why does my Honda CR-V AC only blow hot air

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to ensure safety during repairs.

2. Check and Recharge Refrigerant

• Tools Required: Manifold gauge set, refrigerant canister, safety goggles, gloves.
• Attach the manifold gauges to the AC service ports (high and low).
• Check the pressure readings; if low, proceed to recharge.
• With the engine running and AC on maximum, slowly add refrigerant until the correct pressure is achieved.
• Disconnect the manifold gauges and ensure the system is sealed.

3. Inspect and Replace the Cabin Air Filter

• Tools Required: Screwdriver, replacement cabin air filter.
• Locate the cabin air filter access point, usually behind the glove box.
• Remove any screws or clips and gently pull out the glove box.
• Take out the old cabin air filter and inspect it for dirt and clogs.
• Insert the new cabin air filter, ensuring it is oriented correctly.
• Reassemble the glove box and secure all fasteners.

4. Test and Repair the AC Compressor

• Tools Required: Multimeter, AC compressor clutch shims (if needed).
• Start the engine and turn on the AC.
• Use a multimeter to check for voltage at the AC compressor connector.
• If no voltage is present, trace back to the fuse and relay.
• If voltage is present but the compressor does not engage, inspect the clutch for wear or damage.
• If necessary, replace the compressor clutch or the entire compressor.