Why Temperature Sensors Matter in Your Air Conditioner and How They Work

What are temperature sensors and what do they do?

Temperature sensors are electronic components that measure air or refrigerant temperature inside an AC system. They help control heating and cooling cycles to maintain your desired indoor climate.

Main types of temperature sensors in air conditioners

1. Air temperature sensors

Located inside the indoor unit, they measure room air temperature and signal the compressor to turn on/off to maintain comfort.

2. Liquid/refrigerant sensors (pipe sensors)

These monitor refrigerant temperature inside copper tubes, protecting the system from overheating or freezing.

Signs of a faulty temperature sensor

• AC can't hold set temperature
• Short cycling (frequent start/stop)
• Error codes on the display (e.g. E5, F1, CH05)

When should you replace the sensor?

If diagnostics indicate a faulty sensor, replacing it with an original part is essential for system reliability.

Where to buy AC temperature sensors in Kyiv?

Only-Spares offers air and pipe sensors for brands like LG, Gree, Zanussi, Panasonic, Toshiba. Fast delivery across Kyiv and Ukraine.