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If your air conditioner is running but your home still feels uncomfortably warm, you’re not alone. At Edelman, we get frequent calls from homeowners across Elkhorn, WI, asking the same question: Why isn’t my AC getting the house cool enough?
An underperforming air conditioner can be frustrating, especially during Wisconsin’s hot and humid summer months. The good news? There’s usually a clear cause—and a professional AC repair solution. Here’s a look at the most common reasons your AC might not be doing its job and what you can do about it.
1. Dirty Air Filter
A clogged air filter is one of the simplest and most common reasons for poor cooling performance. When your filter is full of dust and debris, it restricts airflow through your HVAC system, making it harder for your AC to circulate cool air throughout your home.
Solution: Check your air filter monthly and replace it at least every 1–3 months during peak usage.
2. Low Refrigerant Levels
Your AC uses refrigerant to absorb heat from inside your home and release it outdoors. If refrigerant levels are low—often due to a leak—your system won’t be able to cool effectively.
Warning signs include warm air blowing from vents, ice forming on refrigerant lines, or a hissing noise near the outdoor unit.
Solution: Call a licensed technician from Edelman to inspect the system, locate the leak, and recharge the refrigerant to manufacturer specifications.
3. Leaky or Poorly Insulated Ductwork
Your AC may be producing cold air, but if your ductwork is leaking or poorly insulated, that air may never reach your living spaces. Conditioned air can escape into walls, attics, or crawl spaces—wasting energy and leaving you uncomfortable.
Solution: Have our team perform a duct inspection and sealing service to improve system efficiency and comfort.
4. Thermostat Issues
Sometimes, the problem isn’t with the air conditioner itself—it’s with the thermostat. Incorrect settings, dead batteries, or a malfunctioning sensor can prevent your AC from running when it should or cause it to shut off too early.
Solution: Make sure your thermostat is set to “cool” mode and programmed correctly. If issues persist, Edelman can diagnose and repair or replace your thermostat.
5. An AC System That’s Too Small
If your air conditioner is undersized for your home, it will struggle to meet your cooling demands—especially during extreme temperatures. Constant running without reaching your set temperature is a key indicator that your system may not have enough capacity.
Solution: Our comfort specialists can perform a load calculation to determine if your current system is properly sized for your home’s square footage, insulation, and layout.
6. Lack of Maintenance
Like any mechanical system, your air conditioner needs regular maintenance to function at its best. Without annual inspections, problems like dirty coils, worn parts, or improper refrigerant levels can go unnoticed—reducing efficiency and comfort.
Solution: Schedule a tune-up with Edelman to keep your system clean, calibrated, and ready to perform.
Trust Edelman for HVAC Repair
At Edelman, we take pride in delivering top-quality HVAC Repair in Janesville and the surrounding areas. Whether your AC needs a simple fix, routine maintenance, or a complete replacement, our certified technicians are here to help.
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