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Your AC Unit vs. Your Thermostat

Your thermostat is essential for keeping you comfortable indoors, protecting you, your family, and even your pets from dangerous levels of cold or hot weather, not to mention Florida’s sometimes unbearable humidity. However, many people are unsure how the thermostat and the AC unit actually work together, and how they differ. Here are details, functions, and possible issues you might run in to with your thermostat and your HVAC (heating, ventilation and air conditioning) system.


The thermostat is a piece of equipment, such as a dial or keypad placed on a wall inside your home, usually located in a hallway or another area that doesn’t get direct sunlight. The thermostat displays the current indoor temperature and uses this information to turn your HVAC system on and off. Its goal is to control the system so that when you want a specific temperature inside your home, the system provides a suitable amount of warm or cool air to provide this temperature setting.

Thermostats automatically read changes in temperature. When you want a fixed temperature, the thermostat will control the HVAC system in an attempt to keep the same degree throughout thday until you change the setting.

HVAC System

The HVAC unit, meanwhile, is a much larger appliance. A mixture of complex parts and chemicals, it generates cool or warm air, then distributes it through your home. If you have central air conditioning, an air conditioner will direct air through your air ducts, which then feed into every room of your house. There are many types of air conditioning units, including split HVAC systems, which are placed both indoors and outdoors, or packaged systems, which perform all cooling and heating functions inside of a single unit located outside of your home.

Where Problems Might Start

When you have problems with warming or cooling your homes, such as vents that blow warm air in the summer or cool air in the winter, or unresponsiveness to the temperature changes you input on your thermostat, it can be difficult to determine if you need thermostat repair or air conditioning repair. Problems with either system can result in the wrong temperature inside your home. Thankfully, you can hire an air conditioning service to inspect both parts of your cooling system. The problem you have might be a simple fix such as a bad battery inside your thermostat or clogged air filter. Other issues might be more serious such as clogged coils or a bad compressor.

Contact Us

The licensed and certified HVAC technicians at Climatech of Professional Air can diagnose and repair your system no matter the make or model. Feel free to give us a call or email us at [email protected]. Climatech of Professional Air is a family owned and family operated heating and air conditioning contractor located in Pensacola, FL. We have served the HAVC needs of Pensacola and the surrounding area for more than 40 years.