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2012 Sierra 6.0 AC issues
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Question
Summit15101
Hello I have a 2012 3500 with a 6.0 in it and recently when I click the AC button all it does is flash 3 times then turns off. It is 24 Celsius here so it should turn on. I have checked the fuse and swapped relays around and checked the wiring to the compressor and found nothing wrong. Does any one have any suggestions on what it would be? Or what else to look for ?
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