在投资开发自动故障检测和诊断（FDD）之前，重要的是识别要考虑的最重要的故障。本文介绍了在美国主要冷水机组制造商中进行的故障调查的结果，以确定冷水机组中最常见和最昂贵的故障。故障数据以发生频率和相对维修成本表示。根据故障调查，确定了许多重要且难以诊断的冷水机组故障。引文:研讨会论文，大西洋城，2002年

Before investing in the development of automated fault detection and diagnostics (FDD), it is important to identify the most important faults to consider. This paper presents the results of a fault survey that was conducted among the major American chiller manufacturers in order to identify the most common and expensive faults that occur in chillers. The fault data are presented in terms of frequency of occurrence and relative cost to repair. Based on the fault survey, many of the important and difficult to diagnose chiller faults were identified.