HVAC Repair Greensboro NC | Call Sullivan Mechanical

This is a common problem during our hot Triad summers. The issue could range from a simple refrigerant leak or a dirty air filter to a more complex compressor failure. Sullivan Mechanical's technicians are experts in diagnosing AC performance problems. We'll perform a thorough inspection to identify the root cause, explain your options clearly, and get your cooling system restored to full capacity efficiently.

A faulty reversing valve, which switches your heat pump between heating and cooling modes, often shows signs like the system blowing cool air when set to heat, or warm air when set to cool. You might also hear a noticeable hissing sound. As Greensboro HVAC specialists, Sullivan Mechanical can accurately diagnose this critical component. While the valve itself can sometimes be repaired, it often requires replacement. We'll provide a straightforward assessment and a durable solution to restore your system's proper function.

Preventative maintenance is key to avoiding breakdowns during peak seasons. We recommend biannual tune-ups—once in spring for your cooling system and once in fall for heating. Our maintenance service includes cleaning coils, checking refrigerant levels, inspecting electrical components, lubricating moving parts, and testing system operation. This proactive care from Sullivan Mechanical helps improve efficiency, extends the life of your equipment, and can catch small issues before they turn into costly repairs in the heat of summer or the chill of winter.