The outdoor unit of the neighbor's air conditioner is too noisy. How to solve it?

I think there should be, but you can't install sound insulation equipment for yourself because of your neighbors' problems. You'd better take the initiative to contact your neighbor and let him negotiate with the air conditioner manufacturer. If it is really not possible, you have to ask the residential property or the neighborhood Committee for help. In the end, I still can't, I can only call the police ~

I wish you can solve it as soon as possible