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Where is the AC temperature sensor located?

The air conditioning (AC) temperature sensor is typically located inside the AC unit, near the evaporator coil. This sensor plays a crucial role in monitoring and regulating the temperature of the air being circulated through the AC system.


Understanding the Role of the AC Temperature Sensor


The AC temperature sensor is a crucial component of the AC system, responsible for measuring the temperature of the air being cooled and circulated throughout the home or building. This information is then used by the AC's control system to adjust the compressor, fan, and other components to maintain the desired temperature set by the user.


The sensor is usually positioned in a strategic location, such as near the evaporator coil, to accurately measure the temperature of the air being cooled. This allows the AC system to make the necessary adjustments to ensure the desired temperature is achieved and maintained.


Common Locations of the AC Temperature Sensor


The AC temperature sensor is typically located in one of the following areas within the AC unit:



  • Near the Evaporator Coil: The most common location for the temperature sensor is near the evaporator coil, as this is where the air is being cooled before being circulated through the ductwork.

  • Inside the Blower Compartment: Some AC units may have the temperature sensor positioned inside the blower compartment, where the cooled air is being drawn in before being pushed through the ductwork.

  • On the Refrigerant Line: In some cases, the temperature sensor may be located on the refrigerant line, which carries the cooled refrigerant from the compressor to the evaporator coil.


The exact location of the AC temperature sensor can vary depending on the make and model of the AC unit, as well as the specific design and layout of the system.


Importance of the AC Temperature Sensor


The AC temperature sensor is a critical component of the AC system, as it plays a vital role in maintaining the desired temperature and ensuring the system operates efficiently. If the sensor is not functioning correctly or is located in an improper position, it can lead to issues such as uneven cooling, temperature fluctuations, and decreased energy efficiency.


Regular maintenance and inspection of the AC temperature sensor, as well as the overall AC system, are essential to ensure the system is operating at its best and providing optimal comfort and energy savings for the homeowner or building occupants.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.