Air conditioners are used to provide good indoor air quality in homes and other buildings. The thermostat sensors are in charge of sensing the temperature of the air entering the evaporator coil. When it comes to maintaining the ideal temperature in a room, these are essential elements.

If your thermostat is reading a temperature that isn’t reflective of the actual room temperature, you should check if the airflow sensor needs to be replaced or repaired. The airflow sensor can also have issues if there’s a build-up in dust compressing the thermistor and not allowing it to detect a temperature change when turning on/off. If you notice a clicking sound when trying to operate your unit, a possible cause could be debris affecting the sensor’s functionality.

We’ve included some of the indicators that your air conditioner has sensor issues in this post, and the common causes of the problem:

#1 Broken Thermostat

When the thermostat is malfunctioning, the sensor will normally cycle on and off occasionally during the normal activation intervals. If your house is excessively hot or cold, the thermostat will start turning itself off before the desired temperature for the room is reached. In this instance, you should contact an air conditioning repair service right once to avoid more damage and costly repairs. A broken thermostat can be recognized through a loud clicking sound coming from your unit’s mainboard, and it becomes extremely difficult to turn on/off the AC.  

#2 Displaced Airflow Sensor

 A sensor measures the air temperature as it passes through the coil. A displaced one will have difficulty doing so, causing the unit to work at irregular intervals. It usually happens when debris gets compressed on top of a vent to obstruct airflow, thus preventing the sensor from reading room temperature accurately.

If this is happening in your unit, check to see if there’s any compression on either side of your airflow sensor or any kind of debris that could have been dragged into one of the vents. If so, carefully remove them and then use a small brush to sweep away anything else that might have been displaced near the sensor. 

Airflow Sensor Troubleshooting

  • Turn off the electricity to your air conditioner and the main electrical panel.
  • Inside, you’ll find the evaporator coil. The sensor will be near the coil. Check for debris or if the sensor has been bent. You can carefully bend the sensor back into position. Then, at the main panel, re-energize the breaker and turn on your system.
  • If the sensor appears to be bent away from the coil, it´s better to have it checked by air conditioning service providers.

Need Airflow Sensor Installation In Greensboro, NC?

If you’re still unclear about what to do, don’t worry; our team of experts is here to help. 

We’ll assess your system and provide you with an accurate estimate. Our technicians are specially trained and equipped to assist with any type of AC repair and airflow sensor maintenance. They’ll work with you every step of the way and make sure that your unit is up and running as soon as possible to give you peace of mind and to prevent extensive damage from happening to other components in your home.

Kay Heating & Air Conditioning can handle all your HVAC maintenance needs, including air conditioning installation and airflow sensor repair. We provide a wide range of services to ensure that the indoor temperature of your Greensboro home or building is pleasant, comfortable, and safe.