How do you recharge an air conditioner on an RV?

To recharge an RV air conditioner, first, ensure the unit is off and locate the low-pressure service port. Attach a refrigerant gauge to the port, and then connect a can of the appropriate refrigerant. Start the AC unit and monitor the pressure; add refrigerant until it reaches the recommended level, usually indicated on the gauge. Always follow safety precautions and consider consulting a professional if you're unsure about the process.