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      What is a U5 fault?

      Fault U5 is a Transmission error between indoor unit and remote controller.

      Fault is a Transmission error between indoor unit and remote controller.

      For more information open the Daikin Service App on your mobile.

       

      1. Ensure you are logged into the Daikin Service App.  You will see Engineer as below.

       
      2. Click on the related product group.

       
      3. Click on the Fault code icon at the bottom on the page.

       
      4. Enter the fault code in the search field to show related information on the page

       

       

      If your unable to find the solution please contact Daikin Tech support

      Email: techsupport@daikin.co.nz

      Phone: 0800 20 91 10 option 1