AC repair
When an air conditioner quits in an Alabama July, the household is not shopping for philosophy — it is hot. But the ten minutes a technician spends measuring instead of guessing is what separates a forty-dollar afternoon from a four-figure one, and it is worth knowing what those ten minutes should contain.
What a real service call covers
The electrical suspects first, because August kills them first: the run capacitor measured against its rating, the contactor checked for pitting, the compressor’s draw read. Then the loop: refrigerant charge measured — never assumed — with a temperature split across the coil to confirm what the gauges say; the outdoor coil inspected for the pollen, grass and cottonwood that blanket it by midsummer; and the condensate line, because in Gulf humidity a clogged drain shuts down more systems than compressors do.
The distinction that matters most is between repairing and refilling. Refrigerant does not get used up — a low system has a leak, and a top-up without a leak search is the same service call sold twice. On older units running phased-out refrigerant, the honest conversation shifts to replacement, because the refill alone can rival the value of the machine holding it.
Repair or replace, in a hundred-day season
The arithmetic runs on hours, not birthdays. A young system with a failed capacitor or fan motor is a repair — weather takes wear parts, and Alabama weather takes them on schedule. A compressor or coil failure on a unit deep into its Alabama hours is a different case: a large repair on equipment whose every other component has the same career behind it, facing another hundred-day season the moment it is fixed.
Either way, what protects you is a written finding: what failed, what was measured, what it costs, and what the technician would do in their own house. A visit that ends in a number without findings is a quote, not a diagnosis — and in a heat wave, when every shop’s phone is ringing, the written finding is also what makes a second opinion possible at all.
Quick answers
- Why did the AC pick the hottest week to die?
- Because heat is load, and load finds the weak part. Capacitors, contactors, marginal charge and matted coils all survive May and fail together in the first real heat wave — it is the most predictable failure date on the Alabama calendar.
- The unit hums but nothing spins — is it dead?
- Very often that is a failed run capacitor: a small, inexpensive part with an August habit. It looks like a dead system and is frequently a twenty-minute repair — which is exactly why it deserves a measured diagnosis before any talk of replacement.
- 1 Thermostat — The season’s odometer — a hundred cooling days pass through it.
- 2 Return and filter — The lungs, and the first thing a retrofit house sized too small.
- 3 Air handler and furnace — Up in the attic, asleep nine months, asked for everything in December.
- 4 Coil and condensate drain — Litres of Gulf moisture a day, all leaving through one narrow line.
- 5 Attic ducts — The coldest air in the house, commuting through the hottest room on the property.
- 6 Outdoor unit — Full sun, full load — where August culls capacitors by the thousand.