In an ideal situation, the air conditioner should not be tilted. However, if the compressor has been tilted, it should not be used for at least 24 hours.
If used before, there won’t be any short-term adverse effects. However, the lifespan of the air conditioner may be reduced.
If the air conditioner has blown a fuse, tripped a circuit, or has undergone any repair that requires turning off the entire electric supply, the unit should sit for at least 15-30 minutes before using.