AC Maintenance Checklist: DIY What, Call a Pro When

Your air conditioning system is running. It’s cooling your home. Everything feels fine. But here’s the thing—AC maintenance isn’t something you do when something breaks. It’s something you do to prevent breakdowns, especially as summer ramps up and your system works overtime.

Not sure what you can handle yourself? Call 919-864-0824 or contact us online to schedule a professional AC tune-up.

The question most homeowners have isn’t whether they should maintain their AC. It’s which maintenance tasks they can handle themselves and which ones require a professional.

What You Can Do Yourself

Not every AC maintenance task requires a service call. There are several straightforward things you can do right now to keep your system running smoothly.

Change or Clean Your Air Filter

This is the easiest and most important thing you can do. Your filter catches dust, debris, and allergens. When it gets clogged, your system has to work harder, runs less efficiently, and costs you more to operate. Check your filter monthly during cooling season. If it looks dirty, replace it. Most filters are standard sizes you can grab at any hardware store for $10-20. If you have a reusable filter, follow the manufacturer’s instructions for cleaning.

Clear Debris Around Your Outdoor Unit

Your AC condenser (the unit outside) needs airflow to function properly. Walk around it and remove any leaves, grass clippings, branches, or other debris. Give it a gentle hose spray to remove surface dust and dirt. Keep plants and shrubs at least two feet away. This takes 15 minutes and can make a noticeable difference in efficiency.

Check Your Thermostat Settings

Make sure your thermostat is set to cool mode and the temperature is actually lower than your home’s current temperature. This sounds obvious, but thermostats get bumped or adjusted accidentally more often than you’d think. If you have a programmable or smart thermostat, double-check that your schedule makes sense for your routine. A properly programmed thermostat can save you money and keep your home comfortable.

Inspect Your Vents and Registers

Walk through your home and make sure all air vents and registers are open and unobstructed. Don’t let furniture, curtains, or closed doors block airflow. If some rooms are significantly warmer or colder than others, this might be why. Good airflow distribution is essential to system performance.

What Requires a Professional

Some maintenance tasks are beyond the DIY zone. These require training, specialized tools, and licensing. Trying to do them yourself can void your warranty, cause damage, or create safety issues.

Refrigerant Handling

Your AC system uses refrigerant to cool your home. If refrigerant levels are low, your system won’t cool properly. But you can’t just buy refrigerant and add it yourself. Refrigerants are regulated, require specific handling, and improper charging can damage your compressor. A Salmon’s technician has the equipment to check levels, detect leaks, and recharge your system properly. A low refrigerant charge is a sign something else is wrong—usually a leak—which Salmon’s needs to find and fix. This is one of the most common reasons for AC repair calls.

Coil Cleaning

Your system has two coils: the evaporator coil (inside) and the condenser coil (outside). Over time, these collect dirt and mold, which reduces efficiency. Cleaning them requires dismantling parts of your system and using specialized cleaning solutions. This is a job for Salmon’s with the right tools and knowledge.

Electrical and Compressor Issues

Your AC has complex electrical components and a compressor that’s the heart of the system. If something’s wrong with the wiring, capacitor, or compressor, you need a licensed technician like Salmon’s. These components are expensive, dangerous to mess with, and critical to your system’s operation. A mistake here can be costly.

System Inspection and Testing

Salmon’s can test your system’s performance, measure airflow, check ductwork for leaks, and identify issues before they become problems. They have the diagnostic tools to catch problems your eye can’t see.

The Real Difference

Here’s the distinction: DIY maintenance keeps your system in good working order day-to-day. Salmon’s maintenance catches problems early and keeps your system running at peak efficiency. You need both.

Skipping the small stuff—changing filters, clearing debris—puts strain on your system. Skipping Salmon’s maintenance means you’ll miss early warning signs of bigger problems. A small issue caught early by Salmon’s costs far less than an emergency repair or full system replacement down the road.

Think of it like your car. You check the oil and tire pressure yourself. But you take it to a mechanic for complex diagnostics and repairs. Same principle applies to your AC.

Your Action Plan

In the meantime, change your filter, clear the debris around your outdoor unit, and make sure your thermostat is set correctly. These simple steps cost you nothing and keep your system working efficiently.

For professional maintenance, most experts recommend a spring tune-up for cooling systems. If you haven’t had a Salmon’s AC service in the last year, now’s the time.

Call 919-864-0824 or schedule your AC maintenance online. Let’s keep your system running strong.

Your AC will thank you. And so will your energy bill.