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How to Maintain Your Home’s AC Unit: DIY Tips

If you need help knowing how to maintain your home’s AC unit, this guide will give you all the steps to maintain your central air conditioner and keep it running at its best. A little routine maintenance for your HVAC system can go a long way toward keeping your home cool and comfy without breaking the bank. 

In general, keep an eye (and an ear) out for anything unusual going on with your AC. Is it blowing warm instead of cool air? Making strange noises? Leaking? These are all signs that your AC might need some attention. Don’t ignore them; dealing with problems early can prevent the need for more expensive repairs in the long run. 

Step-by-Step Maintenance Guide

Now, let’s roll up our sleeves and get into some easy steps for DIY maintenance. Don’t worry, you can do it!

1. Turn Off the Power and Clear All Debris

Safety first! Before you start poking around, turn off the power to your AC at the circuit breaker. We don’t want any shocking surprises, right? Also, clear out any leaves, twigs, or debris crowding the unit.

2. Clean and Replace Your AC Filters

Clean or replace dirty filters every few months – more often if you’ve got pets or allergies. A clean filter improves energy efficiency as well as indoor air quality. Trust us, your AC (and your allergies) will thank you.

3. Clean the Condenser and Evaporator Coils

The coils in your AC can get pretty grimy over time. Give them a gentle cleaning with a soft brush or mild soapy water. Clean coils mean a happy, efficient AC.

4. Straighten Fins on Condenser Coils

Sometimes, the fins on your AC can get a bit bent out of shape. You can carefully straighten them out with a fin comb if you’re feeling handy. Be gentle!

5. Unclog Drain Channels

Water should be draining away from your cooling system, not pooling around it. Make sure the condensate drain channels are clear. A mixture of water and vinegar can help keep things flowing smoothly.

6. Verify Proper Airflow Around the Unit

Don’t forget about airflow! In addition to changing your filter, give your ductwork a quick once-over for any debris or leaks. Make sure your outdoor unit and vents aren’t blocked by plants or junk. Good airflow keeps your AC happy and your energy bills lower.

7. Level the Condenser Unit

Your outdoor AC unit should be level for peak performance. If it looks a bit wonky, you might need to adjust its footing or add gravel underneath.

When to Hire a Professional

Now, I know what you’re thinking – “This sounds like a lot of work!” And you’re not wrong. If any of this feels overwhelming, or if you notice more severe issues like mold, no airflow, or persistent problems, the best thing is to call in the pros. That’s what we’re here for. We’ll tackle all this and more in your maintenance appointment.

Window AC Units

For those of you with window units, don’t feel left out! You can show your AC some love, too. Clean those filters and coils, and make sure the unit is sealed snugly in the window. When it’s not in use, store it somewhere dry and covered – treat it like the valuable appliance it is!


Remember, taking care of your AC isn’t just about keeping cool. It’s about reducing energy costs, extending the life of your air conditioner, and avoiding those painful emergency repair bills.

So, why not set a reminder to give your AC a checkup at least once a year? Your future sweaty self will thank you!

Got questions? Don’t sweat it! Whether you’re wondering about refrigerant levels (leave that to the pros, by the way) or how often to change your filters, there’s someone at Service Minds One Hour Air Conditioning & Heating who can help. And if you’re thinking about getting your AC serviced, we can do that too.

Regular maintenance of your home’s AC unit is essential for optimal performance and longevity. Following these steps will help you keep your AC unit running smoothly, providing a comfortable environment for you and your family.