If we have a rotary compressor and we don’t know it’s bad or not. we should check his short that this compressor is short or not.
Multimeter set on buzzer and one wire of multimeter attach with compressor body and second wire of multimeter attach with compressor terminal one by one if the sound comes from the multimeter then this compressor is short Circuit.
After check short Circuit we should run Compressor and and check his Ampere that its Ampere normal or high if its Ampere is high then compressor is dead.
1 ton ac Compressor Ampere in gas running (round about 5-6)