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    1. #23
      Join Date
      Mar 2021
      Country Flag: United States
      Quote Originally Posted by CarlC View Post
      Sorry guys for the delay. Got hurt a while back and just now getting caught up.

      Erik, I believe you are the person that Northern called me about. Did the controller stay on after the blue wire was completely disconnected from the AC compressor/trinary switch?
      Hi Carl, sorry about you getting hurt! Hope you are ok now.
      Yes, that would be me. I disconnected everything from the unit except the three lugs. The fans come on as soon as power is applied. I tried connecting the blue to to power and ground as well, with no change. Is it possible the PWM circuit is stuck in the "on" phase?

      I am mailing back the unit to get a replacement.