Why is My AC Not Working?

Is your AC not working? You’re not alone. It’s one of the most common calls we get from Kansas City homeowners, especially when temperatures climb into the 90s. This guide covers the 10 most common AC problems, what’s likely causing them, and exactly when to call a professional so a small issue doesn’t turn into a costly one.

A broken AC in a Kansas City summer isn’t just uncomfortable. It can be a health risk for kids, elderly family members, and pets. The longer you wait, the worse and more expensive the problem usually gets.

Read on for troubleshooting steps you can try right now, a clear breakdown of what’s a DIY fix versus what needs a licensed technician, and how to reach our team if you need same-day or 24/7 emergency AC service.

10 OF THE MOST COMMON REASONS WHY YOUR AC IS NOT WORKING

Some of these require a professional AC repair company like A.B. May to troubleshoot, diagnose, and fix. Some are simple fixes like repairing a part or changing the air filter. Others might require replacing the entire air conditioning system.

You can click each problem’s link for even more information on that specific issue, troubleshooting steps, and guidance on when it’s time to call us.

• AC not cooling: If your air conditioning is not cooling and blowing hot air, it could point to various issues, such as a dirty air filter, a refrigerant leak, or a worn-out condenser or fan motor. If a dirty air filter is to blame, you could also be dealing with indoor air quality issues.
• AC won’t turn on: If your AC unit won’t turn on, it might be time to replace the entire thing, or it could be something as simple as needing new batteries for your thermostat.
• AC running constantly: Is your air conditioning circulating cold air (or warm air) nonstop? An AC constantly running could mean the unit is too small to keep up with how cool you want it, especially on a hot Midwest day. It could also mean you have a dirty air filter.
• AC poor airflow: Poor air conditioning airflow typically starts with a dirty filter. It could also mean there are issues with your ductwork. This is one you want A.B. May to investigate.
• AC leaks water: If your AC leaks water, call us immediately! Your AC should not be leaking water. This could mean a freeze-up of the evaporator coil or an actual leak either from the AC system or somewhere in your ductwork.
• AC fan not working: The AC fan not working can be caused by various issues, such as a broken fan motor or condenser, a power surge, or broken fan blades.
• AC not cooling enough: If your AC is not producing enough cool air, it could be the air filter, refrigerant leak, your ductwork, or something mechanical. It could also be a sign that your unit is too small for your home. This is one that you need us for.
• Central air not working in one room: This one might be as simple as a closed or blocked vent. If not, it could be the air filter, a dirty evaporator coil, or your condenser is clogged with debris.
• AC smells bad: Nobody likes bad smells, especially if your AC spreads something through your home. This is an odd and potentially dangerous one. If you smell rotten eggs or anything off, turn off your AC immediately and open the windows. It could be a gas leak.
• AC making loud noise:Any time your AC makes a noise you’re not familiar with, turn it off! Call A.B. May right away. Loud noises could mean mechanical failure, bits and pieces rattling around the system, or something worse.

3 BASIC TROUBLESHOOTING STEPS WHEN YOUR AC STOPPED WORKING

Most AC issues require a licensed technician, particularly anything involving the evaporator coil, AC compressor, or refrigerant. Attempting those repairs yourself can cause additional damage and end up costing more in the long run. That said, there are a few simple things worth checking before you call us. Sometimes a quick fix is all it takes to get your system cooling again. If none of these steps solve the problem, our AC repair team is ready to help, with same-day appointments available throughout the Kansas City area.

1. Change the Air Filter

Changing your air filter is the single easiest thing you can do to keep your AC running well. Most filters need to be replaced every one to three months, but check your manufacturer guidelines since some systems have different requirements. Always use the filter size and MERV rating recommended for your unit. A wrong filter can restrict airflow just as much as a dirty one. Staying on top of this one task improves indoor air quality, strengthens airflow throughout your home, reduces strain on the system, and can extend the life of your equipment. If you’re noticing persistent air quality issues even with regular filter changes, it may be worth looking into a media filter or whole-home air purifier.

2. Swap Out the Thermostat Batteries

Fresh thermostat batteries are often the first thing our technicians check when an AC system isn’t responding. It takes less than a minute and costs almost nothing, making it worth trying before anything else. Most thermostat batteries last one to two years, but a low battery can cause inconsistent behavior well before it dies completely, including a unit that won’t turn on, cycles erratically, or doesn’t hold the set temperature. If new batteries don’t change anything, the issue is likely deeper in the system and worth a call to our AC repair team.

3. Check for Blocked Vents, Registers, and Condenser Issues

SHOULD YOU FIX AN AC THAT’S NOT WORKING YOURSELF?

It’s tempting to want to fix everything yourself, especially when you own a home. Home improvement projects, maintenance, and other to-do items are something every homeowner takes pride in doing.

Sometimes, though, leaving it to the professionals will save you time, money, and frustration when it comes to your AC unit. Unfortunately, trying to fix an air conditioning unit yourself may cause damage you can’t fix, resulting in you spending even more money with a company like us to resolve the issue.

If you’re not sure you should be fixing your AC yourself – don’t! Call A.B. May and schedule an appointment with us. Even if it’s a small fix, it’s better than having to fix something larger because you tried to do it yourself.

DON’T DELAY IF YOUR CENTRAL AC STOPPED WORKING, CALL A.B. MAY TODAY