Jacksonville, FL
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AC Maintenance · Northeast Florida

Skipped your AC tune-up?
A clogged drain or weak part tends to fail in peak heat.

A tune-up should be a measured checkup. We clean what needs cleaning, test the parts that wear out, and show you the readings so you know where your system stands.

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CMC1251311State-licensed mechanical contractor
EPA 608Universal certified
Written quotesBefore any work starts

At a glance

AC maintenance at a glance

Signs it’s dueIt has been a year or more, the system runs longer than it used to, the drain has backed up before, or bills crept up.
Usual troubleAlgae in the drain line, dirty coils, a weakening capacitor or a clogged filter.
Typical visitCleaning, electrical and refrigerant checks, a drain flush and a written quote for anything that needs repair.
When to scheduleSpring, before the long cooling season. Add a fall visit if you have a heat pump.

Why this happens in Florida

Humidity, algae and long run hours

Drain lines are the classic Florida problem. Your AC pulls a lot of water out of humid air, and the warm, dark drain line is a good place for algae and slime to grow.

When the line clogs, water backs up into the pan. If a float switch is installed, it shuts the system off. If not, water can overflow into a ceiling or closet.

Coils load up too. A dirty indoor coil can’t absorb heat or pull moisture as well, and outdoor coils collect pollen, grass and dirt. Near the coast, salt air adds corrosion.

Florida systems also log more hours, so capacitors and contactors wear out sooner. Catching a weak capacitor at a tune-up beats having it fail in August.

What we check

What a tune-up covers, and the readings we show

A tune-up is more than rinsing off the outdoor unit. Each item below is tested, cleaned or adjusted, and you see the readings.

  • Capacitor readings in microfarads against the rating
  • Compressor and fan motor amp draw against the nameplate
  • Refrigerant pressures, superheat and subcooling
  • Temperature split across the indoor coil, and static pressure
  • Contactor, wiring and disconnect, with connections tightened
  • Condensate drain line flushed, pan inspected and float switch tested
  • Indoor and outdoor coils inspected, and cleaned as needed
  • Filter, blower and thermostat operation

We tell you what we found and what can wait. Want visits on a regular schedule? See the maintenance plan.

Between visits

Two things you can do yourself

Filters

Check the filter monthly and change it when it looks gray or clogged. A clogged filter cuts airflow, raises run time and can freeze the indoor coil.

The outdoor unit

Keep plants, mulch and grass clippings a couple of feet back so the unit can move air freely. Don’t pressure-wash the coil, because the fins bend easily and block airflow.

How it works

How a maintenance visit runs

1

Book the visit

Call (904) 467-1100 or book online, Monday through Saturday, 8 AM to 8 PM.

2

Tune-up with readings

Mr Gary works through the checklist and shows you the numbers, including any that are drifting out of range.

3

Written quote for repairs

If a repair is needed, you get a written quote before any work. For a breakdown call, the $129 diagnostic fee is waived when you go ahead with a recommended repair over $250.

Straight answers

Common questions

How often should I get AC maintenance in Florida?

At least once a year, ideally in spring before the heavy cooling season. If you have a heat pump, a fall visit checks the heating side too.

What makes my AC drain line clog?

Your AC removes a lot of water from humid air, and algae and slime grow in the warm, wet drain line. Over time that buildup blocks the line and water backs up into the pan.

Can I keep the drain line clear myself?

Many drain lines have an access port where a cup of distilled white vinegar every month or two helps slow algae growth, but check your equipment manual first. If water is already backing up, turn the system off and call.

How often should I change my air filter?

Check it monthly. In Florida’s long cooling season, many 1-inch filters need changing every one to three months, and more often with pets or dust.

Get it measured, get it fixed, get a written price first.

Langston’s Heating & Air Conditioning · Licensed CMC1251311 · Mon–Sat 8 AM–8 PM

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