A couple of months ago, the HVAC unit in my home started malfunctioning. The temperature inside my home soared to over eighty degrees Fahrenheit, even though my air conditioning system ran nonstop. After inspecting my air conditioning unit, my knowledgeable HVAC contractor recommended I purchase a new system. He discussed the pros and cons of installing different sizes of HVAC units with me. After considering my HVAC contractor’s advice, I decided to purchase a three and a half ton HVAC unit. Shortly after my HVAC contractor installed my new air conditioning unit, my house started feeling more comfortable. On this blog, I hope you will discover how an HVAC contractor can help you select the right air conditioning unit for your home. Enjoy!
When you flip the switch on your thermostat to turn on your home's AC, it usually starts pumping out cold air immediately. That's why it is a reason for concern when you don't feel that refreshing breeze of cool air right away. Here are some reasons why air conditioning units can suddenly stop working:
Compressor Problems
Start by taking a look at the compressor outside your home. This part of the HVAC system has the job of circulating the refrigerant through the HVAC system so that it can remove the heat from the air. When the compressor is not working, the heat has no way to leave your home.
One reason the compressor could be acting up is due to dirty coils. All of that grime on the coils can cause issues with the compressor being unable to expel heat, which causes this part to overheat. There can also be an electrical issue, lack of lubrication on the moving parts, and not enough refrigerant in the system.
You can identify a compressor problem if it is making new noises that you are unfamiliar with. Think of a loud motor that is lacking lubrication, a hissing sound, or grinding coming from the unit.
Leaking Refrigerant
A lack of refrigerant could be due to a leak somewhere in the refrigerant line. Thankfully, there are some warning signs that you can look out for. You may have ice buildup on the part of the tubing where the refrigerant is leaking out. There may also be an odd odor near the leak as well.
An HVAC technician can come out to your home to identify and fix the problem. Once the tubing is repaired, they can refill the system with more refrigerant to get the AC working once again.
Broken Fan
If you have no air coming out of your air ducts at all, you may have a broken fan. This can happen due to a mechanical issue since it is a moving part. Belts can break, parts can lack lubrication, and even fan blades can break off unexpectedly. You may also have an electrical issue, which is a bit harder to diagnose. The blower unit should still be getting cold if the fan is broken, since the air has no way to leave the air handler. It can even cause the coils to condenser coils freeze, leading to other problems with your air conditioner.
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