We rely on our HVAC systems a lot to keep us and our homes comfortable. Whether you need warming up in the summer or cooling down in the winter, it can be a real annoyance if something goes wrong with your HVAC system. To help prepare you for the kinds of repair and maintenance your HVAC might need, here are some of the most common problems homeowners face with their heating and cooling systems.

Blower running continuously

Normally, the blower activates when the room or house needs heating, based on the temperature your thermostat is set to. If there is a problem with your furnace, the blower might run continuously, resulting in your home being warmer than you want it and your energy bill potentially being much higher.

The solution to this might be as simple as flicking a switch as it’s possible you’ve accidentally switched your fan on. If not, then it is likely to be a problem with the fan relay system, which can become stuck. If the fan setting is not switched on, then call the professionals to have this problem diagnosed.

Unusual noises

Often, one of the first signs of a problem with your furnace is loud or unusual noises coming from it. Rattling, whining, and banging noises can all indicate potentially serious problems. If you notice anything like this, you should call an HVAC repair professional to determine what might be causing the noises. It may be a gas-related problem, which can be dangerous to attempt to fix yourself.

Blowing warm/cold air

You might occasionally find your air conditioner blowing warm air or your furnace blowing cold air. Either way, it’s not what you want them to be doing. This could either be a problem with your HVAC system or with the thermostat. If the thermostat starts to malfunction, then it could be sending the wrong signals to your system, causing it to heat when it should be cooling, or vice versa. It may also be caused by a lack of refrigerant or a problem with your compressor or evaporator coils.


If your system is leaking refrigerant, then the above problem may be caused since the refrigerant keeps the compressor running properly without overheating. Water leaks can also cause problems with your HVAC system, which may be caused by clogged drain lines. Your system needs to drain the water created through condensation, and it can cause problems if it is not able to do this properly. If you call an HVAC repair technician, they will be able to find the source of the leak and resolve the problem for you.

If you suspect a problem with your heating and cooling system or it starts to malfunction, then it is always a good idea to call the professionals to diagnose the issue and repair it safely and efficiently. Call AC Express if you need AC repair around Winston Salem, Clemmons, Lewisville, Advance, and any surrounding communities in the Piedmont Triad.

Leave a Reply

Your email address will not be published.