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Why Is My Air Conditioner Not Blowing Cold Air?


Keep Cool This Spring and Summer with Expert AC Repair Services Near You

Do you feel air flowing from your HVAC system or AC unit, but it doesn't seem to cool even if you lower your thermostat? There are various reasons why your AC may not be blowing cool air. As an AC repair contractor near you and serving Sammamish and the surrounding areas, at Bob's Hesting & Air Conditioning, we help you isolate the issues, pinpoint why your AC is not blowing cold air, and event provide vital repairs to help you avoid them. Below, we outline some of the top causes our technicians see, but we recommend not attempting DIY repairs as they can result in more damage, longer downtimes, and even bodily harm. 

SEE MORE: 7 Reasons Why HVAC Maintenance Plans Are Worth It 

Likely Reasons Your Air Conditioner Is Not Blowing Cold Air 

  • Low or Leaking Refrigerant: Refrigerants play a vital role in absorbing and releasing heat. When you have low levels, your system works much harder to cool the air.
  • Faulty Thermostat: Sometimes, your thermostat may wrongly tell the unit to blow warmer air if it’s not properly calibrated. 
  • Dirty Filters: As your filters clog up with dirt and dust, they restrict airflow and overheat the unit. In that case, safety switches may direct it to blow hot air or shut down. 
  • Ductwork Issues: Punctures in your ductwork leak air, making it harder for the AC to maintain a steady flow of cold air. 
  • Damaged Coils: Blocked coils diminish the heat escaping your home, making cooling much harder. 

Why You Should Work with a Professional AC Repair Team 

Our technicians have years of experience in diagnosing and repairing issues. They'll have a better chance of quickly identifying problems and fixing them. Additionally, our team has taken extensive training to address the safety risks of dealing with cooling units, or AC units that are not blowing cold air. These units include dangerous electrical components and hazardous chemicals that could result in serious bodily harm if not handled properly. 

The best thing you can do to try and avoid warm, stale air flowing through your home is to do proactive maintenance for your air conditioning unit. Our Guardian Maintenance Program includes precision tune-ups and safety inspections to help extend your equipment’s lifespan. You also get discounts on parts, labor, and new equipment purchases, no extra charges for urgent no-heat situations, ongoing customer education, and financing options. 

In addition to our maintenance plans, we provide filter replacements to help keep your AC unit running efficiently. Our Filter Replacement Program delivers a 4" Pleated Media Filter to your doorstep every 90 days. This program aims to improve indoor air quality by providing a filter significantly more effective than standard 1" spun fiberglass filters, capturing even microscopic particles. 

Struggling with AC issues? Choose Bob's Heating! We're Puget Sound's top residential HVAC contractor, family-owned since 1957. With three generations leading us, our deep-rooted family values ensure unmatched expertise. At Bob's Heating, you're not just a customer; you're part of the family. If you need air conditioning repair or installation, call or fill out our contact form

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