Excuse me, is the noise of the outdoor unit of the air conditioner big in summer or winter?

It is noisy in winter, because there will be condensed water in the outdoor heat exchanger during heating operation in winter, which increases the outdoor air intake resistance, so the noise is even louder. If the noise of the outdoor unit is really big enough to affect the rest, please ask the after-sales staff to solve it. Usually, the bottom corner of the compressor is fixed too tightly, which causes the plastic gasket to lose its original damping effect, so it is noisy. This is mainly because the manufacturer is afraid of damaging the compressor during transportation, so it is fixed tightly, so that the after-sales personnel can relax and reduce some noise.