Causes & Troubleshooting
There’s nothing worse than turning on your air conditioner during a hot summer, only to feel warm air blowing out. Yes, it’s frustrating, but many common AC problems are easier to fix than you might think. Some issues you can troubleshoot yourself; others may need a professional’s help. Here’s a rundown of common reasons your AC might be blowing warm air, and potential things you can do about it.
Thermostat Issues
Start with the thermostat because it’s one of the easiest things to check. Make sure it’s turned on, set to cooling mode, and programmed to a temperature lower than the room temperature so it actually initiates the cooling cycle. Sometimes it’s something as small as dead batteries or a setting that got bumped by mistake.
Dirty Air Filter
When the filter gets too dirty, it blocks airflow and makes it harder for your system to cool your home. The good news is that checking your filter can be quick and simple. Just pop it out, hold it up to the light, and if it looks dirty or clogged, swap it out if it’s a disposable filter, or clean it if it’s a reusable model. Filters should be checked once a month anyway. Regular maintenance is a crucial element of ongoing, solid AC performance.
Clogged or Frozen Coils
Frozen or dirty coils make it hard for your AC to cool the air. Look for any ice buildup around the indoor or outdoor units or listen for strange noises. You can try shutting off the system and letting the coils thaw, but if the problem keeps coming back, it’s best to call in a professional to make sure everything is running the way it should.
Refrigerant Leak
Low refrigerant is another reason your AC might be blowing warm air. You can spot a leak if you look out for ice on the refrigerant lines, hissing noises near the unit, or your system running but not cooling the house. Refrigerant leaks can also cause your system to cycle on and off more often, which strains the compressor and can lead to more intensive repair needs if not addressed quickly. For this one, you’ll want a licensed technician to handle the repair and recharge; a refrigerant issue isn’t something you can safely fix yourself.
Broken Capacitor
If your AC isn’t starting up properly or keeps blowing warm air, a faulty capacitor might be the cause. The capacitor helps power the outdoor unit, and it can wear out over time. Replacing it is usually a simple repair, but it’s a job for a professional since it involves handling electrical components. Issues with a capacitator typically get flagged in routine HVAC upkeep too.
Schedule AC Repairs in Erie Today
If your AC still isn’t cooling after a few quick checks, it’s time to call the professionals at Nerthling’s Heating & Air Conditioning; we treat your home like it’s our own.
We’ve been proudly serving Erie, Millcreek, Fairview, and many other surrounding areas since 1952. We provide reliable service with honest, upfront pricing. Our licensed, insured, and background-checked technicians can quickly find the root cause of a problem and get your system running again.
Need fast, reliable AC service in Erie, PA? Contact Nerthling’s Heating & Air Conditioning today!
