What's in an AC Tune-Up

A real AC tune-up is a thorough multi-point inspection and cleaning — not a five-minute "drive-by" where a tech glances at the unit and hands you a bill. It tests the parts most likely to fail in Valley heat and catches small problems before they leave you without cooling.

What does a real tune-up actually check?

A proper visit covers the whole system, indoors and out. At Angels Cooling, that means:

• Electrical connections — tightened and inspected, since heat and vibration loosen them over time.
• Refrigerant pressures — measured against spec to spot a leak or low charge before the coil freezes.
• Coil cleaning — the outdoor condenser coil gets cleared of Valley dust and grass so it can shed heat.
• Condensate drain — flushed and checked so it doesn't clog, back up, and trip your safety switch on a hot afternoon.
• Capacitor and contactor testing — the two parts most likely to fail in our heat get tested, not just eyeballed.
• Airflow — filter, blower, and temperature split checked so the system moves air the way it should.
• Thermostat — calibrated and confirmed it's cycling the system correctly.
• Safety devices — float switches and limits verified so the system shuts down safely instead of causing water damage.

How is that different from a "drive-by" tune-up?

A cheap drive-by often means a quick rinse of the outdoor unit and a filter swap. That can leave a weak capacitor, a slow refrigerant leak, or a clogging drain completely undetected — exactly the failures that strand you at peak heat. A real tune-up measures and tests, so you get findings, not guesses. See the full AC maintenance checklist for what you can do yourself between visits.

Do I get anything in writing?

Yes. You should leave a tune-up with a written report of what was checked, the readings taken, and anything that's wearing out — so you can plan a repair on your terms instead of during a breakdown. Documented maintenance also helps keep your manufacturer warranty valid, and a clean, tuned system runs more efficiently; maintained systems tend to last longer than neglected ones.

How often should this happen?

Because our cooling season is so long, most Valley homes do best with two visits a year — read how often to service your AC in South Texas. If a tune-up turns up a major problem on an aging system, we'll help you weigh repair or replace honestly. Our VIP Membership bundles two professional tune-ups a year, 15% off all repairs, a $0 service-call fee on approved repairs, and priority scheduling for $125 a year.