AC Freezing Up in Arizona — What to Do

AC freezing up in Arizona is most commonly caused by: (1) low refrigerant from a leak, (2) clogged air filter restricting airflow, (3) dirty evaporator coil, (4) blower motor failure. In Arizona's extreme heat, a frozen AC is especially dangerous because it means your system is not cooling your home. Call Bradford at (623) 624-6246 for same-day diagnosis.

Turn off the AC at the thermostat (switch to FAN ONLY or OFF). Let the ice thaw for 2–4 hours. Replace your air filter. Then turn the AC back on. If it freezes again within a few hours, call Bradford — you likely have a refrigerant leak or airflow problem that requires professional repair.

A frozen evaporator coil typically takes 2–4 hours to fully thaw with the AC off. You can speed up the process by running the fan only (not cooling). Do not run the AC while the coil is frozen — it can damage the compressor.

Yes. Running a frozen AC can damage the compressor — the most expensive component ($1,500–$3,000 to replace). If your AC is frozen, turn it off immediately and let it thaw before restarting. If it freezes again, call Bradford.

The cost depends on the cause: refrigerant recharge ($200–$600), evaporator coil cleaning ($150–$300), blower motor replacement ($300–$700), duct modification ($400–$1,500). Bradford waives the service call fee with any approved repair.

Not necessarily. A frozen AC can be caused by a clogged air filter (free fix) or dirty coil ($150–$300 cleaning). However, if your AC freezes repeatedly after replacing the filter, you likely have a refrigerant leak. Bradford diagnoses the cause before recommending any repair.

Yes. Replace your air filter every 1–3 months (more often in dusty Arizona conditions). Keep all supply and return vents open and unobstructed. Schedule a $59 Bradford tune-up each spring to clean the coil and check refrigerant levels before summer.

Yes. Bradford offers same-day service for frozen AC in Surprise, Peoria, Glendale, Goodyear, Buckeye, Sun City, and Sun City West. Call (623) 624-6246. We prioritize frozen AC calls in summer because your home is not being cooled.