Milwaukee HVAC · March 10, 2025 · 3 min read

DIY AC Maintenance: Save Money and Keep Cool This Summer

Homeowner cleaning A/C condenser coils with coil cleaner

Summer is just around the corner, and the last thing you want is for your AC to fail you on a scorching day. Did you know that a simple DIY hack could help keep your air conditioner running efficiently while saving you hundreds of dollars in maintenance costs? HVAC professionals charge around $100 for a spring tune-up, but you can do it yourself with just a few simple steps. Let's dive in!

Why Cleaning Your Condenser Coils is Essential

Over time, dirt and debris build up on your AC's condenser coils, reducing efficiency and increasing energy costs. By giving your coils a proper cleaning, you’ll allow air to flow freely through the system, ensuring better performance and preventing costly breakdowns.

What You Need

  • Rubber gloves for safety
  • Protective eyewear
  • A can of coil cleaner (available online or at hardware stores)
  • A garden hose
  • A screwdriver (if you choose to remove the lid)
  • (Optional) A shop vacuum to remove trapped debris

Step-By-Step Guide to Cleaning Your AC Coils

1. Turn Off the Power

Before anything else, safety first! Turn off the disconnect switch by pulling out the plastic tab. Store it upside down in the same slot to disconnect the power completely.

2. Apply the Coil Cleaner

Spray the coil cleaner evenly from the bottom up, ensuring that foam covers the entire surface. Let it sit for 5-10 minutes so it can break down dirt and grime.

3. Remove the Lid (Optional but Recommended)

For a deeper clean, remove the lid by unscrewing the bolts around the top. Be careful, as the condenser fan is attached with wires. Tilt the lid to the side and secure it in place.

4. Rinse the Coils

Using a garden hose, spray water from the inside of the condenser outward. This will push dirt and debris out effectively. If you didn’t remove the lid, simply rinse from the outside, making sure not to bend the delicate fins.

5. Clean the Bottom of the Unit

If there’s debris accumulated at the bottom, use a shop vacuum to clear it out. This ensures maximum airflow and efficiency.

6. Reassemble and Inspect

Once everything is clean, replace the lid and secure it with the screws. Make sure no dirt or obstructions are blocking the airflow around your unit.

Enjoy Quieter and More Efficient Cooling

With clean condenser coils, your air conditioner will work more efficiently and even reduce noise levels. Speaking of noise – did you notice the rubber cover on the compressor in the video? If you want to learn more about how to make your AC unit quieter, check out our next video for expert tips!

Call to Action: Professional Tune-Up Services

While DIY maintenance can enhance your AC's performance, having a professional tune-up ensures your system operates at peak efficiency and longevity. If you're in the West Allis, Wisconsin area, consider reaching out to E & R Heating and Cooling, a trusted local HVAC specialist since 2003. They offer comprehensive maintenance services to keep your air conditioning system in top shape.

Contact Information:

  • Phone: (414) 202-5001
  • Address: 8000 W National Ave, West Allis, WI 53214
  • eandrheatingandcooling.com

Scheduling a professional tune-up can prevent unexpected breakdowns and ensure your home stays cool throughout the summer. E & R Heating and Cooling is committed to providing reliable and efficient service to meet your HVAC needs.

Need a Pro? E & R Heating and Cooling Is Here 24/7

Serving West Allis and all of Milwaukee County since 2003 — honest diagnostics, upfront pricing, and emergency service whenever you need it. Call 414-202-5001 or request a free quote.

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