why does my Honda Accord 10th Generation (2018-2022) air conditioning blow warm air

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety while working on the A/C system.
• Allow the engine to cool completely before starting repairs.

2. Refrigerant Recharge

1. Connect the manifold gauge set to the A/C service ports (low and high side).
2. Check the refrigerant levels; if low, proceed to recharge.
3. Use an A/C refrigerant can and follow manufacturer instructions to add refrigerant.
   • Monitor the pressure on the gauges to avoid overcharging.
4. Disconnect the manifold gauge set and replace the service port caps securely.

3. A/C Compressor Inspection

1. Locate the A/C compressor and inspect for any visual signs of wear or damage.
2. If the compressor clutch is not engaging, check the electrical connections to ensure they are secure.
3. Test the compressor clutch with a multimeter (should read around 3-5 ohms).
4. If defective, replace the compressor.

4. A/C Relay and Fuse Replacement

1. Locate the A/C relay and fuse in the fuse box (consult the owner’s manual for exact locations).
2. Use a multimeter to check the continuity of the relay.
3. Replace any blown fuses if necessary.
4. If the relay is faulty, swap it with a similar relay to test functionality or replace it.