Have HVAC Questions? Ask an HVAC Expert for Answers
Hello and thanks for using this service, if you have been waiting do not worry or get upset I am just one of the techs on here and I try to get to as many customers as I can and I just picked up your question now. Please give me time to respond as typing, researching and adding links takes me time to do so please be patient and often I will ask you questions to narrow down the issue to get is diagnosed correctly.
What error code are you getting? If you look at the backside of the panel you took off match up the error code and me know.
OK when it says polarity and it does not work the board is bad. There is nothing else that will cause that error other than a defective board.
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A new board did not fix the issue??