Texas summer doesn't ease in — it hits hard, usually by late April. If your AC hasn't run in months, firing it up on the first 95-degree day without any prep is how you end up calling for emergency service. A little spring maintenance now saves you from a breakdown when you need cooling the most. Here's what to do before the heat arrives.
DIY Steps (Do These This Weekend)
1. Replace the air filter. This is the single most impactful thing you can do. A dirty filter restricts airflow, makes your system work harder, increases energy bills, and can cause the evaporator coil to freeze. Replace it with the same size filter — check the side of your current filter for dimensions. For Central Texas homes with pets or allergies, a MERV 8-11 filter is the sweet spot between filtration and airflow.
2. Clear the area around your outdoor unit. Over fall and winter, leaves, grass clippings, and debris accumulate around the condenser. Clear everything within 2 feet of the unit on all sides. Trim any bushes or vegetation that's encroaching. The condenser needs unobstructed airflow to release heat — if it's choked, your system works harder and your electric bill climbs.
3. Gently clean the condenser fins. Use a garden hose (not a pressure washer) to spray the outdoor unit's aluminum fins from the inside out. This removes the dirt and pollen that cakes on during spring. Be careful — the fins are delicate and bend easily. If they're severely clogged, a professional cleaning is better.
4. Check the condensate drain line. The white PVC pipe that runs from your indoor air handler to the outside carries condensation from the evaporator coil. In Texas humidity, this line produces a lot of water — and it can clog with algae and slime. Pour a cup of white vinegar down the drain line access point (usually a T-shaped fitting near the air handler) to keep it clear. A clogged drain line is the #1 cause of AC shutoffs in summer.
5. Test the system. Set your thermostat to cool, drop the temperature a few degrees below room temp, and let the system run for 15-20 minutes. Check that cool air comes from all vents. Listen for unusual noises — grinding, squealing, or banging. Check that the outdoor unit's fan is spinning and the compressor engages. If anything seems off, schedule a service call before the rush.
6. Check your vents. Walk through the house and make sure all supply and return vents are open and not blocked by furniture, rugs, or curtains. Blocked vents cause pressure imbalances that make your system work harder and can create hot spots in the house.
What a Professional Tune-Up Includes
A spring AC tune-up goes beyond what you can do with a garden hose and a filter. Here's what a technician checks:
Refrigerant levels. Too little refrigerant means your system can't cool effectively. Too much can damage the compressor. A technician measures the charge and checks for leaks. You cannot check or add refrigerant yourself — it requires specialized equipment and EPA certification.
Electrical connections. Loose connections cause intermittent failures and can be a fire hazard. A technician tightens all electrical connections, checks voltage and amperage, and tests the capacitor (the component that fails most often in Texas heat).
Coil cleaning. The evaporator coil (indoor) and condenser coil (outdoor) both accumulate dirt that reduces efficiency. A professional cleaning restores heat transfer and can noticeably improve cooling performance.
Moving parts. Fan motors, blower motors, and belts wear over time. A technician checks for bearing wear, lubricates moving parts, and identifies components that are close to failure before they break during peak season.
Thermostat calibration. A thermostat that reads 72°F when the room is actually 75°F means your system isn't cooling as expected. A technician can verify accuracy and recalibrate if needed.
When to Schedule
The best time to schedule a spring tune-up is March or early April — before the summer rush. Once temperatures hit 90+ consistently, every HVAC company in Texas is booked out. Getting ahead of the rush means you get your preferred time slot and any needed repairs can be completed before the heat sets in.
The Cost of Skipping Maintenance
An AC system that runs all summer without maintenance uses 10-25% more energy than a well-maintained system. On a $200/month electric bill, that's $20-50/month wasted. Over a Texas summer (May through September), that's $100-250 in unnecessary energy costs — roughly the price of a professional tune-up.
More importantly, most AC breakdowns happen because a small issue (dirty coil, weak capacitor, clogged drain) went unaddressed until the system was running at full capacity in July. A tune-up catches these before they become emergency calls.
Book Your Spring Tune-Up
Kimco Plumbing & Air serves 44 Central Texas communities across 15 counties. Our spring AC tune-ups include a full system inspection, coil cleaning, refrigerant check, and electrical testing — all at flat-rate pricing. No upselling, no surprise charges. Schedule now before the summer rush hits. Call (737) 260-7255.