Frost on the outside of the receiver/dryer, but not on the liquid line between the condenser and receiver/dryer indicates ______.

Question

Quizplus · Accepted Answer

A restriction in the receiver/dryer would cause a temperature drop across the restriction, leading to frost formation on the outside of the receiver/dryer. This is because the refrigerant's pressure drops across the restriction, causing its temperature to fall below the dew point, hence the frost formation. The other options do not specifically cause frost to form on the receiver/dryer while not affecting the liquid line between the condenser and receiver/dryer in the same way.

Frost on the Outside of the Receiver/dryer, but Not on the Liquid