Questions
Air Conditioner Repair FAQ
Straight answers about cooling failures, water and ice, humidity, costs and emergency service for Gainesville homeowners.
Cooling Problems
- Why is my AC running but not cooling?
- The blower is circulating air, but heat is not being removed from it. That points to restricted airflow (loaded filter, dirty evaporator coil, weak blower), a refrigerant charge that has dropped from a leak, a condenser coil too dirty to release heat, an outdoor unit that is not running, or a compressor no longer pumping effectively.
- Why is my AC blowing warm air?
- Genuinely warm air usually means the outdoor unit is not operating. Verify the thermostat is set to COOL, then step outside and listen: a silent condenser suggests a tripped breaker, an open disconnect, a failed start capacitor or a burned contactor. Severe refrigerant loss produces the same complaint.
- Why does my AC freeze up?
- The evaporator coil normally runs just above freezing. Anything that reduces heat reaching it — a dirty filter, fouled coil, weak blower, crushed duct, too many closed vents — or low refrigerant pressure inside it drops the surface below 32°F. Ice then blocks airflow and the problem accelerates.
- Why is my AC short cycling?
- Repeated starts and stops usually mean a safety device is tripping: high pressure from a dirty condenser or dead outdoor fan, low pressure from restricted airflow or low charge, or compressor overload. Oversized equipment and a thermostat in a bad location also cause it.
- Why does my AC run constantly and never shut off?
- The system cannot reach the setpoint. Common reasons are lost capacity from low charge or dirty coils, heat gained through ducts in a hot attic, extreme outdoor temperatures with marginal equipment, or a stuck contactor keeping the compressor energized regardless of the thermostat.
- Why is one room hotter than the rest of the house?
- Almost always duct capacity rather than the equipment: a long or undersized branch run, a crushed flex duct, insufficient return air from the room, or cooling absorbed by attic heat before it arrives. Airflow measurement at the register identifies which.
Water, Ice and Airflow
- Why is water leaking from my indoor unit?
- Your system removes gallons of moisture from indoor air daily, and it all leaves through the condensate drain. Water indoors means that path failed: a drain line clogged with biofilm, a failed condensate pump, a rusted-through drain pan, or melt from a frozen coil overwhelming the pan.
- Can I clear a clogged AC drain line myself?
- Sometimes. A wet/dry vacuum applied to the exterior drain termination can pull a soft clog free. What you should not do is force compressed air into the line, disassemble drain plumbing at the air handler, or bypass a float switch to keep the system running.
- What is the float switch and why did my AC stop?
- A float switch is a safety device that opens the low-voltage control circuit when the condensate pan or drain backs up. It stops cooling on purpose to prevent water damage. A system that is silent with a full pan is usually doing exactly what it should.
- Why is my airflow so weak?
- A loaded filter, a blower wheel caked with dust, a failing blower motor or ECM module, crushed or disconnected flex duct, or return air undersized for the equipment. Measuring static pressure separates a duct restriction from an equipment problem.
- Should I close vents in unused rooms?
- Generally no. Closing registers raises static pressure, reduces total airflow, can lower coil temperature toward freezing, and pushes air out through duct leaks instead. Zoning is done with dampers and controls designed for it, not with closed registers.
- How often should I change my air filter in Florida?
- With long run times here, check a one-inch filter monthly and expect to replace it every one to three months; media filters four to five inches thick typically last six to twelve months. Pets, construction dust and pollen season shorten all of those intervals.
Humidity and Comfort
- Why is my house humid even though the AC is running?
- Moisture removal requires run time at a cold coil. Oversized equipment satisfies the thermostat too quickly, excessive airflow keeps the coil too warm to condense much water, a fan left in ON re-evaporates condensate back into the airstream, and return-side duct leaks import humid attic air.
- Should I set my fan to ON or AUTO?
- AUTO for most homes. In ON, the blower keeps running after the compressor stops and drives air across a wet coil, returning that moisture to the house — a real problem in Florida's climate.
- What thermostat setting is best for humid weather?
- A steady, moderate setpoint outperforms aggressive swings. Deep setbacks force long recovery runs on the hottest afternoons, and repeatedly dropping the setpoint several degrees rarely dehumidifies better than letting the system complete normal cycles.
- Does a bigger AC cool better?
- No — oversizing usually worsens comfort. Larger equipment reaches temperature faster, runs shorter cycles, removes less moisture, and leaves you cold and clammy. Correct sizing comes from a load calculation, not from adding a half ton for safety.
Costs, Repair and Replacement
- How much does AC repair cost in Gainesville?
- It depends entirely on what failed. Small electrical parts on accessible equipment sit at the low end; work that opens the sealed refrigerant circuit or replaces a coil or compressor sits far higher. Accessibility, equipment type, parts availability and after-hours timing all shift the number.
- Is there a diagnostic fee?
- Identifying a fault properly takes instruments and time, so diagnosis is normally a billed part of the visit. Ask about it when you request service, along with how it is handled if you approve the repair.
- Should I repair or replace my AC?
- Compare the repair cost against the system's overall condition, its repair history, the refrigerant it uses, parts availability and how well it has controlled both temperature and humidity. Minor electrical and drainage repairs seldom justify replacement; major compressor or coil failures on old equipment often do.
- How long do air conditioners last in Florida?
- Run hours matter more than birthdays. The cooling season here is long, so equipment accumulates wear faster than in mild climates. Maintenance, coastal or corrosive exposure, installation quality and duct design all move the outcome more than the nameplate date.
- Is it worth paying for maintenance?
- Maintenance mainly prevents the failure modes that dominate Florida service calls: plugged condensate drains, dirty coils, weakening capacitors and airflow restrictions. It cannot prevent random component failure, but it addresses the maintenance-related causes of many no-cooling situations.
- Do you offer free estimates?
- Replacement proposals are quoted after evaluating the home, ducts and load. Repair pricing follows diagnosis, because nobody can price a repair honestly without knowing what failed. Call to discuss your situation and what to expect.
Service and Emergencies
- Do you offer 24/7 emergency AC repair?
- Yes — service requests are accepted 24 hours a day, including nights, weekends and holidays. Urgent situations such as total loss of cooling during extreme heat, water intrusion, burning smells or repeated breaker trips receive priority.
- What counts as an AC emergency?
- No cooling during dangerous heat, especially with infants, older adults or anyone with a health condition in the home; any burning or electrical smell; smoke or sparking; a breaker that trips repeatedly; water spreading into ceilings or flooring; and loud grinding or screeching from the equipment.
- What should I do while waiting for a technician?
- Turn the system off if there is any burning smell, smoke or spreading water. Keep blinds closed, use fans for air movement, stay hydrated, and move to a cooler location if indoor temperatures become unsafe. If a coil is frozen, switch to fan-only so it can thaw.
- What information should I have ready when I call?
- What the system is doing and when it started, the thermostat setting and current indoor temperature, whether the outdoor unit is running, whether a breaker tripped, whether there is water or ice, when the filter was last changed, and the approximate age of the equipment.
- Do you work on rental and investment properties?
- Yes. Gainesville has a large rental market, and requests from owners and managers are welcome. It helps to identify at the outset who authorizes repairs and who provides access to the property.
- Do you serve areas outside Gainesville?
- Yes — nearby Alachua County communities including Newberry, Alachua, Archer, Jonesville and Tioga. Travel distance influences scheduling rather than whether service is available.
AC Trouble in Gainesville?
Describe the symptoms and get help scheduling air conditioner repair. Service requests are available 24/7.