Williams Mechanical - Medford's Certified HVAC Repair

That's a classic symptom of a failed AC capacitor, which is one of the most common repairs we see in Medford. The capacitor helps start the compressor and fan motors. When it fails, the system hums but can't start properly. Our technicians can quickly diagnose and replace the capacitor, often getting your cooling back online the same day.

This points to an air handler fan failure, another frequent issue in our area. The problem could be a faulty blower motor, a bad capacitor specific to the indoor unit, or a tripped safety switch. We'll inspect the air handler in your attic, basement, or closet, identify the exact cause—like a worn motor bearing—and provide a repair or replacement option to restore proper airflow throughout your home.

Absolutely. Many capacitor and fan motor failures are accelerated by wear, dirt, and electrical stress. Our preventive maintenance service includes cleaning components, checking electrical connections, and testing capacitors for early signs of weakness. This proactive care for your system can help avoid inconvenient breakdowns during peak summer heat and extend the overall life of your HVAC equipment.