It's too hot for the air conditioner to cool. What happened?

The weather is too hot, and the air conditioner does not cool, which may be caused by the high outdoor temperature. When the outdoor temperature exceeds 43 degrees Celsius, the compressor of the air conditioner cannot radiate heat normally, so there is no refrigeration. When the outdoor temperature drops, it can be cooled normally. If the outdoor temperature is not so high, but the air conditioner does not cool, it may be caused by insufficient refrigerant in the air conditioner. Adding refrigerant to the air conditioner will solve the problem.