A.C. Smart Mechanical - Denton's Top-Rated HVAC Services

Yes, that's a classic sign of a failed AC capacitor, a very common repair we see in Denton homes, especially during heat waves. The capacitor helps start your outdoor unit's motor and compressor. When it fails, the unit often hums but won't start. Our technicians can quickly test and replace the capacitor to restore your cooling, usually on the same day you call.

An evaporator coil freeze-up is often caused by restricted airflow or low refrigerant levels. In Denton, clogged air filters from our pollen and dust are a frequent culprit. It can also stem from a dirty coil or a failing blower motor. We'll diagnose the root cause—whether it's a simple filter change, a coil cleaning, or a refrigerant leak repair—to prevent recurring freeze-ups and protect your system.

Our standard service includes a thorough inspection of your entire HVAC system. We check electrical components like capacitors and contactors, measure refrigerant levels and pressures, inspect the evaporator and condenser coils for dirt or damage, assess airflow from your registers, and test the thermostat. We then provide a clear, honest explanation of any issues found and a detailed quote for repair before we begin any work.