It sounds backwards: the hottest week of the year, and your air conditioner is covered in ice. Yet frozen coils are one of the most common midsummer failures we see across Jonesboro — and they always mean something upstream has gone wrong.
Why Coils Freeze in NEA Humidity
Your evaporator coil gets cold by design. Normally, warm humid air flowing across it keeps it just above freezing while it pulls heat and moisture from your home. Two things break that balance:
- Restricted airflow — a clogged filter, crushed duct, or failing blower means not enough warm air reaches the coil, and it drops below freezing.
- Low refrigerant — a leak lowers pressure inside the coil, and physics does the rest. The coil ices over, cooling stops, and the compressor keeps running against a block of ice.
What to Do Right Now
- Turn the system off at the thermostat — running it frozen can kill the compressor.
- Switch the fan to ON to speed up the thaw (expect water as it melts).
- Check and replace your filter.
- If it refreezes within a day, you likely have a refrigerant leak — that’s a service call.
Don’t chip the ice. Coils and fins damage easily. Let it melt, then let us find the root cause — a recharge without fixing the leak just buys you a few weeks.
Low refrigerant is never “used up” — it escaped somewhere. We find the leak, fix it, and charge the system to spec so it stays fixed.