Air conditioners are a wonderful part of modern living. They allow you to keep your home perfectly comfortable for yourself and your loved ones. Unfortunately, like other appliances, air conditioners can sometimes break. Here are three signs that it's time to call AC repair services.

1. Your air conditioner isn't maintaining a consistent temperature.

If you fall asleep with your air conditioner on, it should keep your bedroom at a steady temperature. If you're falling asleep in a cool room only to wake up sweating in the middle of the night, that could mean that your air conditioner's internal thermostat is malfunctioning. If that's the case, you should call your local AC repair service to come take a look at your unit.

2. Your air conditioner turns off during usage.

This is one of the more noticeable signs that your air conditioner is malfunctioning. If your air conditioner spontaneously turns off and you still have electricity in your home, the first thing you should do is check your fuse box. Air conditioners draw a lot of power, and if you were running more small appliances than usual, it's possible that you could have blown a fuse. According to SF Gate, if you have a central air unit, the switch might be labeled "furnace" on your circuit breaker since they use the same circuit. If all of your fuses are intact, it could be an electrical problem with the air conditioner itself, and you should call a professional. It's very dangerous to meddle with live electrical equipment, so you shouldn't try to fix it yourself.

3. Your air conditioner is blowing warm air.

Air conditioners use refrigerants and fans to fill your house with cool air while removing hot air. However, if your air conditioner is broken, this might not be the case. If your air conditioner is blowing warm air into your house, you know that the fan is still working. This means that there's likely a problem with your air conditioner's condenser and coolant systems. It might be running low on refrigerant, or there could be an undiscovered leak within the unit.

These are just a few signs that your air conditioner might be broken. When in doubt, don't hesitate to call an air conditioning repair service for a second opinion. Most common AC problems can be fixed on the same day, so you won't have to deal with the heat without your AC.