What's Actually Included in an AC Tune-Up?

The word "actually" in that question is doing real work. You've probably wondered whether a tune-up is a technician walking around the unit, putting a sticker on it, and handing you an invoice. Sometimes that's exactly what it is.

Here's the test that sorts a real tune-up from that version. A real one produces numbers. Temperature readings, pressures, electrical measurements, taken and written down. If nobody can tell you what the readings were, nobody took any.

That's a standard you can apply without knowing anything about air conditioning. Below, you'll find the measurements a proper tune-up includes, what cleaning and inspection should cover, what you should have in your hand afterward, and the signs that what you got was a visit rather than a service. Berkeys has worked in Southlake since 1975.

Cleaning, inspection, and measurement. The last one is what separates a real tune-up from a visual check.

• Measurements taken: temperature difference across the coil, system pressures, electrical readings, and airflow indicators.
• Cleaning and service: coils, condensate drain, filter, and the area around the outdoor unit.
• Inspection: electrical connections, capacitor condition, blower, and refrigerant charge.
• Documentation: the readings, written down, so this year can be compared to last year.

The simplest test for a homeowner: ask what the readings were. A technician who performed a tune-up can tell you. One who walked around the unit can't. Booking maintenance? Learn about our AC tune-up in Southlake.

Tune-up isn't a defined term with a fixed meaning. Companies decide for themselves what the word covers.

That's why two visits can carry the same name and involve very different work. One technician spends an hour taking readings, cleaning a condenser coil properly, and leaving you a record. Another arrives, looks at the unit, changes a filter, and leaves a sticker behind.

Both of those get called a tune-up. Both produce an invoice. From the homeowner's side, they can look remarkably similar at the time.

So a checklist on a website doesn't settle much. Anyone can publish a list of twenty items. What tells you whether the work happened is whether the visit produced information that didn't exist before.

That's the frame for everything below. Not "what's on the list," but "what should exist afterward that didn't exist before."

None of these can be assessed by looking. Each one requires an instrument, and each one produces a number that either falls where it should or doesn't.

Temperature split. The difference between the air entering the system and the air leaving it. This is the most direct indicator of whether the system is actually cooling the way it should.

System pressures. What the refrigerant circuit is doing under real operating conditions. Pressures outside the expected range point toward specific problems.

Electrical readings. Current draw on the compressor and motors, compared against what the equipment is rated for. A motor pulling more than it should is a motor on its way to failing.

Capacitor condition. Capacitors weaken before they fail outright, and the weakening is measurable. Looking at one tells you very little.

Airflow indicators. Static pressure or an equivalent measure, which reveals whether air is moving through the system the way the design intended.

Ask for these five. A technician who took them will have them.

This is the part most people picture, and it matters. It just isn't the whole job.

The condenser coil. The outdoor coil sheds heat, and it can't do that through a layer of dirt, grass clippings, and cottonwood. Cleaning it properly means more than spraying it from a distance.

The evaporator coil. Indoors, where accessible. This is the coil that collects dust and moisture together, which is a combination that doesn't stay clean.

The condensate drain. Clearing it is routine work that prevents a specific failure, since a blocked drain can shut a system down or overflow a pan.

The filter. Checked, and replaced if it needs it.

Clearance around the outdoor unit. Shrubs, fencing, and stored items that have crept closer since last year.

ENERGY STAR's maintenance guidance covers this ground, including coil cleaning, drain clearing, filter service, and checking electrical connections and refrigerant charge.

Between measuring and cleaning sits a set of checks that catch problems while they're still small.

Electrical connections. Connections loosen over time with heating and cooling cycles. A loose connection generates heat, and heat is how electrical components fail.

Blower components. The blower moves all the air in your system. Its condition affects everything downstream of it.

Refrigerant charge. Checked, not topped up by default. If the charge is low, the system has a leak, and adding refrigerant without finding it means the same conversation next summer.

Thermostat operation. Whether it's reading accurately and controlling the system the way it should.

Safety controls. The switches and limits that shut the system down when something is wrong, which only matter when they work.

Inspection without measurement is the half most people receive. The two belong together, because a visual check catches what's visibly wrong and measurement catches what isn't.

Before the cooling season, not during it.

The reason is practical rather than promotional. A problem found in spring is a scheduling conversation. The same problem found in August is an emergency, and you're waiting in line behind everyone else whose system picked that week to quit.

There's also a diagnostic argument for the shoulder season. A technician working in mild weather can take their time with readings and cleaning. One working through a heat wave is moving between emergency calls.

If you've missed the window and it's already hot, that's not a reason to skip it. It's a reason to schedule it now rather than next spring, since the system is working its hardest exactly when nobody has checked it.

Want a tune-up that leaves you with numbers instead of a sticker? Our Southlake technicians take the measurements and hand you the record. You'll get transparent pricing before any work begins. Call (817) 481-5869 for an AC tune-up in Southlake.

We answer calls 24/7. Want to see what your Southlake neighbors say first? Read our Southlake Google reviews.

Business Address: 1070 S Kimball Ave Suite 131, Southlake, TX 76092