HVAC Services Saint Louis MO | Call Mr Heating & Cooling LLC

Common signs include warm air blowing from vents, ice forming on refrigerant lines, higher energy bills, and a hissing sound. As refrigerant is essential for cooling, a leak reduces efficiency and can damage the compressor. Our technicians use electronic leak detectors to pinpoint the source precisely. We then repair the leak, evacuate the system, and recharge it with the correct amount of EPA-certified refrigerant, restoring optimal performance and preventing future issues common in our area.

If your heat pump is stuck in one mode or not providing the desired temperature, a faulty reversing valve is a likely cause, especially given our climate's demands on these systems. We'll diagnose the valve electrically and mechanically. In many cases, we can repair solenoid or component issues. If a full replacement is needed, we install a high-quality, compatible valve to ensure your heat pump operates reliably year-round, providing efficient heating in winter and cooling in summer.

Our preventative maintenance service is designed to catch small issues before they become big, expensive repairs. During a tune-up, we thoroughly inspect refrigerant levels and lines for early signs of leaks, check electrical components controlling valves, clean critical parts, and ensure the entire system is operating efficiently. This proactive care reduces strain on your system, extends its lifespan, improves energy efficiency, and helps prevent the specific failures we frequently see in the Saint Louis area.