Extension Kit Single Blinks Every 2 Seconds

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My Extension Kit LED blinks once every two seconds. I can't find any guidance as to what this means. I am experiencing no CH or HW unless I manually override the boiler.

Answers

  • hjenkins
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    The article did not reflect the scenario I described (assuming I was looking at the same one you eluded to but did not reference)
  • hjenkins
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    Yes it was, the blinking was described in your article.