QMED Basic Refrigeration Practice Test 2025 - Free QMED Refrigeration Practice Questions and Study Guide

A clogged condenser coil can lead to various operational issues within a refrigeration system, and one significant risk is the increase in head pressure at the compressor. When the condenser coil is obstructed, heat exchange efficiency is reduced, causing the refrigerant to not condense effectively. This inefficiency leads to an accumulation of refrigerant vapor in the condenser, resulting in higher pressure within the system.

As the head pressure rises, the compressor must work harder to compress the refrigerant, potentially leading to increased wear and tear on the unit, overheating, and ultimately, system failure if left unaddressed. High head pressure can also lead to high discharge temperatures, which can be damaging to the compressor and other components in the refrigeration cycle. Therefore, monitoring and maintaining clean condenser coils is crucial for system efficiency and longevity.