Air Conditioning Repair in Orlando, FL: Symptoms, Causes and What a Visit Involves

In Orlando an air conditioner works for most of the year. The National Weather Service counts a normal year at Orlando International Airport as having about 110 days at 90 degrees or hotter, and 2025 had 125 of them. When a system stops in that weather the house warms quickly and the air indoors turns damp, so the first question is usually how to get it running again.

This page is about air conditioning repair in Orlando: the checks that are safe to make yourself, what each symptom can mean, why systems here fail the way they do, what to expect from a repair visit, how the federal refrigerant rules bear on an older system, when a permit comes into it, and how to weigh a repair against a replacement.

Air Conditioning Repair Orlando is a referral service, and it is not a contractor. When you call, we connect you with an independent contractor who repairs air conditioning in Orlando. That contractor, not this site, finds the fault, prices the repair and does the work.

What you can safely rule out yourself

None of these needs a tool or a panel taken off. If one of them brings the system back, you have saved a visit. If none does, you can tell the contractor what you already ruled out.

1. The thermostat. Confirm it is set to cool and set below the room temperature. If it runs on batteries, change them. Look at the fan setting too: the manufacturer Carrier points out that a fan left on, and not on auto, keeps blowing between cooling cycles and can send warm air out of the vents.
2. The breakers. Look in the electrical panel for a tripped breaker, and at the disconnect box beside the outdoor unit. Reset a tripped breaker once. Carrier’s advice is that if it trips again straight away you should not try a second time, because that points to an electrical fault. Leave it switched off, and mention it when you call.
3. The filter. A clogged filter restricts the air reaching the indoor coil. Lennox, another manufacturer, explains that the coil then gets too cold and the moisture on it freezes. Change the filter and let any ice melt before you judge the result.
4. The drain pan and the overflow switch. Look under or beside the air handler. Water standing in the pan points to a blocked condensate drain. Many systems, though not all, have a switch that shuts everything down when the water rises, so a system that stopped on a humid afternoon with water in its pan may well have shut itself off on purpose.
5. The outdoor unit. Clear leaves, palm fronds and grass clippings from around it. Listen as well: Carrier describes a hum from the outdoor unit as the sound of a motor trying to start without enough help from its capacitor, and that is worth describing when you call.

Symptoms and their published causes

A symptom narrows the search without settling it. The causes in this table are the ones that equipment manufacturers, ENERGY STAR and University of Florida extension publish for each symptom. Only measurements at the unit show which one applies to your system.

What you notice	Causes the published guidance lists	What to tell or ask the contractor
It runs, but the air from the vents is not cold	A clogged filter, a low refrigerant charge, a dirty outdoor coil, a weak capacitor that cannot bring the compressor up to speed, or a thermostat fan set to on	Whether the outdoor fan is turning, and when the filter was last changed
Nothing runs at all	A tripped breaker or a blown fuse, a thermostat with dead batteries or the wrong setting, an overflow switch tripped by a blocked drain, or a failed capacitor or contactor	Which of the checks above you made and what you found
Water under the air handler or a stain on the ceiling below it	A clogged condensate drain line, a drain pan that has corroded or cracked, or a frozen coil thawing	Ask for the line to be cleared and for the pan and any overflow switch to be checked
The indoor coil or its refrigerant pipe has iced over	Restricted airflow from a dirty filter or blocked vents, a blower problem, or a low refrigerant charge	Switch cooling off and let it thaw. Ask for the airflow to be checked as well as the charge
It starts and stops every few minutes	A dirty filter, a low refrigerant charge, a faulty thermostat, a failing capacitor or relay, or equipment too large for the house	How long it runs each time and how long it rests
The temperature is right but the house feels sticky	Run times too short to remove moisture, often from oversized equipment. Duct leaks drawing in unconditioned air. A fan left running between cooling cycles	Ask for the indoor humidity to be measured, not only the temperature
The breaker trips when the outdoor unit starts	An electrical fault. Carrier says frequent tripping suggests the compressor is overheating or drawing too much power	Leave the breaker off and say that it tripped twice
A hum outside and the fan is not turning	A motor trying to start without enough torque from its capacitor	Switch the system off at the thermostat and describe the sound
Some rooms never cool	Duct problems such as leaks or kinked flexible duct, or equipment that is not working properly	Which rooms, and whether it has always been so

Why air conditioners fail the way they do in Orlando

Orlando has a humid subtropical climate, and the weather service’s figures show what that asks of a cooling system. The 1991 to 2020 normals for Orlando International Airport give 3,452 cooling degree days a year against 525 heating degree days, so cooling demand is more than six times heating demand. The normal high is 92 degrees on every single day of July, and the normal July low is 73.2, which gives the equipment little rest overnight.

