In today's world, the importance of environmental conservation is a huge factor that any industry needs to consider this fact to be a green company. HVAC systems generally consume around 20 percent of the total energy required in any building. That chiller is a critical component of an HVAC system; we need to make sure that it works efficiently. If we can improve the efficiency with which our chillers work, we can reduce the power consumption and save a lot of money. Often, people are not fully aware of all the factors causing the low performance of the chiller, and they miss a few factors. This paper highlights how to increase the chiller’s performance without replacing it. This paper will help you identify such problems whenever they occur in the chiller. A detailed description of all the possible issues, along with the specific cause of each situation, is mentioned in the paper. Once we know the reason, we can quickly brainstorm the idea and find loopholes in our existing system. Moreover, the practical ways that we need to take to eliminate these problems are also mentioned. All the techniques and methods suggested in the paper can be applied to existing chillers. By successfully implementing these solutions, many organizations have increased the efficiency of their chillers and reduced their power consumption.