Troubleshooting Common HVAC Problems: DIY Fixes and When to Call the Pros

HVAC Problems

It is summer, and Texans are very dependent on their air conditioning. If your HVAC unit goes out in the middle of summer, it can be extremely uncomfortable and even dangerous. It can take days or even weeks to get a repair person to your house. If your HVAC is not working properly, there are a few troubleshooting techniques you can use before calling for HVAC services.

Check for a Blown Fuse

In some cases, your HVAC system might stop working even though there is nothing technically wrong with it. Check your circuit breaker to see if a fuse is blown. If a circuit is tripped, simply reset the circuit and turn the AC back on to make sure that it works. It is also a good idea to make sure there is not a power outage in your building or neighborhood.

Make Sure the HVAC Filter is Clean

The first thing you should do when troubleshooting an HVAC system is to find out if the filter needs replacement. When the filter in an air conditioner is dirty, air will not flow properly. When air cannot flow, the air conditioning system cannot do its job.

The frequency with which you will replace your filter will depend on its quality and type. In most cases, you should replace filters every one to two months.

Make Sure The Thermostat Batteries Are Working

Some problems are easily solved. If your heat or HVAC goes out, there may be a problem with the thermostat. If the thermostat is in the wrong place, it is a problem that a trained HVAC technician can fix. However, your thermostat may simply need new batteries. Try replacing them before calling for repair.

Make Sure The Vents are Clean

If the vents are not clean, the air will not be able to flow properly. Make sure the vents on the inside and the outside of the house are cleaned regularly. In some cases, dust can gather and form a blockage. 

Read the Owners Manual

Your air conditioner owner’s manual can give you specific troubleshooting tips. It will also tell you what kind of filter to use. If you use the wrong filter, it can hurt your HVAC system’s performance.

Look Around the Outside of the Unit

Go outside and make sure that there are no tree branches on or around the outside unit. If you notice leaves or other debris blocking the unit, turn the system off and spray it down with water. 

If you do all these things and your air conditioner still does not turn on, call an HVAC professional. They can tell you if you need a repair or replacement. Getting regular maintenance is critical to the longevity of your air conditioner. Texas air conditioners get more use than those in other parts of the country, so you may want to have maintenance twice a year.