Expert HVAC Services in Plano, TX 75094 - A Air Conditioning & Heating Company

Yes, a failing capacitor is one of the most common reasons for an AC to stop cooling in our area. Capacitors help start the compressor and fan motors, and the extreme summer heat in Plano can cause them to wear out. Symptoms include a humming noise from the outdoor unit, the system struggling to start, or no cold air. Our technicians can quickly test and replace a faulty capacitor to restore your cooling, often on the same day.

This is a classic sign of a malfunctioning reversing valve, a key component that switches your heat pump between heating and cooling. When this valve gets stuck—often due to debris, wear, or electrical issues—it can't direct refrigerant properly. If your system is blowing cool air when you need heat, it's time to call us. We specialize in diagnosing and repairing reversing valve problems to get your Plano home warm again efficiently.

Proactive maintenance is key in our climate. We recommend bi-annual tune-ups. In spring, we'll check capacitors, refrigerant levels, and clean coils to prepare for summer strain. In fall, we inspect the reversing valve operation, electrical components, and the defrost cycle to ensure your heat pump is ready for winter. This preventative care helps catch small issues before they lead to a complete breakdown, saving you money and discomfort.