Why is it so hard for the temperature to drop after starting the air conditioner today?

First, use the external circulation to expel the hot air from the car, then turn on the air conditioner.

The air conditioner is blocked and won't cool down.

Whether the air conditioning compressor is turned on, after turning it on, it usually takes a few minutes to cool down. Otherwise, there might be an issue with the compressor, or it could be low on refrigerant.

First, turn on the AC, set the temperature to the lowest, set the fan speed to maximum, and adjust the airflow direction to face you. Then, activate the internal circulation. The temperature should drop quickly. If it doesn't, it might be due to low refrigerant or a faulty compressor.