why does my Porsche 911 992 (2019-Present) AC blow warm air even when set to cold?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is turned off.
• Disconnect the battery before working on the electrical components.

2. Recharge Refrigerant

• Tools Required: Manifold gauge set, refrigerant (R134a or R1234yf depending on the system).
• Attach the low and high-pressure hoses of the manifold gauge set to the corresponding service ports on the AC system.
• Start the engine and turn the AC to maximum cold.
• Check the pressure readings; if low, add refrigerant until the system reaches the recommended pressure.

3. Inspect and Replace Components

• Tools Required: Socket set, screwdrivers, multimeter.
• Inspect the AC compressor for any visible leaks or damage. If defective, disconnect the electrical connector and remove the compressor by loosening the mounting bolts.
• Install the new compressor, ensuring all seals are replaced, and torque the bolts to the manufacturer's specifications.
• Reconnect the electrical connector and any hoses removed during replacement.

4. Test and Verify System Operation

• Start the engine and allow the AC to run for a few minutes.
• Monitor the system pressures with the manifold gauge to ensure they are within specifications.
• Check for any unusual noises and ensure the airflow is cold from the vents.