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Common Thermostat Issues that Impact your HVAC Efficiency

What is a thermostat?

The thermostat is your HVAC system’s control center as it is the mechanism that turns it on and off. When you control your heating system with a thermostat, it affords you the opportunity to use energy efficiently, and also to maintain healthy temperature accuracy in your home. In this article, you will learn some of the issues that can have an effect on the efficiency of your HVAC system.


Issue #1: Improper placement of thermostat

Image via Flickr by  czarcats

In order for thermostats to function effectively, they must be set up in a central position that is far from locations where the temperature fluctuates. When the thermostat is incorrectly placed, it can give incorrect readings of low temperatures, thereby making your heater run constantly.

Positions that can make the thermostat give the wrong readings are in direct sunlight and near outside doors. Professionals can help to relocate the thermostat from these positions, which will help make your HVAC system maintain a uniform temperature throughout your home.


Issue #2: Having an old thermostat in place

Having an old thermostat in place can greatly impact the efficiency of your HVAC system. Older thermostats tend to give more incorrect temperature readings as the thermostat reaches the end of its life. The wrong readings will issue the wrong commands to your HVAC system which cause problems like high energy bills and short cycling.


Issue #3: When thermostats have power problems

Your HVAC system can stop working when your thermostat loses power. You should check to find out the cause of the power loss, as these can be the result of drained batteries, a circuit breaker, or a blown fuse.

Some cases of thermostat power loss can also be caused by wiring issues like loose connections, disconnections, and old wiring reaching the end of its lifespan. Consulting an HVAC professional can help determine the root cause and keep you and your family safe.


Issue #4: Setting the wrong temperature on a thermostat

It is important to set the right temperature on a thermostat in order for your HVAC to work correctly. While the right temperature for a home depends on personal preference, a minimum winter temperature of 18 degrees Celsius (that’s 64.4 degrees Fahrenheit) is generally recommended. You should assess the different features of a thermostat before purchase to find out the one that is right for you.


Issue #5: When thermostat is dirty

In the flextime of a thermostat, dust can gather on its inside. When dust and debris build up in a thermostat, it causes the contacts inside to give incorrect temperature readings. Common problems associated with the accumulation of dust in a thermostat can be fixed by removing the cover and using a soft brush to scrub away the dirt.


When handled properly, a thermostat can have significant positive effect on your HVAC system.  It can bring out the best in your home, and can help ensure maximum comfort in your home no matter the season or the weather.