Quick Troubleshooting Tips for Common A/C Problems

If you’ve invested in a good quality air conditioner and you keep it regularly maintained, you’ll likely have minimal problems through its life span. Nevertheless, it’s a good idea to equip yourself with basic knowledge of how your cooling system works so if it ever seems to malfunction, you’ll know what to do. Here are some common A/C problems and troubleshooting tips to help you cope.

A/C Not Cooling

If the A/C is blowing air but it’s not cool, it could be one of several causes, including a dirty air filter, dirty condenser coils or a low refrigerant charge. Check to make sure the control is set to “cool” and that the thermostat is set appropriately.

Leaking Water

An air conditioner has a condensate line and pan, where condensing moisture from your home’s air supply is drained away. If there’s a hole or clog in the line or a hole in the pan, water could be leaking out. The condensate pump might also be broken.

No Air Is Blowing

Most often, this happens when the fan motor burns out. Call a pro to replace the motor. It might also be a dirty filter causing air resistance. You should check the air filter regularly for dirt buildup.

Ducts Popping

Ducts can make popping and banging sounds for a number of reasons, but they’re usually caused by the sheet metal expanding and contracting as the air flows through the ductwork.

System Isn’t On

Often, homeowners call the service pro before they make sure the controls are set to “on” or “auto” and “cool.” Also, check the power source by flipping the breaker and checking the fuse. Make sure the power switch to the compressor is on, along with the 240-volt disconnect next to the compressor.

If these troubleshooting tips don’t fix common A/C problems, contact the HVAC professionals at Stack Heating, Cooling, Plumbing and Electric. We’ve served greater Cleveland since 1976.

Our goal is to help educate our customers in Cleveland, Ohio about energy and home comfort issues (specific to HVAC systems). For more information about A/C problems and other HVAC topics, download our free Home Comfort Resource guide.

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