why does my Honda Accord have a musty smell when AC is on

Solution

1. Preparation

• Tools Required: Screwdriver set, flashlight, vacuum with HEPA filter, cleaning solution (mold cleaner), gloves, face mask.
• Safety Warnings: Ensure the vehicle is turned off and parked on a level surface before starting work.

2. Cabin Air Filter Replacement

• Sub-steps:
  1. Locate the cabin air filter access panel, typically behind the glove compartment.
  2. Remove the screws or clips securing the glove compartment if necessary.
  3. Open the access panel and carefully extract the old cabin air filter.
  4. Clean any debris or dust from the filter compartment.
  5. Install a new high-efficiency cabin air filter, ensuring it is oriented correctly.
  6. Reassemble the glove compartment and secure it.

3. Clean the AC Evaporator

• Sub-steps:
  1. Remove the dashboard panel if necessary to access the AC evaporator.
  2. Spray an appropriate mold cleaner into the evaporator case.
  3. Allow the cleaner to sit for the recommended time as per the product instructions.
  4. Use a vacuum to remove any excess cleaner and debris from the area.

4. Clear the AC Drain Tube

• Sub-steps:
  1. Locate the AC drain tube, typically found under the vehicle near the firewall.
  2. Inspect the tube for clogs; use compressed air to clear any blockages.
  3. Ensure the drain tube is properly connected and not damaged.

5. Final Assembly

• Sub-steps:
  1. Reattach any panels removed during the process.
  2. Double-check that all screws and clips are secured.
  3. Start the engine and turn on the AC to verify proper function and airflow.