Air Conditioning + Heating

AC On Strike: Why Your AC Won’t Turn On

We all know how crucial a working air conditioner is for maintaining a comfortable environment in your home or business. At AGES Services Company in Southlake, TX, we get it. Your comfort is our priority, so we’re here to help you understand why your AC might be giving you trouble and how to fix it. Let’s dive in and keep you cool!

 

Common Reasons Why Your AC Won’t Turn On

1. Thermostat Issues

First things first, let’s talk about thermostats. It might sound basic, but the thermostat is often the culprit behind an unresponsive AC.

  • Thermostat Not Set Correctly: Make sure your thermostat is on, set to “cool,” and the temperature is lower than your room temperature. Sounds simple, but you’d be surprised how often this gets overlooked.
  • Faulty Temperature Sensor: If the thermostat can’t read the right temperature, your AC won’t kick in. Try replacing the batteries first. If that doesn’t work, it might be time for a new thermostat.

2. Power Supply Problems

No power, no cooling. Let’s check if your AC is getting the juice it needs.

  • Power Cord and Outlet: Inspect the power cord for any signs of damage. If it looks frayed, it’s time for a replacement. Also, make sure it’s plugged into a working outlet.
  • Circuit Breaker: Head to your electrical panel and see if the breaker for your AC is tripped. If it is, flip it back on. If it keeps tripping, it’s best to call a pro.
  • Indoor and Outdoor Shutoff Switches: Sometimes these switches get turned off accidentally. Locate them and make sure they’re both in the “on” position.

3. Dirty Air Filters

When was the last time you checked your air filter? Dirty filters can wreak havoc on your AC’s performance.

  • Impact of Dirty Filters: A clogged filter blocks airflow, causing your AC to work harder and sometimes freeze up.
  • How to Check and Replace Filters: If your filter looks dirty or you can’t remember the last time you changed it, swap it out for a new one. Your AC will thank you!

4. Icy Buildup

Ice on your AC unit is never a good sign.

  • Causes of Ice: This can be due to dirty filters, low refrigerant, or airflow issues.
  • Defrosting and Prevention: Turn off the AC and let it thaw completely. Then, check for underlying issues. If you’re not sure what’s causing it, give us a call.

Advanced Troubleshooting for Persistent Issues

1. Faulty Capacitors and Motors

These components are essential for your AC to run smoothly.

  • Signs of Problems: Trouble starting, frequent stopping, or clicking sounds can indicate issues with capacitors or motors.
  • Inspection and Replacement: If you suspect a problem, it’s best to have a professional take a look. These parts can be tricky to handle.

2. Condenser and Evaporator Problems

Cleanliness is key for these vital parts.

  • Dirty Components: Dirt and debris can block your condenser and evaporator, reducing efficiency.
  • Cleaning Procedures: While some basic cleaning can be done yourself, a thorough clean is a job for the pros.

3. Refrigerant Shortages

Your AC needs refrigerant to cool your home effectively.

  • Symptoms of Low Levels: Warm air or no cooling at all can indicate a refrigerant issue.
  • Professional Checks: Only a certified technician should check and refill refrigerant levels. Leaks need to be fixed to prevent future problems.

Additional Causes of AC Malfunctions

1. Wiring Problems

Electrical issues are a common cause of AC failures.

  • Identifying Wiring Issues: Check for any visible wiring problems. If you’re not comfortable with this, definitely call an expert.

2. Clogged Condensate Drain

A clogged drain can stop your AC in its tracks.

  • Clearing Clogs: Use a wet/dry vac to clear the drain line. If that doesn’t work, it’s time for a professional cleaning.

3. Dormancy Issues

Long periods of inactivity can lead to startup issues.

  • Reactivating the Unit: If your AC has been off for a while, it might need a little help to get going again. A quick inspection and manual restart by a technician should do the trick.

Deciding Between Repair and Replacement

When your AC won’t start, you’ll need to decide whether to fix it or get a new one.

  • Factors to Consider: Age, efficiency, and repair costs are key. Units over 12 years old might be better off replaced.
  • Repair vs. Replacement: If repairs cost more than 50% of a new unit’s value, replacement is often the smarter choice.

Preventive Maintenance Tips

Regular maintenance is your best defense against AC problems.

  • Homeowner Tasks: Change filters, keep the unit clean, and check for obvious issues.
  • Professional Maintenance: Schedule regular check-ups with us to keep your AC in top shape. Call our experts! 

Need Your AC Fixed? Call Our Go-To HVAC Experts!

If your AC is acting up and you’re not sure what to do, AGES Services Company in Southlake, TX is here to help. Give us a call or visit our website to schedule a service. Stay comfortable and let us take care of the rest!

For more HVAC tips and services, check out our other blogs on sealing and insulating ductwork and why regular HVAC service is essential for home comfort.