why does my Honda Accord AC blow warm air when idling

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to prevent electrical shock.

2. Inspect and Repair Refrigerant Leaks

• Tools Required: Refrigerant leak detection kit, manifold gauge set.
• Locate any refrigerant leaks using the detection kit; repair or replace damaged components (hoses, seals).
• Refill the AC system with the appropriate refrigerant according to manufacturer specifications.

3. Test and Replace AC Compressor

• Tools Required: Wrench set, AC compressor removal tool.
• Check the AC compressor for signs of wear or failure. If it's not engaging, disconnect electrical connectors and test with a multimeter for continuity.
• If faulty, remove the AC compressor using the removal tool, and install a new or rebuilt compressor.
• Reconnect all electrical connections and hoses.

4. Inspect Electrical Components

• Tools Required: Multimeter, fuse tester.
• Check fuses and relays related to the AC system. Replace any blown fuses or faulty relays.
• Ensure the AC control module is functioning correctly by testing with a multimeter.

5. Check Engine Cooling System

• Tools Required: Coolant pressure tester.
• Inspect the engine cooling fan; if it is not working, test the fan motor and replace it if necessary.
• Ensure the coolant level is adequate and there are no leaks in the cooling system.