Frozen Evaporator Coils
The #1 hidden cause of “warm air” complaints in Arlington & DFW every summer. Here’s why it happens and exactly what to do.
The #1 hidden cause of “warm air” complaints in Arlington & DFW every summer. Here’s why it happens and exactly what to do.
Warning: A frozen evaporator coil is an emergency. Running your AC like this can destroy the compressor and cost you thousands.
The evaporator coil is the cold “indoor” part of your AC system (usually inside the air handler or furnace). It absorbs heat from your home’s air. When it freezes, cold air stops flowing and your system blows warm or no air at all.
Restricted airflow makes the coil too cold and moisture in the air freezes on it.
Fix: Replace the filter immediately.
Low pressure drops the coil temperature below freezing point.
Fix: Professional leak repair + proper recharge (never “just add Freon”).
Closed vents, dirty ducts, or outdoor condenser blockage starves the system of air.
If the indoor fan isn’t moving enough air across the coil, ice forms fast.
Running the AC at 65°F when it’s 100°F outside forces the coil to over-cool.
Still frozen after thawing? Call us immediately.
A frozen coil left running can burn out your compressor — a $1,500–$3,000 repair. We fix frozen coils same-day in Arlington, Mansfield, Kennedale & all DFW.
Our Seasonal Maintenance Plan includes coil cleaning, refrigerant level check, airflow test, and filter replacement — the exact steps that stop this problem before it starts.
No. Never pour water on a frozen coil — it can crack the fins or damage the unit.
Every 30 days during summer. We recommend 1-inch pleated filters rated MERV 8–11.
Usually not if caused by a dirty filter or lack of maintenance.
Most repairs are completed in 1–2 hours on the same day.
Our Arlington team is usually at your door in under 60 minutes.