How to Clean Fujitsu AC Indoor Unit: A Comprehensive Guide

Cleaning a Fujitsu AC indoor unit is a crucial task to maintain its efficiency and extend its lifespan. This comprehensive guide will walk you through the step-by-step process of disassembling, cleaning, and reassembling your Fujitsu AC indoor unit, ensuring optimal performance and air quality.

Disassembling the Fujitsu AC Indoor Unit

  1. Locate the Access Panels: Identify the screws or clips that secure the access panels of your Fujitsu AC indoor unit. These panels will typically be located on the front or sides of the unit.
  2. Remove the Access Panels: Using a screwdriver or appropriate tool, carefully remove the access panels to expose the internal components of the unit.
  3. Identify the Fan Blades and Coils: Locate the fan blades and the indoor coils within the unit. These are the primary components that require cleaning.

Cleaning the Fan Blades

how to clean Fujitsu ac indoor unitImage source: Fujitsu AC by Raysonho

  1. Inspect the Fan Blades: Closely examine the fan blades for any visible dirt, dust, or debris accumulation.
  2. Prepare the Cleaning Solution: If the fan blades are heavily soiled or have mold/mildew present, prepare a cleaning solution of hot water and white vinegar. For lighter cleaning, a damp cloth or soft-bristled brush may suffice.
  3. Clean the Fan Blades: Gently wipe or brush the fan blades, ensuring to remove all dirt, dust, and debris. If using the vinegar solution, apply it to the blades and let it sit for a few minutes before rinsing with clean water.
  4. Dry the Fan Blades: Thoroughly dry the fan blades using a clean, dry cloth or allow them to air dry completely before reassembling the unit.

Cleaning the Indoor Coils

  1. Inspect the Indoor Coils: Examine the indoor coils for any visible dirt, dust, or debris buildup.
  2. Select a Foaming Spray Cleaner: Choose a foaming spray cleaner specifically designed for cleaning AC coils. These cleaners are formulated to effectively dissolve and remove contaminants.
  3. Apply the Cleaner: Spray the foaming cleaner directly onto the indoor coils, ensuring even coverage.
  4. Allow the Cleaner to Sit: Let the foaming cleaner sit on the coils for the recommended duration, typically 5-10 minutes, to allow it to work on the accumulated dirt and debris.
  5. Rinse the Coils: Using a pump or plastic collecting bags, rinse the coils thoroughly with clean water to remove any remaining cleaner and debris.
  6. Dry the Coils: Allow the coils to air dry completely before reassembling the unit.

Reassembling the Fujitsu AC Indoor Unit

  1. Inspect the Unit: Carefully inspect the unit to ensure that all components are clean and dry.
  2. Reinstall the Access Panels: Carefully replace the access panels, ensuring that all screws or clips are securely fastened.
  3. Verify the Reassembly: Double-check that the unit is properly reassembled and all components are in their correct positions.

Additional Considerations

  • Cleaning Frequency: It is recommended to clean your Fujitsu AC indoor unit at least once a year, or more frequently if the unit is heavily used or located in a particularly dusty environment.
  • Professional Cleaning: If the unit has a significant buildup of dirt, dust, or mold, it may be necessary to hire a professional HVAC technician to thoroughly clean and maintain the unit.
  • Preventive Maintenance: Regular maintenance, such as changing air filters and keeping the unit’s exterior clean, can help reduce the frequency of deep cleaning required.

By following this comprehensive guide, you can effectively clean your Fujitsu AC indoor unit and ensure its optimal performance and air quality. Remember to always prioritize safety and consult the manufacturer’s instructions if you have any doubts or concerns during the cleaning process.