In Broward, an AC system never gets an off-season — which means the same handful of failures show up again and again, year-round. The good news is they are predictable. Once you know what the early symptoms point to, you can act before a $200 part becomes a $2,000 emergency. Here is the field guide to the problems we see most.
Weak airflow or warm air from the vents
The first thing to rule out is the cheapest: a filter so clogged it is choking the system. After that, weak airflow usually points to a dirty evaporator coil, a failing blower motor, or duct leakage dumping cold air into your attic instead of your living room. Warm air specifically — cool became lukewarm — is more often a refrigerant problem or a frozen coil, both of which need a technician.
The system that freezes up
A coil caked in ice almost always traces back to one of two things: restricted airflow (dirty filter or coil) or low refrigerant from a leak. The fix is to turn the system to fan-only to thaw it, then address the cause — not to keep running it, which can damage the compressor. Recurring freeze-ups are a classic sign of a slow refrigerant leak that needs to be found and sealed, not just topped off.
Short-cycling — on and off every few minutes
When a system kicks on, runs briefly, shuts off, and repeats, it is short-cycling. Common causes are an oversized unit, a failing capacitor, a refrigerant problem, or a thermostat placed in a bad spot. Short-cycling is hard on the compressor and spikes your bill, so it is worth diagnosing quickly rather than living with.
Water where it should not be
A puddle near the air handler is usually a clogged condensate drain line — the most common single call we get in Broward, because humidity feeds algae growth in the line. A working float safety switch shuts the system off before the water reaches your ceiling; if yours kept running until it leaked, that switch may be missing or failed. A drain flush and a float switch are cheap insurance against drywall damage.
When to call versus when to look first
You can safely check the filter, clear obvious debris from around the outdoor unit, confirm the thermostat is set and powered, and reset a tripped breaker once. If the problem involves refrigerant, electrical components, ice, or standing water that returns, that is the line where DIY stops paying off and a diagnostic visit saves money.
- Most year-round AC failures fall into five predictable buckets.
- Warm air, ice, and recurring freeze-ups often mean a refrigerant leak — not just low charge.
- A puddle by the air handler is almost always a clogged drain line; a float switch prevents ceiling damage.
- Filter, debris, thermostat, and one breaker reset are safe to check yourself — refrigerant and electrical are not.
Cooling problem you would rather not guess at?
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