Long run hours

Electrical parts wear with heat and use. Carrier puts the life of a capacitor at roughly 10 to 20 years and says heat exposure and usage can shorten it, and Orlando supplies plenty of both. The weather service’s climate report for Orlando International Airport put July 2026 at an average of 85.2 degrees, 2.6 above normal, with 30 days at 90 or hotter. On the weather service’s record sheet for Orlando that made it, at the time, the joint second warmest July on record, level with 2016 and behind July 2024 at 85.5, and the 99 degrees reached on July 25, 2026 set a record high for that date.

Water, every day of the wet season

June through September normally brings 29.57 inches of rain to Orlando, about 57 percent of the year’s 51.45 inches, and the weather service puts the median start of the wet season at May 27. An air conditioner in that air is a dehumidifier as much as a cooler. University of Florida extension guidance gives the example of a system with a sensible heat ratio of 0.7, where 30 percent of the load is removing humidity.

All of that moisture leaves through one small condensate line. Carrier explains that dust and debris build up in the pipe over a cooling season and that algae and mold add to the clog, and it advises checking drain lines more often in a humid environment. That is why so many repair calls here involve water, or a system that has shut itself off. The EPA’s mold guidance for homes says to keep air conditioning drip pans clean and the drain lines unobstructed and flowing properly.

Dirt on the indoor coil

The same University of Florida guidance calls dirt buildup on the indoor coil the single most common cause of poor efficiency, and notes that the coil acts as a magnet for dust because it is wet all through the cooling season. ENERGY STAR adds that dirty coils make a system run longer to do the same cooling.

Afternoon storms and interrupted power

The weather service’s annual summary for Orlando International Airport recorded thunderstorms on 119 days in 2025, and its report for July 2026 counted them on 19 days of that month. Storms bring outages. Duke Energy’s storm advice is to turn off nonessential equipment that may start automatically when power is restored, to avoid overloading circuits, and a central air conditioner is equipment of exactly that kind.

What to expect from a repair visit

1. Before the visit. Have ready the symptom, how long it has gone on, the age of the system if you know it, and anything you have already checked. Ask the contractor whether there is a fee to come out and diagnose.
2. The diagnosis. A diagnosis should rest on measurements. ENERGY STAR’s checklist for a contractor’s check-up gives an idea of what that means: voltage and current at the motors, the refrigerant level, airflow, the controls and the condensate drain.
3. The price, before the work. Ask for the cause and the price in writing before anything is replaced, with the part named. Florida law requires a contractor’s license number to appear on every proposal and contract, so it should be on that paper.
4. The repair. Ask whether the part is on the van or has to be ordered, and what the plan is for the house in the meantime if it has to be ordered.
5. The test. Ask for the system to be run and checked again after the repair, including water moving freely down the drain.
6. The invoice. It should list the parts fitted and, if refrigerant was added, which type and how much.

Questions worth asking on the visit

• Is there a diagnostic fee, and does it come off the price if I go ahead with the repair?
• What caused the part to fail, and is anything else about to?
• What warranty covers the part, and what covers the labor? Ask for both in writing.
• If refrigerant was low, where is the leak?
• Whose license is the work done under? Our page on choosing an HVAC company in Orlando shows how to look that license up with the state in a few minutes.

Refrigerant: what the federal rules mean for a repair

Which refrigerant a system uses shapes what a repair costs and whether it makes sense. The rules come from the Environmental Protection Agency. They were amended by a final rule published in the Federal Register on May 26, 2026, so an older summary may describe a deadline that no longer applies.

