It hit 85°F in Spanish Fort today. If you’re like most homeowners on the Eastern Shore, you probably flipped your thermostat to “cool” for the first time in months. Maybe it fired right up. Maybe it made a noise you don’t remember hearing last October. Maybe nothing happened at all.
Here’s the thing — your air conditioner has been sitting dormant for four or five months. That’s a long time for any mechanical system to sit unused. And in Baldwin County’s humid, salt-heavy air, a lot can happen to an AC unit between November and March. Let’s walk through what actually goes wrong and what you can do about it before you’re stuck sweating at 2 AM.
Capacitors Weaken When They Sit Idle
This is the number one reason ACs fail on the first hot day. Your compressor and fan motor each have a capacitor — a small cylindrical component that stores electrical charge and gives the motor a boost to start up. Think of it like a battery that kicks the engine over.
When capacitors sit unused for months, they can lose charge or degrade internally. The electrolytic fluid inside slowly breaks down, especially in heat and humidity. Spanish Fort’s proximity to Mobile Bay means your outdoor unit is exposed to moisture and salt air year-round, even when it’s off.
What you’ll notice: The AC turns on but the fan spins slowly, or the unit hums loudly but doesn’t actually start cooling. Sometimes it’ll trip the breaker.
What to do: If your unit is humming but not starting, shut it off at the thermostat and call for AC repair. Running it with a bad capacitor can burn out the compressor — and that’s a $1,500+ repair versus a $150 capacitor swap.
Refrigerant Leaks Get Worse Over Winter
Here’s something most Spanish Fort homeowners don’t realize: refrigerant leaks are slow. A tiny crack in a coil or a loose fitting might lose a few ounces per month. Over summer, your system compensates — it works harder, runs longer, but still cools the house. You might not even notice.
But those five months of winter? That’s five months of slow leaking with nobody checking. By the time you fire up the AC in March, you could be a full pound or more low on refrigerant. And unlike a car that burns gas, your AC is a sealed system — it should never lose refrigerant unless something’s wrong.
Signs you’re low: The AC runs constantly but never reaches your set temperature. The supply vents blow air that’s cool but not cold. You might see ice forming on the copper lines outside — counterintuitive, but low refrigerant actually causes freezing.
The honest truth: If someone tells you they just need to “top off your Freon,” ask them where it’s leaking from. Adding refrigerant without fixing the leak is like putting air in a tire with a nail in it. A good tech will find and fix the leak first. That’s what we do at Aim — we don’t sell band-aid fixes.
Critters Love Your Outdoor Unit
Your condenser unit is basically a furnished apartment for Baldwin County wildlife from November through February. Lizards, mice, wasps, even snakes — they all find their way into outdoor HVAC equipment during the off-season. It’s warm, sheltered, and nobody’s bothering them.
Mice are the worst offenders in Spanish Fort neighborhoods like Timber Creek, The Willows, and Stonebridge. They chew through wiring insulation, build nests that block airflow, and leave droppings that corrode electrical contacts. Wasps build mud dauber nests inside the unit that can block the drain pan.
Before you turn on your AC for the first time: Walk outside and look at the unit. Remove any leaves, pine straw, or debris within 2 feet of the condenser. Look for obvious nests or droppings. Listen for buzzing before you get too close — wasps in a condenser are no joke.
If you see chewed wires or heavy debris inside the unit, don’t power it on. That’s when you need a professional HVAC service in Spanish Fort to inspect before the first run.
Your Drain Line Is Probably Clogged
This one catches people off guard every single spring. Your AC produces condensation — a lot of it. In Baldwin County’s humidity, a typical system generates 5 to 20 gallons of water per day during peak summer. All that water drains through a PVC pipe, usually to the outside of your house.
Over winter, that drain line sits full of stagnant water. Algae, mold, and biofilm grow inside the pipe. When your AC kicks on for the first time and starts producing condensation again, that water backs up because the line is partially blocked.
What happens next: Water overflows the drain pan inside your air handler. If you’re lucky, you notice a puddle. If you’re not lucky, it drains into your ceiling, drywall, or insulation before you catch it. We see this every single March and April in Spanish Fort.
DIY prevention: Find your drain line outside (it’s usually a white PVC pipe near the foundation). Pour a cup of white vinegar down the access port on the indoor unit — it’s typically a T-shaped fitting near the air handler. Do this before your first AC use of the season and monthly during summer. It kills the algae before it clogs.
Your Filter Is Five Months Old (At Least)
Be honest — did you change your filter when you turned off the AC last fall? Most people didn’t. That means you’ve got a filter that’s been collecting dust since October, and now you’re about to push air through it for 12+ hours a day.
A dirty filter doesn’t just reduce airflow and make your house harder to cool. It makes your system work harder, which means higher electric bills and more wear on the compressor. In extreme cases, restricted airflow causes the evaporator coil to freeze, which leads to water damage when it thaws.
The fix: Change your filter right now. Today. Before you run the AC again. For most Spanish Fort homes, a standard 1-inch MERV 8 filter is fine — you don’t need the expensive MERV 13 unless someone in the house has serious allergies. Change it every 30-60 days during cooling season, more often if you have pets.
Want someone to handle all of this for you? Our maintenance plan includes two tune-ups per year — one before summer, one before winter — plus priority scheduling and no diagnostic fees. It’s the easiest way to avoid the “first hot day surprise.”
Frequently Asked Questions
How long should I wait after turning on my AC for the first time?
Give it 15-20 minutes to start cooling. If the air from your vents isn’t noticeably cold after 30 minutes — not just cool, but cold — something’s wrong. Shut it off and call a tech before you stress the compressor.
Should I run my AC during winter to keep it working?
Not in heating mode, but running it in cool mode for 10-15 minutes once a month during winter keeps the compressor lubricated and the capacitors charged. Pick a day that’s above 60°F to avoid damaging the system.
What’s the most expensive thing that can go wrong on the first run?
Compressor failure. If a weak capacitor or electrical issue forces the compressor to strain on startup, it can burn out. Replacing a compressor runs $1,500-$3,000 depending on the unit. That’s why we always recommend a spring tune-up before the first hot day.
If you’ve turned on your AC today and something doesn’t seem right — weird noises, warm air, water dripping where it shouldn’t be — give us a call at (251) 751-9908. We’ll have someone out to your Spanish Fort home within 2 hours. No diagnostic fee, no pressure. Just an honest answer about what’s going on with your system.