Causes and Solutions for Error Code “F3” on Daikin Air Conditioners

Causes of “F3”

• This error code is displayed when the outdoor unit’s compressor stops due to excessively high discharge pipe temperature.

How to Fix “F3”

• For cooling mode
  • Check for any obstacles in front of the outdoor unit, such as cars or objects
    • If there are obstacles, remove them.
• For heating mode
  • Clean the filter
    • If the unit has an automatic filter cleaning function, perform the filter cleaning operation.

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