Older systems that use R-22

The EPA says that as of January 1, 2020 no new R-22 is made in or imported into the United States. It also says plainly that it does not require homeowners to replace existing equipment, and that R-22 which has been recovered and reclaimed, along with R-22 produced before 2020, will help meet the needs of owners of existing systems. The practical effect is a supply that can only shrink. A repair that means refilling the whole charge is the point at which many owners compare it with a new system.

Systems that use R-410A

Systems that replaced R-22 equipment mostly use R-410A, which the EPA describes as the most common alternative in new air conditioning systems. The EPA’s Technology Transitions rules now set a global warming potential limit of 700 for new residential air conditioning and heat pump systems, and R-410A is listed at 2,088. That limit is about new systems. The agency’s table states that components used to repair existing systems are not subject to the restrictions, and its guidance says owners can continue to repair existing systems, including replacing a major component like a condensing unit or compressor.

The agency does add a caution: the availability of these refrigerants and components may lessen over time. Its phasedown schedule caps national production and consumption at 60 percent of the baseline for 2024 through 2028 and at 30 percent for 2029 through 2033. An R-410A system can be repaired under the rules as they stand. It is reasonable to ask the contractor what a recharge costs, because the supply behind that price is being reduced.

Newer systems

The EPA names R-454B and R-32 among the substitutes that manufacturers have moved to, and its reference table lists them at 465 and 675, both under the limit. The refrigerant named on the unit’s data plate is the one that belongs in it.

Who may handle it

EPA rules under Section 608 of the Clean Air Act require anyone who attaches gauges, adds refrigerant or removes it to be a certified technician, and they prohibit intentionally venting refrigerant during service. The certification does not expire. An apprentice is exempt only while closely and continually supervised by a certified technician. It is fair to ask the technician to show the certification. The EPA explains the requirement on its Section 608 page.

Does a repair need a permit?

Replacing a part usually does not. The Florida Building Code exempts from a mechanical permit the replacement of any part that does not alter the equipment’s approval or make it unsafe, and a new capacitor, contactor or fan motor is a part of that kind. Portable cooling units are exempt as well. Where a job goes further than swapping a part, the building department for the address decides.

Replacing the equipment itself is different. Orange County’s permit guidance says a mechanical permit is needed for all permanently installed air conditioning and heating equipment, and the City of Orlando’s mechanical permit application lists repair and replacement as a type of work. Florida’s statutes do exempt some small jobs on single-family homes, those valued at less than $7,500, from a building permit. That exemption, in section 553.79(1)(g), does not help here: it states that it does not apply to any electrical, plumbing, structural, mechanical or gas work. Our page on AC installation in Orlando explains which office issues the permit for your address and what the inspection covers.

Repair or replace

ENERGY STAR, the federal efficiency program, lists signs that replacement deserves a look. Among them: the air conditioner or heat pump is more than 10 years old, it needs frequent repairs while the bills go up, the home has humidity problems, or the system is noisy. None of them is a rule. A ten year old system with a failed capacitor wants a capacitor.

The questions that settle it are narrower. Which part failed: one that is routinely replaced, or the compressor or coil? Which refrigerant is in it? Has the house felt damp for a long while? Are the ducts in fair condition? A contractor who has measured the system can answer all four, and you can ask for the repair price and a replacement price side by side.

National repair cost figures

This site sets no prices and quotes none. The figures below are the ones HomeAdvisor publishes in its AC repair cost guide, which it dates June 17, 2026. They are HomeAdvisor’s figures for the country as a whole. They are not Orlando prices, and only a contractor who has examined your system can tell you what your repair will cost.

Repair	HomeAdvisor’s published national figure
A typical AC repair	$172 to $664, with most homeowners paying $417
Capacitor replacement	$120 to $475
Refrigerant recharge	$100 to $600
Blower motor replacement	$250 to $800
Evaporator coil	$600 to $2,000, about $1,000 on average
Compressor replacement	$1,200, or up to $2,800

When it cannot wait

For some households a failed air conditioner is a health matter. The Centers for Disease Control and Prevention lists people 65 and older, infants and young children, pregnant women, and people with heart disease or asthma among those at greater risk in heat. Census Bureau figures put about one in nine Orlando residents at 65 or over.

