AC Repair
Why Is My AC Freezing Up?
2026-08-24 5 min readBy Launch Air & Heating
Ice on your AC in 90-degree Florida weather? Here's why it happens and how to prevent it.
Why Your AC Freezes Up
A frozen AC seems impossible in Florida heat, but it's common. Ice forms when something disrupts normal airflow or refrigerant balance.
Common causes
- Dirty air filter restricting airflow
- Low refrigerant from a leak
- Dirty evaporator coil
- Blocked return vents
- Failing blower motor
What to do
- Turn the system to OFF (fan ON to help thaw)
- Replace the air filter
- Let the ice melt completely
- Call a professional if it refreshes
Running a frozen system can burn out the compressor — an expensive repair.