my Skoda Octavia NFL (2020-Present) AC is blowing hot air what should I do

Solution

1. Preparation

• Gather tools and parts needed:
  • Tools: OBD-II scanner, refrigerant pressure gauge, basic hand tools (screwdrivers, pliers, socket set), multimeter
  • Parts: AC refrigerant (if low), cabin air filter (if clogged)

2. Check and Refill Refrigerant

• Sub-steps:
  1. Connect the refrigerant pressure gauge to the low-pressure service port of the AC system.
  2. Read the pressure; if low, proceed to refill.
  3. Follow manufacturer specifications to add refrigerant until the correct level is achieved.
  4. Disconnect the gauge and secure the service port cap.

3. Inspect and Replace Cabin Air Filter

• Sub-steps:
  1. Locate the cabin air filter compartment, usually behind the glove box.
  2. Remove the glove box if necessary to access the filter.
  3. Take out the old air filter and inspect for dirt and clogs.
  4. Install a new cabin air filter, ensuring it is oriented correctly according to airflow direction.

4. Test AC Compressor and Components

• Sub-steps:
  1. Start the engine and turn on the AC to maximum setting.
  2. Using a multimeter, check for voltage at the AC compressor connector.
  3. If no voltage is present, trace wiring back to the AC control module and inspect for shorts or breaks.
  4. If voltage is present but the compressor does not engage, replace the AC compressor.