why does my Skoda Octavia's AC only blow hot air

Solution

1. Preparation

• Gather necessary tools and parts before starting the repair.
• Ensure the vehicle is parked in a well-ventilated area and the engine is off.
• Disconnect the battery to avoid electrical shocks.

2. Check and Replace the AC Fuse

• Locate the fuse box (refer to the owner's manual for exact location).
• Remove the cover and inspect the AC fuse for any signs of damage.
• If blown, replace it with a fuse of the same amperage (check the owner's manual for specifications).

3. Inspect and Recharge Refrigerant

• Attach the manifold gauge set to the AC service ports (high and low side).
• Check the refrigerant pressure; it should be within the manufacturer's specified range.
• If low, recover the existing refrigerant (if applicable) and recharge with the correct type and amount of refrigerant (usually R134a for Skoda Octavia).
• Evacuate the system using a vacuum pump for at least 30 minutes before recharging.

4. Verify AC Compressor Functionality

• Reconnect the battery and start the engine.
• Turn on the AC to the maximum setting and observe the compressor.
• If the compressor does not engage, check the electrical connections and relay.
• Replace the AC compressor if it is not functioning after all checks.

5. Inspect AC Components

• Check the blower motor and resistor for proper function.
• Remove the cabin air filter and inspect for blockages.
• Clean or replace the filter if necessary.