Model Y is still different from traditional new energy vehicles. The air conditioning system of traditional new energy vehicles is separated from cooling and heating. Compressors are used for refrigeration and PTC is used for heating. Therefore, between the systems The interference will be less and the structure is relatively simple. However, in order to improve the endurance performance in cold weather, the Tesla model Y adopts the heat pump air conditioner system, and also uses the compressor when heating, so the pipeline is more complicated. , The refrigerant circulation pipeline needs to have solenoid valve switching, and the heat pump system introduces the working waste heat of the battery and the motor, and also has a separate multi-way valve control. Therefore, the noise in operation may be larger than that of a single-cooling compressor.
In addition, under heating conditions, the PTC heating system works without noise, while the heat pump system heating requires the compressor to work, so there will be mechanical noise like refrigeration, which is normal Noise at work does not require special attention.
However, the failure of the air-conditioning system will also cause additional noise. Currently, Tesla has an OTA upgrade and improvement plan for the air-conditioning system. If you think there is a problem, you can try to upgrade first. If you can’t solve it, you can start from the internal system. And the external two aspects to judge the fault.
In the internal system, there are only two movable parts. If the air conditioner is turned on and emits a continuous abnormal noise, and the abnormal noise changes with the wind speed, check the air conditioner blower. The price of the blower accessories is less than 1000. If the abnormal noise changes with the wind mode, then it is the failure of the damper control motor. The cost of the damper motor is lower. Generally, you can buy it for about two to three hundred.
External system, the main moving parts are compressors and fans, which can be preliminarily judged by the operating frequency. In most cases, it is caused by compressor failure. Because the air conditioning system is relatively closed, it is more difficult to solve the fault by yourself. Just go to the service station for repairs.
.
