Your air conditioning system has a lot of components which work together to cool your home. Here is some information about the limit switches in your AC to help you better understand its operation, and to let you know when you need to call a Gresham AC technician.
What are Limit Switches?
Limit switches are used in a variety of devices for both commercial and residential applications. Limit switches are created with two main purposes in mind. They control electrical circuits by either activating or deactivating them, starting or stop specific electric pulses. One of the easiest examples to understand is the light which automatically turns on when the fridge door is opened, and which shuts off again once the door is closed. Most of the time limit switches are kept out of site, and in fact we often don’t even know when they are in use.
How Do Limit Switches Work in Air Conditioning Systems?
AC limit switches are quite common. The main example is the link between the air handler blower and the thermostat. When the thermostat reaches the preset indoor temperature an AC limit switch is flipped. This stops the air conditioning system from creating any more cold air. An additional AC limit switch turns off the air handling unit simultaneously so that warmer air that has not been cooled does not continue to blow through the vents. When the temperature read by the thermostat rises once again, both air conditioning limit switches are flipped back on, creating cold air and blowing it through the vents for distribution.
When a limit switch goes bad it will cause an AC to short cycle, turning the air conditioning system off too quickly, or not turning the AC off at all. It could be that the AC limit switch is stuck or that its wiring has short-circuited. Whatever the case may be, it is important to contact a trained AC company in Gresham such as The Clean Air Act, Inc. for repairs. Call us today if you need AC service in the Gresham area!