The weather is cool and the air conditioner is cool.

This may be due to the following reasons:

1. Insufficient or leaking air conditioner refrigerant. If the refrigerant is insufficient or leaks, the air conditioner will not work normally, resulting in no refrigeration.

2. Air conditioning compressor failure. Air-conditioning compressor is the core component of air-conditioning refrigeration system. If it fails, it will lead to air-conditioning refrigeration failure.

3. The air conditioner condenser is blocked. Air-conditioning condenser is an important part of air-conditioning refrigeration system. If it is blocked, the air conditioner will not work normally.

4. Air conditioning fan failure. Air conditioning fan is an important part of air conditioning refrigeration system. If it fails, the air conditioner will not work normally.

If the air conditioner can still cool normally in cold weather, it may be because the temperature drops and the working pressure of the air conditioning refrigeration system drops that the air conditioner can work normally. It is suggested to contact professional automobile maintenance personnel for maintenance in time when there is a problem.