Status
This is a critical alarm, the unit will not operate. will resume operation automatically if fault self corrects corrected.
Description
the PFC (Power Factor Controller) on the drive board is not functioning correctly. This fault comes directly from the drive itself.
Expected Operation
No operation.
Cause
It is possible that this is a temporary condition caused by external factors (such as the input voltage or the outdoor air temperature). If the problem goes away and does not appear again, do not attempt repair. If problem is consistent and persistent, it may be a sign that the compressor drive has failed and may need to be replaced.
Solution