Carrier 58 PAV control board flashes non-stop indicating a reverse polarity I don't know what this means and if I can fix this. The AC works but no heat. The blower comes on but no heat. Any help would be greatly appreciated.
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Carrier 58 PAV control board flashes non-stop indicating a reverse polarity I don't know what this means and if I can fix this. The AC works but no heat. The blower comes on but no heat. Any help would be greatly appreciated.
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