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The Most Common AC Problems and How to Avoid Them

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As temperatures rise, your air conditioner becomes essential for comfort and health. But like any complex system, it can run into problems—especially if it’s not properly maintained. The good news? Most common AC issues are preventable with a little proactive care. Here’s a look at the most frequent air conditioner problems homeowners face—and how to avoid the need for air conditioning repair in Joliet, IL.

Dirty or Clogged Air Filters

One of the simplest, yet most often overlooked, causes of AC trouble is a dirty air filter. When the filter gets clogged with dust, pollen, and debris, it restricts airflow. This forces your system to work harder, increasing energy use and putting stress on components like the blower motor and evaporator coil.

Prevention Tip: Check and replace your air filter every 1–3 months, depending on the type of filter you use and whether you have pets or allergies. This small step makes a big difference in efficiency and lifespan.

Refrigerant Leaks

If your AC is blowing warm air or struggling to cool your home evenly, a refrigerant leak might be the culprit. Low refrigerant levels can cause the compressor to overheat or fail, leading to costly repairs.

Prevention Tip: During your annual AC maintenance, a technician can check refrigerant levels and inspect for leaks. Catching a slow leak early is far less expensive than dealing with a burnt-out compressor.

Frozen Evaporator Coils

When airflow is restricted or refrigerant is low, the evaporator coil can freeze. This prevents the system from properly absorbing heat, and your AC may run continuously without cooling the home.

Prevention Tip: Change your air filter regularly, keep return vents clear, and schedule seasonal maintenance. A technician will clean the coils and ensure airflow is optimized.

Electrical Issues

Faulty wiring, tripped breakers, and worn-out capacitors can prevent your system from turning on or cause it to shut down unexpectedly. These electrical issues not only reduce reliability but can also become fire hazards.

Prevention Tip: Only allow licensed HVAC professionals to handle repairs, and never attempt DIY fixes for electrical components. Annual tune-ups include electrical system inspections to ensure safety and functionality.

Dirty or Blocked Outdoor Unit

Your outdoor condenser unit needs adequate space and airflow to release the heat pulled from inside your home. If it’s surrounded by leaves, dirt, or other debris, it can’t do its job efficiently.

Prevention Tip: Keep the area around the outdoor unit clear. Trim back any nearby vegetation and wash off built-up grime with a gentle hose spray (after turning off the power). Include this in your spring yard cleanup routine.

Avoid Problems With Preventive Maintenance

Many homeowners only think about their AC system when it stops working—but routine care can prevent most of these issues. Schedule professional maintenance every spring before the summer heat kicks in. Your HVAC technician will clean internal components, check refrigerant levels, inspect electrical connections, and ensure your system is operating safely and efficiently.

Don’t Wait—Fix Problems Early

If you notice odd noises, weak airflow, or spikes in your energy bill, don’t wait to call for repairs. Addressing small problems early can prevent major breakdowns and extend the life of your AC system.

Ready for stress-free cooling this summer? Schedule your AC tune-up today and keep your system running reliably all season long!

Contact J&A today, sleep tight tonight!

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