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A/C is blowing warm air and not cold at all. Power to A/C compressor clutch is ok, refrigerant is fully charged but the A/C clutch is not engaging to turn on the compressor. How can I bypass the 3 wire high pressure switch? which terminal to jump to bypass pressure switch? What is the OMH reading for A/C clutch? How can I trouble shoot A/C clutch?
All fo a sudden the A/C is not cold and blowing warm air, what do I need to check first and I need help.