Fires & Sons Refrigeration | Local HVAC Services in Shamrock, TX

This is a classic sign of an evaporator coil freeze-up, a common issue in our Shamrock homes. It's often caused by restricted airflow from a dirty air filter, low refrigerant levels, or a failing blower fan. We recommend turning the system off to let the ice melt and calling us. Our technicians will diagnose the root cause—whether it's a simple filter change or a refrigerant leak repair—to prevent the problem from recurring and protect your compressor from damage.

Yes, that humming sound without the fan and compressor starting is a strong indicator of a failed AC capacitor, one of the most frequent repairs we see locally. The capacitor provides the necessary jolt of electricity to start those motors. In the high heat of a Texas summer, capacitors can wear out. It's a critical but repairable component. Our team carries common capacitors on our trucks and can typically replace it on the spot, restoring your cooling quickly and efficiently.

Proactive maintenance is key. The two most effective steps you can take are: 1) Change your air filter every 1-3 months. A clean filter prevents dust buildup that leads to coil freeze-ups. 2) Schedule a professional preseason tune-up with Fires & Sons. Our maintenance check includes testing capacitors, checking refrigerant levels, cleaning coils, and ensuring all electrical components are secure. This service helps catch small issues before they turn into costly, inconvenient breakdowns during our hottest months.