Warning Signs Your A/C System Is on the Fritz

As temperatures rise, the last thing any homeowner wants is for their air conditioning system to break down. A failing A/C unit can lead to discomfort, costly repairs, or even a full system replacement if not addressed early. Recognizing the warning signs of an A/C system in trouble can help prevent major breakdowns and keep your home cool throughout the summer.

One of the most noticeable signs of a struggling A/C system is weak or warm airflow, which could signal an issue with the compressor, refrigerant levels, or a blockage in the ducts. Another red flag is unusual noises, such as grinding or rattling sounds coming from the unit. These sounds often indicate loose or failing components that need immediate attention.

Another key indicator is rising energy bills. If your A/C is working harder than usual to cool your home, it will consume more energy, leading to a noticeable increase in energy costs. This could be due to dirty filters, refrigerant leaks, or an aging system struggling to maintain efficiency.

Frequent cycling on and off is another common issue, often pointing to a failing thermostat, electrical problem, or an improperly sized unit. If your system is short cycling—turning on and off repeatedly without maintaining a steady temperature—it could be straining itself, increasing wear and tear.

If you notice any of these warning signs, scheduling A/C maintenance or repairs as soon as possible can help prevent a complete system failure. Routine inspections and servicing from McNally’s Heating & Cooling ensure that your A/C system remains efficient and reliable, keeping your home comfortable all season long.

Family-owned McNally’s Heating & Cooling was voted “Best Heating and A/C Company” in Kane County in 2021, 2022, 2023, and 2024, and has received over 2,000 five-star reviews on Google!

McNally’s Heating & Cooling

3491 Swenson Ave

St. Charles, IL 60174

Ph: 630-363-9067

McNallyHVAC.com