F5 error code - Fan speed has been out of control

Modified on Thu, 03 Nov 2022 at 09:46 AM

An F5 error code indicates that the fan on the outdoor or indoor unit has been running at a very low speed for a set period of time. This occurs when either the controller on the board or the fan malfunctions.


You can review the attached PDF in order to diagnose and pinpoint the root cause of the problem.

E3/F5 Error Code PDF

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