When you set your thermostat to a specific temperature in your home, you may take for granted what goes into keeping it there. Your heating system has a lot of intricate components that work together to heat and cool your home– one of these is the limit switch.
What Is It?
A limit switch is anything that inhibits an electric appliance from performing under specific circumstances. For example, the light that turns on and off in your fridge is a limit switch: the light is prevented from turning on when the door is shut. Another example is your dryer: it won’t operate when the door is opened, a function of its limit switch. Limit switches have three main purposes: to save energy, to keep you safe, and to prevent breakdowns– and the need for costly heating system repairs.
Limit Switches and Furnaces
The limit switch has a sensor in the heat exchanger that determines when the air in your home is warm enough to circulate. Once the air reaches your preset temperature, the limit switch turns on the furnace’s blower– it also turns the blower off when the air temperature drops under a lower limit. For safety, the limit switch turns the burner off when air in the system goes above a maximum temperature. If you notice the furnace turning off too soon– or not soon enough– the limit switch may be broken and in need of furnace repairs.
If you need someone to evaluate your limit switch’s performance or if you have questions about heating system repairs in general, contact Precision Air and Heating. In addition to our expert Phoenix heating repairs, we also offer great deals on comprehensive furnace maintenance and tune-ups that will keep your system running smoothly year-round. For more information on our furnace repairs, replacements, and maintenance plans, call 602-fix-my-ac today, or schedule an appointment online with a Phoenix heating repair specialist.
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Precision Air & Heating is truly a reputable company and certainly number one for service in my book. Shawn, the repair manager was extremely helpful and professional. I would recommend them for both installation of a new system as well as repairs on your existing AC.
We were visiting our Arizona home from New York, when on one of the hottest days in August the air conditioning was not working. We called Precision & James Shelton worked to get the air up & running in no time. He was courteous & sympathetic, working hard to repair our central air…we have a warranty & Precision stands behind their work, they are available 24/7… Thank you!
Service was completed in a timely manner and my technician was extremely knowledgeable. All services were explained to me prior to being completed as far as the need and cost are concerned. My air conditioning unit has been problem-free all year and I believe it’s because of the professional maintenance that I get yearly from Precision Air.