Updated: Sep 22, 2025
Summer is not the time to have a faulty air conditioning system. If you are questioning whether
or not your AC unit is working properly, you might want to try the following:
1) Air Filter
Take a look at your air filter. Make sure it is clean. If not, you will either need to clean it or change the filter. Follow the instructions from your unit’s manufacturer.
2) Breakers
Your breakers may have tripped and caused the unit to stop working. If so, in most cases, you can simply flip it back on.
3) Thermostat
The batteries of your thermostat might need to be replaced. Check your thermostat for a blinking battery light or symbol.
4) Fan
Look over the exterior of your unit. Is your fan operating properly? Look over your unit’s exterior for an evident damages or other issues.
(Source: https://www.angieslist.com/articles/how-can-i-tell-if-my-ac-working-properly.htm)
