REVERSING VALVE

The reversing valve is a somewhat delicate component that has a pipe on the bottom and three on the top. The job of the reversing valve is to change the direction of the flow of refrigerant in your system; this is how the heat pump changes modes between heating and cooling. The valve has two settings within it: one is excited, the other is relaxed. The valve manufacturer sets which state stands for heating and which stands for cooling, so there can be variations between valves. What doesn’t change is that once a state is set for a specific mode – either heating or cooling – it stays that way for the life of the pump.
So how do the pump change modes? As the homeowner, you press a button on your dual-mode thermostat. This cues the heat pump’s solenoid, which is a low-voltage electrical component, to slide the valve in the opposite direction. As the valve slides, the refrigerant also helps the valve to change states between relaxed and excited, or vice versa. Once the valve has slid into the correct position, the mode has changed.
When the Valve Is Stuck
One of the most common problems that can develop with a reversing valve is that is can get stuck. It may become stuck in a specific mode or in between modes. If the valve is stuck due to a bad solenoid, the solenoid can be replaced; but should there be another problem causing the valve to stick, such as leaking refrigerant, the valve will need to be replaced.
Reversing valve repairs should only be handled by trained professionals at A/C Advice Of South Carolina. The valves can be complex, but more importantly, they operate with refrigerant, and you must be certified to handle refrigerant. The trained technicians at A/C ADVICE OF SOUTH CAROLINA can handle all types of heat pump repairs in the upstate of South Carolina, so don’t hesitate to call A/C ADVICE OF SOUTH CAROLINA to if you need help with your heat pump system.