A water-cooled chiller equipment is a capable of providing a constant temperature, constant current, constant cooling water equipment. Its working principle is injected into the tank first to machine a certain amount of water through the water cooled chiller cooling system, then the low-temperature cooling water from the pump into the device to be cooled, chilled water chiller temperature after the heat away return flow to the tank, to achieve a cooling effect. Cooling water temperature can be adjusted automatically according to the requirements, long-term use can save water. Therefore, the chiller is a standard energy-saving equipment. However, if the chiller lack of maintenance, it is very prone to failure, this will cause inconvenience to the production.