why does my Porsche 911 992 (2019-Present) AC blow warm air after running for a while?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical systems.

2. Refrigerant Check and Recharge

• Tools Required: Manifold gauge set, refrigerant, safety glasses, gloves.
• Connect the manifold gauge set to the high and low-pressure ports of the AC system.
• Assess the pressure readings against manufacturer specifications.
• If low, recover the existing refrigerant if necessary, and recharge the system using the correct type and amount of refrigerant.

3. Inspect and Replace Cabin Air Filter

• Tools Required: Screwdriver or trim removal tool.
• Locate the cabin air filter housing, usually behind the glove box.
• Remove the glove box or cover to access the filter.
• Take out the old cabin air filter and inspect it for dirt and damage.
• Install a new cabin air filter, ensuring it is oriented correctly for airflow.

4. AC Compressor Inspection

• Tools Required: Multimeter, basic hand tools.
• Visually inspect the AC compressor for any signs of damage or leaks.
• Use a multimeter to check the electrical connections and ensure the compressor is receiving power.
• If the compressor is faulty, replace it following manufacturer guidelines.

5. Blend Door Actuator Check

• Tools Required: Basic hand tools.
• Remove the dashboard or necessary paneling to access the blend door actuator.
• Inspect the actuator for proper movement and function.
• If defective, replace the blend door actuator with a new unit.