How to Diagnose Your AC Unit

» Posted by on Jan 6, 2022 in HVAC | 0 comments

As a homeowner, you don’t want to spend a lot of money on an AC replacement. Unfortunately, it’s your responsibility to make sure your AC unit is up and running properly.  

Before you even think about buying a new air conditioner, you might be able to save your AC unit with a less expensive repair. For those who don’t know, a lot of common AC issues only need a bit of attention and care.  

As a homeowner, you need to know how to troubleshoot some of the most common problems with your AC unit.  

However, there are also cases where it is much better to simply replace your AC unit. For instance, you might have a very old unit. If that’s the case, you’ll need to hire a residential or commercial HVAC installation company for help. 

AC Unit Creating a Lot of Sound 

A properly running AC unit shouldn’t make loud noises while it runs. If it makes a lot of sounds or you hear strange noise, you should inspect the unit carefully.  

  • Shine a flashlight into the unit. Don’t put your hands inside the unit or remove the covers. Check visually for loose debris or components in the unit.  
  • Shut down the AC unit and unplug the power cord. You shouldn’t try to look into your AC unit without verifying that there is no current running to the outdoor and indoor units.  
  • Listen for the noise’s location. Is the outside unit creating the noise? Is it coming from the inside unit? Find the source of the noise while the unit is running.  

Immediately call an expert if you notice loose debris or parts in the unit.  

AC Unit Not Blowing Cool Air 

When your AC is running, you’ve got to guarantee it is releasing cool air. If the unit releases warm air, it means that the unit is not properly operating.  

First, examine the thermostat and ensure it is set to “cool”. Then, turn the thermostat down gradually by several degrees every 5 to 10 minutes. If you still do not feel cold air, you need to hire an HVAC technician right away. Your AC unit might need a refrigerant refill. 

AC Unit Keeps on Running 

If you notice that your AC unit isn’t shutting off, then you’ve got a problem. This is particularly true if it is not cooling your house properly as well. 

  • Examine the air filter. Your AC might have a hard time cooling your house if you have not changed the air filter for several months.  
  • Examine the thermostat batteries. The thermostat can stop sending signals to the AC unit if the batteries are low. Make sure you replace the batteries regularly.  
  • Check the thermostat. There is a possibility that your compressor cannot get the air temperature that low if the setting is too low. However, it will continue to try until you increase the temperature in the thermostat.  

The motor of your AC is at risk if the unit is constantly running. You should hire a professional HVAC technician to fix your AC unit as soon as possible.  

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