Why Your AC Freezes Up in Wichita Falls (Even When It's 105° Outside)

It confuses every homeowner the first time: the hottest week of the year, the AC running nonstop, the house warming up — and outside, the copper lines are wrapped in ice. Your system cools by moving refrigerant through an indoor coil that depends on steady warm airflow across it. Starve the airflow or the refrigerant, and coil temperature drops below freezing. Any humidity in your home then ices the coil solid within hours.

The Five Causes We Find Most

• A filthy filter: the number-one cause by far — restricted airflow freezes the coil
• Low refrigerant: a leak drops system pressure, and low pressure means a colder coil
• Blocked returns or closed vents: furniture over grilles or closed rooms starve the system
• A failing blower motor: weak airflow lets ice build even with a clean filter
• A dirty indoor coil: years of dust insulating the coil surface

What To Do When You See Ice

Turn cooling OFF immediately — but set the fan to ON. The fan pushes warm house air across the coil and melts the ice in a few hours. Running the compressor against ice can slug it with liquid refrigerant and kill it: the most expensive possible outcome of a cheap problem. Once thawed, check the filter first. If it's clean and the system freezes again within a day, you have a refrigerant or airflow problem that needs a technician.

The Refrigerant Leak Question

Refrigerant doesn't get "used up" — low charge means a leak. Topping off without finding it buys weeks at best. We leak-test with electronic detectors, quote the actual repair, and give you real repair-vs-replace numbers if the system is older. No scare tactics, no sales script — especially when a compressor replacement on an old R-22 unit changes the math entirely.

Ice on the lines right now? Kill the cooling, switch the fan on, and get on our schedule — or call (888) 217-1674 for same-day help.