my Honda CR-V has a funky smell coming from the vents when I use AC

Solution

1. Preparation

• Gather tools: screwdriver set, vacuum, cleaning cloths, HVAC cleaner, and gloves.
• Ensure the vehicle is parked on a level surface with the engine off.
• Disconnect the battery to avoid any electrical issues while working.

2. Replace Cabin Air Filter

• Sub-steps:
  1. Locate the cabin air filter access panel, usually found behind the glove compartment.
  2. Remove the screws or clips securing the panel and gently pull it away.
  3. Remove the old cabin air filter and inspect the area for debris and mold.
  4. Install a new cabin air filter, ensuring it is oriented correctly as per the airflow direction.
  5. Reattach the access panel securely.

3. Clean the AC Evaporator

• Sub-steps:
  1. Access the evaporator by removing the dash panel if necessary.
  2. Use a vacuum to remove any dust or debris around the evaporator.
  3. Apply an HVAC cleaner to the evaporator surface, following the manufacturer's instructions.
  4. Allow the cleaner to sit for the recommended time before rinsing or wiping down.
  5. Reassemble any components removed during access.

4. Clear the AC Drain Tube

• Sub-steps:
  1. Locate the AC drain tube, typically found under the vehicle near the firewall.
  2. Inspect for any blockages; use a flexible brush or compressed air to clear any debris.
  3. Ensure the drain is flowing freely by pouring a small amount of water into the tube.
  4. Recheck for leaks and secure any loose connections.