100% duty cycle and has own cooling fans and overload pRotection I don’t worry about it.I believe it's the compressor itself under use, when it experiences its peak reliability testing temps. Being under hood it's going to be more saturated with heat and start its work at a more elevated temperature, potentially causing even higher temps in use. I mounted my own compressor outside the engine bay for these reasons.
I would be sure to keep the hood open when using the compressor to help with cooling airflow. Fortunately, it is rated at 100% continuous duty cycle - provided it has adequate airflow.
lots installedand relatively expensive leads to lots of complaints when they break so likely over reported, but I bet the real failure rate is probably industry standard.