Air conditioning may seem like a luxury, and in some ways it is, but it truly is a necessity—especially if you live in a hot climate. Air conditioning can keep the humidity under control in your home, reducing the risk of mold growth and the resulting symptoms. It also keeps you cool enough to prevent heat-related illnesses. But even if none of those things were true, your comfort alone matters. That’s why you need to call a technician for AC repair right away if it’s hot outside.

Here are several signs to look out for that indicate you need AC repair:

1. Insufficient Cooling – If your air conditioner is on but the airflow is weak or the air is warm, then these are clear signs you should call a professional. You deserve to have air conditioning that is working efficiently and delivering the benefits it is meant to provide.
2. Strange Noises – Grinding, squealing, or banging noises coming from your air conditioning unit are signs of underling problems like loose parts, worn motor bearings, electrical issues, etc.
3. Unpleasant Odors – Unpleasant odors that seem to be emanating from your air conditioning unit are often signs of microbial growth inside the unit. You may also notice a burning smell, which usually indicates a wiring problem.
4. Water or Refrigerant Leaks – Water leaks beneath your unit often indicate a clogged drain line, damaged drain pan, or frozen evaporator coil. Refrigerant leaks are dangerous because you could breathe in harmful Freon gas. You should turn off the unit, unplug it, leave the area, and call a professional for AC repair.