Q: Air conditioning on 2005 Ford Expedition

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Usually when I turn my A/C on I her the clutch kick on. Now I turn on my A/C and hear nothing and it blows hot air. How can I troubleshoot this problem?
(1) Answer
(1) Comments
Some main reasons the compressor will not activate:
1) refrigerant pressures too low - due to low refrigerant level (leak?)
2) compressor coil or clutch worn out or inoperative
3) A/C cycle switch failure

I would start by having the system pressure checked. Good luck.