If a filter drier is clogged, it will feel what condition?

A clogged filter drier will feel cooler than normal because it restricts the refrigerant flow. When the flow is impeded, the refrigerant cannot circulate adequately through the system, causing a drop in pressure and temperature at the filter drier. This cooling effect can be attributed to the refrigerant experiencing an excessive pressure drop as it tries to move through the restricted area.

In healthy operation, a filter drier provides a consistent flow of refrigerant and maintains a balanced temperature throughout the system. If a filter drier becomes clogged, the lack of proper refrigerant flow can lower temperatures in that area, which is why it can feel cooler to the touch compared to its normal operational state.