AC Not Cooling in Des Moines? 7 Steps to Check Before Calling for Repair

Summer in Des Moines means enjoying the outdoors; hiking at local parks, kayaking at Gray’s Lake Park, playing a round of golf at Bright Grandview Golf Course, and keeping your home a cool, comfortable oasis. But nothing disrupts that comfort faster than an air conditioner that's not cooling effectively. Before you pick up the phone to schedule an AC repair in Des Moines, there are a few simple checks you can perform yourself that might quickly solve the problem and save you a service call.

This guide will walk you through 7 common issues and DIY AC check steps you can take if your AC unit isn't cooling your Des Moines house to your satisfaction.

1. Check Your Thermostat Settings

It might seem obvious, but it's worth double-checking your thermostat. Ensure it's set to "Cool" and that the desired temperature is lower than the current indoor temperature. Accidentally bumping the setting or switching it to "Fan Only" happens more often than you think. Also, check the batteries in your thermostat if it's a digital model. A blank or low-battery indicator can prevent the AC from engaging.

2. Inspect and Replace Your Air Filter

A clogged or dirty air filter is one of the most common reasons for an AC not cooling properly. A filter restricts airflow, causing the unit to work harder and potentially freeze up. Locate your air filter (usually in the air handler, a return vent, or the furnace) and check its condition. If it's dirty, replace it with a clean one. This simple AC troubleshooting step can significantly improve performance.

3. Examine the Outdoor Unit (Condenser)

Head outside to your AC condenser unit. Check for anything blocking the airflow around the unit, such as dirt, leaves, or debris. Make sure there's at least two feet of clear space around the unit. Carefully and safely clear away any obstructions. Also, visually inspect the fins on the outside of the unit. If they are bent or heavily soiled, they can impede heat transfer. (Note: Cleaning the fins thoroughly often requires professional tools and knowledge).

4. Check for Frozen Coils

If your AC is running but blowing warm air, or if you see ice buildup on the refrigerant lines or the outdoor unit, your evaporator coil might be frozen. This is often caused by restricted airflow (like a dirty filter) or low refrigerant levels. If you suspect frozen coils, turn off the AC immediately at the thermostat and the power disconnect near the outdoor unit. Allow the unit to thaw completely (this can take several hours). Once thawed, change the air filter and restart the system. If it freezes again, it indicates a more significant issue.

5. Ensure All Vents Are Open and Unobstructed

Walk around your Des Moines home and make sure all supply and return vents are open and not blocked by furniture, curtains, or rugs. Closed or blocked vents restrict airflow, leading to uneven cooling and potential system strain.

6. Check the Circuit Breaker

A tripped circuit breaker can also be the culprit. Locate your home's electrical panel and look for a breaker that has flipped to the "off" position or is somewhere in between "on" and "off." If you find a tripped breaker, reset it by turning it completely off and then back on. If the breaker trips again immediately or frequently, there's an electrical issue that requires professional attention.

7. Listen for Unusual Noises

Your AC unit should run relatively smoothly. If you hear strange grinding, hissing, rattling, or banging noises, it could indicate a mechanical problem. Turn off the unit and investigate if you can safely identify an obvious issue like a loose panel. However, unusual noises often point to internal component problems that require a trained technician.

When to Call for AC Repair in Des Moines

If you've gone through these DIY AC check steps and your AC unit is still not cooling your Des Moines house effectively, or if you encounter any of the following, it's time to call in the professionals:

• The circuit breaker trips repeatedly.
• You hear persistent unusual noises.
• You suspect refrigerant leaks (listen for a hissing sound or notice a chemical odor).
• The unit freezes up repeatedly.
• There is water pooling around the indoor unit.
• You've performed the checks, and the AC is still not cooling adequately.

Attempting complex repairs yourself can be dangerous and may cause further damage to your system.

Citywide Heating and Air Conditioning Inc.: Your Local Des Moines AC Experts

For reliable and prompt AC not cooling Des Moines service, trust the experienced technicians at City Wide Heating and Air Conditioning Inc. We have been serving the Des Moines metro area, including Des Moines, for over 50 years. Our team can diagnose and repair all makes and models of air conditioners, ensuring your home is cool and comfortable again quickly and efficiently.

Don't suffer in the heat. If these troubleshooting steps don't solve your AC issues, contact City Wide Heating and Air Conditioning Inc. today for expert AC troubleshooting in Des Moines and repair services.

Call us at 515-274-9361 to schedule an appointment.

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