High condensing pressure is one of the most often misunderstood and misdiagnosed conditions in refrigeration systems. With a good understanding of the basics of condensing, and a few simple diagnostic steps, high condensing pressure can be easily diagnosed and corrected.

If condensing pressure rises above normal levels, the cause must be determined before taking corrective action. A few simple steps can determine the cause. First, it is necessary to understand that if the supply of condensing water is maintained at a steady temperature and flow rate, condensing pressure will fluctuate in direct correspondence to compressor load. It is therefore important to keep diligent log entries, so patterns can be recognized. The study of operating logs will establish predictable condensing temperatures under a variety of operating conditions.