Status
Unit will shut down and attempt to restart once the drive cools. If it trips 3 times in one call, unit will lockout
Description
The compressor drive has detected too much current on an internal component.
Expected Operation
The drive will attempt to fold back if the PFC or Power Factor Correction Module in the drive begins to overheat.
Cause
This overheating could be from a grossly overcharged system or from a failed outdoor fan motor, dirty condenser coil or dirty heat sink on the back of the drive itself. Make sure nobody has tried to separate the heat sink from the drive itself.
Solution
Wait until ambient air temperature has cooled below 90F and confirm if problem persists. If problem persists below 90F, replace inverter drive controller.