Common AC problems in Lake Mary, Florida
Eight symptoms that cover most residential air-conditioning faults in Lake Mary and Heathrow: no cooling, running but not cooling, not turning on, leaking water, a frozen coil, strange noises, short cycling and a sudden jump in the electric bill. Each page ranks the likely causes, says what is safe to check yourself, and gives a researched Central Florida repair cost.
Pick the symptom
- AC not cooling
- AC running but not cooling
- AC not turning on
- AC leaking water
- Frozen AC coil
- AC making noise
- AC short cycling
- High electric bill
Every page follows the same shape: the symptom, the likely causes ranked by how often they turn out to be the answer, what is safe to check yourself, why it shows up here specifically, and a researched repair cost with its source named.
The two things that decide most of these in Lake Mary
Two questions answer more Lake Mary faults than any diagnostic tool: how old is the house, and does it have a pool? A pool house here usually means a wide sliding-glass span onto the lanai and a system carrying a heavier latent load, which is why short cycling and a high electric bill get a Lake Mary-specific angle below rather than generic national advice.
Seminole County Property Appraiser CAMA extract (parcel file dated 5 September 2026), tax district M1 — City of Lake Mary — improved residential parcels only.
If it is any of these, stop reading
A burning or hot-electrical smell. Smoke or scorching at the outdoor disconnect. A breaker that trips again immediately after being reset once. Water running into a ceiling from an attic air handler — common in the 1988–1996 stock that makes up the middle of this market.
Sources for this page
Researched 6 September 2026. Fees, rebate amounts and code minimums change — check the issuing authority before you rely on a figure.