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Step-by-Step Guide to Professional AC Maintenance

When the summer heat rolls in, a reliable air conditioning system becomes more than a luxury—it’s a necessity. But to keep your system running efficiently, quietly, and safely, regular maintenance is essential. Here’s a step-by-step breakdown of what professional AC maintenance involves, and why it’s such a smart investment for Barron’s residential customers.

Schedule your first maintenance appointment today by calling our hotline.

This is an image of a baron HVAC technician working on an AC unit. The headline reads what to expect from a pro AC tuneup.

Step 1: System Inspection

Every professional maintenance service begins with a comprehensive inspection. The technician checks all major components of your AC system, including the condenser unit, evaporator coil, blower motor, electrical connections, and thermostat. This inspection helps identify any wear and tear or potential issues that could lead to breakdowns if left unaddressed.

Step 2: Cleaning Internal Components

Dust, debris, and mildew can build up inside the system, reducing its efficiency and air quality. The technician will determine if your condenser, evaporator, or blower wheel need extensive cleaning. Most Coils can be brushed and cleaned but if a chemical cleaning is needed technicians can discuss what that entails. A clean system not only performs better but also helps reduce allergens in the air.

Step 3: Checking Refrigerant Levels

Low refrigerant levels can cause your air conditioner to blow warm air or even freeze up completely. During a maintenance visit, our technician will check refrigerant levels and inspect for any visible signs of a leak. If a leak is suspected but not immediately visible, they may recommend a full leak search.While some customers choose to recharge the system to restore cooling, it’s important to understand that this doesn’t address the root cause. Recharging can temporarily bring the system back to working condition, but without locating and fixing the leak, it’s impossible to know how long the fix will last.

Step 4: Electrical Testing and Calibration

AC systems rely on complex electrical systems to operate. The technician tests voltage and current on motors and capacitors, tightens connections, and calibrates the thermostat. These checks help prevent future electrical failures and ensure your AC operates safely and efficiently.

Step 5: Lubrication and Mechanical Adjustments

Moving components like fan motors and compressors naturally generate heat and friction. If the system includes older motors that require lubrication, the technician will apply it during maintenance. However, most modern motors use sealed bearings and do not need lubrication. If any signs of leaking are detected from these components, they should be replaced promptly to prevent issues like overamping or motor seizure.

Step 6: System Performance Test

Finally, the technician runs the system through a complete cycle to ensure everything is functioning properly. They’ll measure airflow, check temperature differentials, and confirm the thermostat settings are correct. This final step ensures your AC is ready for peak performance.

Why Professional Maintenance Is So Valuable

Regular professional AC maintenance offers a host of benefits that go beyond just keeping your home cool.

  • Improved Efficiency: A well-maintained AC uses less energy, which translates to lower utility bills.
  • Extended Lifespan: Routine care reduces the strain on your system and helps prevent costly breakdowns, ultimately extending its service life.
  • Better Air Quality: Cleaning filters, coils, and ducts improves indoor air quality—critical for those with allergies or respiratory concerns.
  • Fewer Repairs: Small issues are caught early before they turn into major, expensive repairs.
  • Peace of Mind: Knowing your AC has been professionally checked gives you confidence that it will keep your home comfortable even during the hottest days.

Investing in regular AC maintenance is a proactive way to save money, stay comfortable, and protect one of your home’s most valuable systems. Schedule your service before summer hits—and keep your cool all season long.

Our team of Home Performance Experts has served the I-5 corridor from Blaine to Marysville, Oak Harbor to Concrete, and the San Juan Islands since 1972 with a mission of Improving Lives™. We look forward to serving you too! Contact Barron Heating today for routine sump pump maintenance. 

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