How to Troubleshoot the Fujitsu Wall-mounted Air Conditioner

The Fujitsu wall-mounted air conditioner is designed for use in individual rooms or spaces, such as apartments, dormitory rooms, hotel rooms, vacation homes or other small areas.

The air conditioner features automatic heat and cool options, a sleep timer, automatic swing operation, mold-resistant filter, quiet motor and a remote control. The air conditioner is sold online or in select heating and cooling supply stores, as well as through some dealers. If owners have problems with the unit, some troubleshooting can help identify and solve the issue with the air conditioner without professional assistance. .

Connect the Fujitsu air conditioner to a working electrical outlet if it does not operate. Replace or reset the fuse or circuit breaker as necessary. Note that the unit will shut off automatically if stopped and restarted immediately without pausing. This prevents motor overload.

Reduce the use of cigarettes or cooking odorous foods during air conditioner use if the air blown into the area by the unit begins to smell.

Adjust the thermostat to a warmer temperature if the air flow seems weak or too warm. Avoid setting the unit to "Super Quiet" mode, as this will reduce motor speed. Close doors and windows in the area to help keep the cool area inside.

Open the front intake grille and remove the filter if the unit performs poorly. Remove the filter and clean with a vacuum cleaner brush attachment or wash with clean, soapy water. Rinse the filter thoroughly and dry completely before placing the filter back into the air conditioner.

Replace the batteries in the remote control if the unit is not operational when buttons on it are pressed. Make sure the "+" ends of the battery are placed in the "+" marks in the battery compartment and push the batteries in firmly.

Things You Will Need

  • Vacuum cleaner with brush
  • Dishwashing liquid

About the Author

Meredith Jameson writes early childhood parenting and family health articles for various online publications. She holds a Bachelor of Arts in history from San Francisco State University.