Why Is My Air Conditioner Struggling in the Heat?

Summer heat means that homeowners throughout Central PA rely on their AC systems to keep them comfortable. Nobody likes to think about the dreaded moment their air conditioner starts blowing warm air. Whether you’re dealing with weak airflow or a unit that’s decided to stop working altogether, understanding common AC problems (and how to prevent them) can help you stay cool and avoid emergency service calls.

At Home Climates, we want to help you keep your system running smoothly so you and your family can stay cool and comfortable. In this article, we’ll talk about how to identify if your AC system is struggling, things you can do to help it run better, and how Home Climates can help. Keep reading to learn more!

5 Common Air Conditioning Problems and How to Prevent Them

1. Dirty or Clogged Air Filters
   Air filters do the heavy lifting when it comes to trapping dust, pollen, and other airborne particles. But in the height of summer, they can clog up fast, especially if you have pets or live near ongoing construction. When that happens, your system has to work harder to push air through, which leads to decreased efficiency and higher energy bills.
   DIY Tip: Check your filters monthly and replace them as needed, typically every 30 to 90 days, depending on your system and lifestyle.
2. Blocked Outdoor Unit
   Your outdoor condenser unit needs breathing room! When it gets crowded with weeds, tall grass, or debris, airflow is restricted, causing your system to overheat or shut down altogether.
   DIY Tip: Keep at least a 2-foot radius around the unit clear, and check regularly for leaves, bird nests, or grass clippings. A gentle rinse with a hose can help wash away dirt buildup. Just turn off the power first for safety!
3. Low Refrigerant or Leaks
   If your AC starts blowing warm air or your electric bill spikes with no explanation, you might be low on refrigerant, especially if there’s a leak. This isn’t a DIY job, since handling refrigerant requires EPA certification.
   When to Call the Pros: If you notice hissing sounds, ice buildup on your unit, or inconsistent cooling throughout your home, it’s time to let Home Climates take a look. We’ll safely diagnose, repair, and recharge your system.
4. Thermostat Malfunctions
   Sometimes the issue isn’t your AC at all; it’s your thermostat. Dead batteries, misconfigured settings, or faulty sensors can all lead to inconsistent temps or a non-responsive system.
   DIY Tip: Replace batteries regularly, double-check your settings (especially after a power outage), and keep your thermostat away from direct sunlight and other heat sources.
5. Drainage Issues
   During the summer, your AC works hard to dehumidify the air, meaning gallons of condensation have to drain away from your unit. If the condensate line gets blocked, water can back up and cause leaks, musty odors, or even mold.
   DIY Tip: Inspect the drain pan for standing water, and make sure your condensate line (usually a white PVC pipe near your unit) is clear.

Don’t suffer with struggling AC. Call Home Climates to help.

Taking a few simple steps now, such as changing filters, clearing away brush, and staying alert to changes in performance, can make all the difference when the temps skyrocket. But if your AC does act up, don’t sweat it! Whether it’s a routine maintenance visit or an emergency repair, Home Climates has your comfort covered. Call us anytime to schedule service or ask about seasonal tune-ups!