On a refrigerant system there is heavy frost on the expansion vave inlet and low-side pressure is well below normal.Technician A says that the expansion valve is stuck in the open position could be the cause.Technician B says that a restricted expansion valve inet screan could be the cause.Who is correct?

Question

Quizplus · Accepted Answer

A restricted expansion valve inlet screen can cause a decrease in pressure and excessive frost on the expansion valve inlet. Technician A's statement may be true in some cases, but it is not the most likely cause.

On a Refrigerant System There Is Heavy Frost on the Expansion