Texas Cooling Help
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AC Repair in Seguin, TX

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Step 1 of 3: Equipment

Seven months of the year

AC in Seguin runs from April through October. That's most of the year with the compressor and fan cycling on, day after day, before the system gets much of a break.

Afternoons near 95°F

June, July and August push the afternoon high to around 95°F here. Holding a set temperature against that kind of heat puts real strain on parts that are already worn or marginal.

7 months
April through October, your air conditioner is on duty
95°F
the average summer afternoon it cools against
34 hail events
in ten years, and hail bends the fins on outdoor coils
56 wind events
in ten years, and wind drives debris into outdoor units
Isometric cutaway illustration of a single-story house showing interior rooms, ceiling ductwork, an indoor air handler, and an outdoor condenser unit connected by lines, in gray and white tones on a white background.
Your air conditioner works hardest from May through September.

NOAA nClimDiv, 1991–2020 normals

Texas homes paid 14.94 cents per kilowatthour in 2024.

An AC that's struggling to cool your Seguin home burns through that rate every time it cycles on.

A struggling AC costs more to run here, and every cycle adds to the bill

Power costs 14.94 cents a kWh statewide
Cooling runs April through October
Summer afternoons average 95°F

March is worth a call before the heat sets in. AC in Guadalupe County switches on for the season in April and runs through October, and whatever a system is going to struggle with usually shows up in those first weeks of real load. A capacitor that got weak over the winter, a contactor with some wear on it, a low charge that wasn't quite low enough to notice last fall. All of it tends to surface once the compressor starts cycling on every day instead of sitting idle. Getting a system looked at in March, before that load hits, catches the weak part on your schedule instead of on the first hot afternoon of the season.

Get it diagnosed properly

Your air conditioner works hard here, and that's usually what's behind the problem. Have it diagnosed properly so the fix lasts.

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An outdoor residential air conditioning condenser unit mounted on a concrete pad, surrounded by gravel with a blue sky in the background.

Diagnose it now, not mid-summer

If something's already acting up, that's seven months of daily cycling against a 95-degree afternoon catching up with a part that was already weak. A capacitor or contactor that's been marginal for a while won't hold up under that kind of load. Worth having someone check the actual part rather than just topping off refrigerant or resetting the thermostat, since a fix that skips the real cause tends to fail again before October.

Check these before you call

Look at the outdoor unit and see if the fan is spinning. Check the thermostat is set to cool and set below room temperature, and swap the batteries if the screen is dim or blank. Go to the breaker panel and look for anything tripped, the outdoor unit and the indoor air handler each have their own. Pull the filter and hold it up to light. If you can't see through it, that alone can cause a lot of what feels like a bigger problem.

What these checks rule out

A tripped breaker or a dead thermostat battery looks exactly like a failed system from where you're standing. A clogged filter starves airflow across the indoor coil, which can ice it over or push the system into short cycling, so clearing it sometimes fixes the problem outright. If the fan's running, the breaker's fine and the filter's clean and it's still not cooling, that points to something inside the system itself, worth having a tech look at rather than guessing further.

Overhead view of an air conditioning condenser unit on a concrete pad next to a house with asphalt shingle roofing and vinyl siding.

A new air conditioner would cut about $80 a year off cooling for a typical Guadalupe County home.

  • A new one at the federal minimum, 14.3 SEER2$560 a year
  • An older air conditioner$640 a year

Estimates for a typical Guadalupe County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Texas fuel prices and NOAA climate normals. Your home will differ.

Repair makes sense when a part like a capacitor or contactor has failed.

Replacement makes sense when the compressor has failed or the system uses R-22 refrigerant, which is no longer made.

A diagnostic starts outside at the condenser, checking that the compressor is running and the fan is turning the way it should, then moves to the refrigerant lines and the electrical connections feeding the unit. Gauges go on to check the charge, since too little or too much refrigerant both cause poor cooling in different ways. Inside, the tech checks the coil for ice or buildup and looks at airflow across it, because a coil that's starved for air will freeze up and stop cooling no matter what the compressor is doing. Capacitors and contactors get tested under load, not just looked at, since a weak capacitor can still look fine sitting still. The goal is to find which part is actually failing rather than replacing parts that seem like good guesses, so the fix holds instead of leaving the same weak part to fail again.