While a nice warm summer day may be great when you're outside, it's not so great when you're inside. When you're in your house, you want your home to be cool and comfortable. If your air conditioner isn't working, you aren't going to be cool and comfortable. If you're having problems with your air conditioner, you should call an HVAC repair shop so they can send a technician out to your house to diagnose the problem and fix your AC. You could do some troubleshooting while you are waiting for the repair tech to get to your house. Troubleshooting may help you figure out what the problem is, or at the very least, help you figure out what it is not so that you can tell the tech.

Check Your Thermostat

The first thing you should do is to check your thermostat. You are looking for a few different things here. One of the things you're checking is to make sure that the thermostat is switched to AC. If you have an older thermostat, there may be a physical switch at the bottom of the unit, which has to be slid from furnace to AC. If that switch isn't fully in place, it may not trigger your air conditioner to come on. So, double-checking to make sure it's on only takes a second, and it could get your air conditioning working. You can also try turning your air conditioner down as low as it will go to see if the unit kicks on. It could just be that your thermostat needs to be recalibrated, and changing how low you have it set can get your AC running again. If this doesn't get your air conditioner running again, chances are that your problem is not with the thermostat.

Check Your Power

The next thing you should do is check to make sure the unit is getting power. The best way to do this is to go to your circuit breaker and check to ensure that all the breakers are in the on position. If you know which breaker is for your air conditioner, you can try turning it off and back on again. Sometimes the breaker isn't solidly on, even though it looks like it is. Turning it off and back on again resets everything and ensures the circuit is complete.

No one wants to go through summer with a malfunctioning air conditioner. If your air conditioner does stop working, call an AC repair company so that they can send a technician to your house to get your air conditioner working again.