Top Signs Your Air Conditioner Is About to Fail

When the summer heat rolls into Westmoreland County, a functioning air conditioner isn’t a luxury—it’s a necessity. But like any hard-working appliance, your A/C unit can wear down over time. Catching signs of trouble early can help you avoid unexpected breakdowns, costly repairs, or even full system replacement.

Here are the top warning signs your air conditioner is about to fail, brought to you by the experts at Van Bremen’s Heat & Air.

1. Warm Air from the Vents

If your A/C is blowing warm or room-temperature air, that’s an immediate red flag. This could be due to a refrigerant leak, compressor failure, or a thermostat issue. Either way, it’s time to call in a professional.

2. Weak Airflow

Poor airflow is often a sign that the system’s blower motor is failing or there’s a blockage in your ductwork. If certain rooms feel stuffier than others, your unit may be struggling to push cooled air evenly throughout your home.

3. Strange Noises

Air conditioners should hum—not clang, buzz, or screech. Unusual noises can indicate everything from loose parts and electrical issues to a failing compressor or fan motor. Don’t ignore those odd sounds; they usually get worse with time.

4. Frequent Cycling

If your A/C keeps turning on and off more frequently than usual (known as “short cycling”), it may be overworking to maintain your set temperature. This not only drives up energy costs but could also signal a deeper issue with the thermostat, refrigerant levels, or evaporator coils.

5. Bad Odors

A musty smell could mean mold inside your system or ductwork, while a burning smell could indicate an electrical issue. Either one is reason to call a professional right away—especially if the smell gets stronger when the unit is running.

6. Rising Energy Bills

Has your utility bill spiked, even though your usage hasn’t changed? A failing A/C system may be using more energy to compensate for its inefficiency. Over time, that adds up—both in energy costs and wear on your equipment.

7. Moisture or Leaks Around the Unit

Excess moisture or pooling water near your A/C unit could indicate a blocked drain line or refrigerant leak—both of which can lead to serious damage if left unaddressed.

Don’t Wait for a Total Breakdown

At Van Bremen’s Heat & Air, we help homeowners across Western Pennsylvania stay ahead of HVAC issues before they turn into emergencies. If you’re noticing any of the signs above, schedule a professional inspection today. Our expert technicians will identify the problem, recommend honest solutions, and keep your home cool and comfortable all summer long.