When it comes to taking care of your air conditioner, routine maintenance is essential for keeping your system running efficiently and extending its life. But how much of that maintenance can you do yourself, and when should you call in a professional? Understanding the difference between safe DIY air conditioner maintenance and tasks that require a trained technician can help you avoid costly mistakes while ensuring your AC stays in top shape.
At Galmiche & Sons, we’ve been serving St. Louis homeowners since 1950 with reliable HVAC service and expert guidance. In this guide, we’ll help you understand what AC care tasks you can handle at home and when it’s best to rely on a professional.
When you need to schedule air conditioner servicing with a professional, trust our experts. Call today or schedule online!
Why Air Conditioner Maintenance Matters
Whether it’s done by you or a licensed technician, regular air conditioner maintenance offers important benefits:
- Improved energy efficiency
- Longer equipment lifespan
- Fewer unexpected breakdowns
- Better indoor air quality
- Lower repair costs over time
However, not all maintenance tasks are created equal. While there are some simple steps every homeowner can take, other parts of your system are delicate, dangerous, or require special tools and knowledge.
What You Can Safely Handle Yourself
Here are a few simple DIY air conditioner maintenance steps that are safe and helpful for homeowners in St. Louis:
1. Change the Air Filter
This is the easiest and most important task. A dirty air filter reduces airflow and efficiency. Check your filter every 30–60 days and replace it if it looks dirty or clogged.
2. Clear Debris from the Outdoor Unit
Leaves, grass, and debris can block airflow and put extra strain on your system. Use a garden hose (on a gentle spray setting) to rinse off the fins, and clear at least two feet of space around the unit.
3. Inspect Vents and Registers
Make sure nothing is blocking your indoor vents. Keep them open and clear of furniture or curtains to maintain proper airflow.
Learn more about cleaning air vents for improved AC efficiency.
4. Check the Thermostat Settings
Make sure your thermostat is set to cooling mode and functioning properly. Upgrading to a programmable thermostat can improve efficiency and help you save on energy costs.
What You Should Leave to the Pros
Some tasks go beyond what’s safe or practical for a homeowner to attempt. These require a licensed HVAC technician:
1. Electrical and Refrigerant Work
Handling refrigerant or working with electrical components is not only dangerous but also illegal without proper certification.
2. Comprehensive System Inspection
Professional maintenance includes checking voltage, lubricating moving parts, testing system controls, and ensuring safe operation. These tasks require training and diagnostic tools.
3. Cleaning Evaporator and Condenser Coils
While you can rinse the outdoor unit gently, deep cleaning of coils involves disassembly and chemical cleaners that should only be used by a trained professional.
Learn more about inspecting and cleaning AC coils.
4. Checking Refrigerant Levels and Airflow Balance
If your AC isn’t cooling properly, guessing at the cause can lead to more damage. A pro can accurately diagnose and fix issues without voiding your warranty.
FAQs About DIY Air Conditioner Maintenance
You can lightly rinse the exterior of your outdoor coils, but deep cleaning should be done by a pro to avoid damage and ensure proper performance.
Most homes benefit from a filter change every 30–60 days. Homes with pets or allergies may need more frequent changes.
Yes, using a gentle spray to remove dirt and leaves is safe. Just avoid using a pressure washer, as it can damage the fins.
Let the Pros at Galmiche & Sons Help
While DIY air conditioner maintenance can be a great way to keep your system clean and running smoothly between tune-ups, professional maintenance is still the key to long-term reliability and performance. Our expert heating and air conditioning technicians serve homeowners across the St. Louis area with fast, friendly service and decades of experience.
Contact Galmiche & Sons today to learn more about our seasonal maintenance plans or to schedule an appointment for a full system check. We’re here to keep you cool and comfortable all year long.
