Does a refrigerator compressor need settling time after being laid on its back or side?
As a certified HVAC person I can tell you it might work after standing back up and plugging in but depending on the system the oil drains from the compressor. On many units it takes time to make its way back to the compressor (if it can at all). I have seen brand new window AC units that were shipped on their side and turned on after several hours that blew the breaker. The oil went into the coils, and because of the design, the oil was trapped enough so when the unit was plugged in it destroyed the compressor.