Air conditioner blowing hot

Hello, air conditioning operation is not solely controlled by "sensors" and "actuators". There is a protocol of testing for the air conditioning system. System pressures of refrigerant is checked. If that is "good", but the compressor does not start, the compressor is checked for power. If power is present, there could be a coil or clutch problem with the compressor. If it's not present, there could be an issue with a cycle switch or something else electrically. If system pressures are not good, you'll have to resolve that. If the air conditioning system under the hood is working and getting cold, but inside the car it blows warm, there is a climate control problem that needs diagnostic testing. There's simply no easy suggestion. Hands on testing by skilled, certified personnel is essential. Handling refrigerants requires certification with EPA standards. In California, the Bureau of Automotive Repair requires certain criteria be followed every time an air conditioning system is checked. I'd recommend finding a trusted shop near you for guidance and assistance. Good luck.