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AC Blowing Warm Air? 4 Common Causes Before You Assume the Worst 

There’s nothing worse than turning on your car AC in a hot DC summer and getting warm air instead of cold. Especially when you’re stuck in traffic near Capitol Hill or trying to get across town on I-395, a working AC matters.

Before you assume it’s a big repair, here are 5 common reasons your AC might not be cooling properly.

  1. Low Refrigerant

Your AC needs refrigerant to make cold air. If it’s low, the system can’t cool well. This usually happens slowly over time due to small leaks

  1. Dirty Cabin Air Filter

A clogged filter can block airflow into your car. That means even if the AC is working, you may not feel much cool air coming through the vents.

  1. Cooling Fan Issues

Your AC relies on fans to help release heat. If they aren’t working right, the AC may blow warm air—especially when you’re sitting in traffic around busy DC areas like the National Mall.

  1. AC Compressor Not Working

The compressor helps run the cooling system. If it doesn’t turn on, your AC won’t get cold, even if the fan is blowing

Driving in a Hot DC Summer

Hot, humid weather and heavy traffic around Capitol Hill and downtown DC put extra stress on your AC system. Small issues show up fast this time of year. The good news is most AC problems can be diagnosed quickly once checked by a technician. Ben Nielsen’s 10th Street Automotive can help make sure your vehicle is ready for the road. Give us a call at (202) 998-6267 or Book Online to schedule an AC inspection or service. We’ll help keep your vehicle cool and reliable all summer long.