Common HVAC Issues

Troubleshooting common HVAC problems is something that all homeowners should know. It plays a critical role in helping you to know how to fix HVAC problems. However, you must be aware of the common HVAC issues before accomplishing this important objective. Here are some of the common HVAC issues you should know.

1. Thermostat Problems

A malfunctioning thermostat is one of the most common HVAC issues. This problem can cause your heating and cooling system to operate inefficiently. In some cases, it can also cause your energy bills to increase. If you think that your thermostat is not working properly, you should have it checked by a professional. Your heating and cooling unit will not operate properly if the thermostat is not functioning correctly.

2. Dirty Air Filters

Another common HVAC issue is dirty air filters. When the air filters are clogged, it can restrict the airflow to your heating and cooling system, leading to higher energy bills. Air filters should be changed regularly to prevent this problem. You don’t want your air filters to be so dirty that they cause your HVAC system to break down.

3. Refrigerant Leaks

Your air conditioner depends on refrigerant to cool the air. If there is a leak in the system, it can cause your air conditioner to lose its cooling power. Sometimes, it can also cause your air conditioner to freeze. If you think there is a refrigerant leak, you should have it checked by a professional. Refrigerant leaks can be fixed, but it’s best to avoid them if possible.

4. HVAC Is Blowing Hot or Warm Air

Your heating unit should blow hot air, and your cooling unit should blow cool air. If your HVAC system is blowing warm or hot air, it could be a sign of a problem. It could be a simple issue like dirty filters. However, in other cases, it could be a more serious problem. If your HVAC system is blowing hot or warm air, you should have it checked by a professional.

5. HVAC Is Making Strange Noises

Your unit needs to operate quietly. It could be a sign of a problem if it starts making strange noises. The most common cause of strange noises is loose parts. If you hear strange noises, you should have your HVAC system checked by a professional. Tightening some of the parts may fix the problem.

6. HVAC Won’t Turn On

In extreme situations, your HVAC system may stop working altogether. If this happens, it’s important to take action immediately. First, check the thermostat to see if it’s set properly. If the thermostat is set correctly and the system still won’t turn on, there could be a problem with the electrical supply. You should also check the fuse box to see if a fuse has blown. You should call an electrician if the problem is with the electrical supply.


Your HVAC unit is a complex piece of machinery. Many things can go wrong with it. However, by being aware of the common HVAC issues, you can take steps to prevent them. You should also know how to troubleshoot problems to fix them quickly. Contact Masing Construction Inc. if you need help with your HVAC system. Our team of experts will be happy to assist you.