full of oil....any advise appreciated
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