5 Essential HVAC Troubleshooting Tips For Homeowners

Your HVAC system is made up of nine main parts: the air return, filter, exhaust outlets, ducts, electrical elements, outdoor unit, compressor, coils and blower. All parts must work together to produce warm or cool air consistently throughout your home. When a component stops working, troubleshooting the HVAC can be challenging.

Although you should leave big heating or cooling repair jobs to a certified HVAC technician, you can identify and solve smaller problems yourself. Below we look at five HVAC troubleshooting tips to help you find and fix common HVAC issues.

If you have any further questions, contact CMC Service Experts. We’re here to help you with HVAC repair in Clayton, North Carolina.

1. Read Your HVAC Owner’s Manual

Every HVAC system comes with a manufacturer’s owner manual. You may get one owner’s manual for your furnace, one for your air conditioner or heat pump, and another for the entire system. What type or manuals you have depends on your HVAC setup. 

Reading your owner’s manual should always be the first step in troubleshooting HVAC issues. Most owner’s manuals come with a complete troubleshooting guide or troubleshooting tips on how to diagnose and fix problems. 

Note: Owner’s manuals are designed to help you find and solve basic problems, not complex problems. If you have attempted all the troubleshooting tips in your owner’s manual, and you can’t find or fix the problem, you should contact a certified HVAC technician in Clayton, North Carolina to perform an HVAC repair.

2. Make Sure Your HVAC System Has Power

When troubleshooting HVAC systems, start with the easiest solutions and slowly work your way to more complex solutions. It allows you to rule out simple problems. For instance, when it comes to HVAC systems, the most basic issue is power. So, check the following:

  • Is the air conditioner plugged in (where applicable)?
  • Is there any loose or disconnected visible wiring?
  • Is the breaker turned on? Is it tripped?
  • Is there a blown fuse?
  • Is the thermostat getting power?

Check all areas where power could be an issue. Try flipping the breaker switch off, waiting a few seconds, and flipping it back on. If the fuse is blown, turn off the breaker and replace the fuse. Then flip the breaker back on. Last, check the thermostat to see if it has power.

3. Check the HVAC Air Filter

Another simple home AC troubleshooting task you can perform yourself is checking the HVAC air filter. A dirty air filter can cause numerous problems, including

  • Heat Exchanger damage
  • High heating and cooling bills
  • Poor indoor air quality
  • Poor temperature control
  • Frozen AC condenser coils (iced over)

If you notice there is little air coming out of the vents, the AC air conditioner coils could be covered in ice. You may notice more dust than usual in your home. Or you can’t get the temperature right no matter how many times you adjust the thermostat. All of these issues are associated with a dirty air filter. 

Fortunately, the solution is simple. Change the filter. Read your HVAC owner manual to find out what type of air filter you need and how often you should change it. 

4. Check Your Thermostat for Issues

Troubleshooting HVAC problems can be aggravating because homeowners often assume the problems are mechanical; meaning, there is a problem with a moving part or mechanical component. However, like any electrical system, sometimes HVAC problems are easy to solve if you know where to look. 

If you have checked the power and the filter the next logical place to diagnose an HVAC problem is your thermostat. Common thermostat problems include

  • The thermostat doesn’t reach the correct temperature.
  • The HVAC system keeps running.
  • The thermostat is placed incorrectly in the home.
  • There is dirt and dust buildup inside the unit.
  • The thermostat is outdated and no longer works properly.

Thermostat issues can be easy to fix, depending on the problem. For example, if your thermostat is not reaching the correct temperature, you may need to recalibrate it. If it doesn’t shut off, you may need to clean it. Also, try changing the batteries. A certified HVAC technician may need to handle more difficult issues such as relocating the thermostat or performing a thermostat replacement or repair.

5. Check All Doors and Vents

The primary purpose of an HVAC system is to circulate warm or cool air throughout each room in your house to create a balanced comfortable environment. Once you set the temperature on your thermostat, the HVAC system continues to circulate air until every room reaches the desired temperature. The HVAC system only accomplishes this if the air is allowed to circulate. 

One of the most common mistakes homeowners make is closing doors or vents in certain rooms to channel all the air in another room. This method can damage an HVAC system because it creates too much pressure on the compressor and blower. It also doesn’t have the desired effect. Closing doors and vents only limits circulations. It doesn’t help you get more air in a specified room. 

When troubleshooting the HVAC system, go through your house and open up all doors and vents. Doing so allows the air to circulate properly through the entire house. It also allows your HVAC system to do its job without working twice as hard.

Schedule HVAC Repair in Clayton, North Carolina

Are you having problems with your furnace, heat pump, air ducts, or air conditioner? If so, contact CMC Service Experts. We offer complete HVAC repair in Clayton, North Carolina. To schedule service, fill out our contact form or call us.

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