What is the result of having too much refrigerant in a system?

Having too much refrigerant in a system can lead to short cycling. This occurs when the system runs inefficiently due to an excess of refrigerant, which can cause increased pressure within the system. When this happens, the compressor may turn on and off frequently, not allowing the system to operate effectively. Short cycling can lead to increased wear and tear on components, inefficiencies in cooling performance, and ultimately reduced lifespan of the HVAC system.

In contrast, high efficiency and increased cooling capacity would generally be associated with an optimal amount of refrigerant, not excess. An excess might lead one to think it could enhance cooling capacity, but rather, it disrupts the proper function of the system. Additionally, having too much refrigerant does not have "no effect" on the system, as the complications and issues resulting from improper refrigerant levels are significant enough to impact overall performance and reliability.