my Porsche 911 992 (2019-Present) AC is blowing warm air, how to fix it?

Solution

1. Preparation

• Tools Required: Safety goggles, gloves, OBD-II scanner, refrigerant gauge set, multimeter.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the battery negative terminal to ensure safety while working on electrical components.

2. Recharge Refrigerant

• Tools Required: Refrigerant gauge set, R-134a refrigerant.
• Check the refrigerant levels using the gauge set. If low, connect the refrigerant canister to the low-pressure service port.
• Open the valve on the refrigerant canister slowly and monitor the pressure gauge, ensuring it reaches the manufacturer-recommended level.
• Disconnect the canister and ensure no refrigerant leaks.

3. Inspect and Replace AC Components

• Tools Required: Socket set, wrenches, torque wrench, new AC compressor (if needed), new condenser (if needed).
• If the compressor is not engaging, use a multimeter to test the electrical connections. If faulty, replace the AC compressor.
• To replace the compressor, remove the mounting bolts, disconnect the refrigerant lines, and carefully lift out the compressor.
• Install the new compressor, ensuring all connections are tight and secure.
• If the condenser is blocked or damaged, remove it by unscrewing the mounting bolts and disconnecting the refrigerant lines. Install the new condenser in reverse order.

4. Test AC System

• Reconnect the battery terminal and start the engine.
• Turn on the AC to the maximum setting and monitor for cold air.
• Check for any unusual noises or leaks around the newly installed components.