F8 (All Drives): Parameters Out of Spec.
Code Meaning: Internal memory used by the drive has lost data.
This code often indicates that at least one parameter has accidentally been programmed in a way such that it is logically incompatible with other parameter settings.
Please contact PE® for assistance.
NOTE: An F8 code is common on many other types of devices (air conditioners, etc.). If you see an F8 code on a device that is not a Power Electronics Intl.® variable frequency drive, this F8 code description does not apply to your item.