• Say it when you call. Tell us, and tell the contractor, if someone in the home is elderly, very young or unwell. How soon a visit can happen depends on the contractor and the day, and nobody can promise it on a contractor’s behalf, so ask.
• Do not rely on fans alone. The CDC advises using fans only while the indoor temperature is below 90 degrees. Above that, it says, a fan can increase body temperature.
• Find cooled space. The CDC’s heat page explains how to find a place with air conditioning, through the community information line it names or through the local health department or emergency management agency.
• Slow the heat gain. University of Florida extension suggests putting off heat-generating chores such as dishwashing until the evening and keeping the house closed tight during the day.
• If the coil is iced. Lennox’s guidance is to shut the cooling off and set the fan to on, which thaws the ice faster.
• If water is leaking. Switch the system off so that it stops making condensate, and dry what got wet. The EPA’s guidance is that wet materials dried within 24 to 48 hours will in most cases not grow mold.

After a storm or a flood

The Atlantic hurricane season runs from June 1 to November 30, with its peak on September 10. Orlando is inland, and its storm damage is often water. During Hurricane Ian, from September 27 to 30, 2022, Orlando International Airport measured 13.20 inches of rain, and the weather service’s report describes widespread and historic flooding across Orange County.

• If the system was flooded, leave it off. The CDC warns that turning on a flooded, mold-contaminated HVAC system will spread mold through the house, and says to have the system checked and cleaned by a professional experienced in mold cleanup before it is used.
• Stay away from wet electrical equipment. Ready.gov’s hurricane guidance is not to touch electrical equipment that is wet or while you are standing in water.
• Expect an inspection before power returns to a flooded home. Duke Energy says it cannot reconnect a flooded home until a licensed electrician has inspected the electrical system. OUC says it tags flooded areas, and that where the connection at the house is damaged the customer must have an electrician repair it and have a city or county inspection before power is restored.
• After wind, look before you start it. If the outdoor unit has shifted on its pad, the copper line is kinked or there is debris in the fan, leave the system off and say so when you call.
• Check who you hire. In a hurricane-season reminder that is still on its website, the state licensing department urges residents to verify a license before hiring or signing, and notes that a contractor licensed in another state still needs a Florida license. During a state of emergency declared by the Governor, contracting without a license is a third degree felony in Florida.

Getting a system ready before a storm is a maintenance job, and it is covered on our page about AC service in Orlando.

If you rent

The Census Bureau’s figures for 2020 to 2024 give Orlando an owner-occupied housing rate of 39.5 percent, so most households in the city rent. Florida’s landlord and tenant law lists what the landlord of a dwelling other than a single-family home or duplex must provide unless otherwise agreed in writing: among other things, functioning facilities for heat during winter, running water and hot water. The section does not mention air conditioning. It does require a landlord to comply with applicable building, housing and health codes. Whether the landlord must repair the air conditioning therefore comes down to the lease and to any code that applies, so read the lease first.

Report the failure to the landlord or the manager in writing, with the date and what the system is doing. Do not hire a repair on equipment you do not own unless the owner has agreed to it. If you own a rental, the contractor will need your approval and a way in.

Where in Orlando we connect callers

The neighborhoods around downtown hold some of the oldest houses in the city. The City’s account of its historic districts dates most of the homes in Colonialtown South to the land boom of the 1920s, describes bungalows of that decade in Lake Cherokee and farmhouses from 1890 to 1911 in Lake Eola Heights, and College Park filled in during the same boom. If your house is one of these, tell the contractor where the air handler and the drain line are. In an older house they can be in an attic, a closet or a crawl space, and that decides how the visit goes.

Other parts of the city are far newer: Baldwin Park, whose first buildings went up in 2003 on the old Naval Training Center, and Lake Nona, the planned community southeast of the airport. Calls also come from Thornton Park, Delaney Park, Wadeview Park, MetroWest, Millenia, Rosemont, Audubon Park, Parramore, Washington Shores, Richmond Heights, Vista East and Storey Park.

An Orlando mailing address is not always inside the city. Winter Park is a separate city immediately north of downtown, Kissimmee is the county seat of Osceola County, and Pine Hills and Conway are unincorporated communities in Orange County. None of that changes a repair. It does decide which office issues a permit if the equipment is replaced.

Your questions, answered