How to deal with the water pump of a 2 ton water chiller not running?

　　How to deal with the water pump of a 2 ton water chiller not running?

　　1、 The reason why the water pump in the 2-ton chiller cannot discharge water:

　　1. The mechanical failure of the water pump itself can lead to a decrease in pump speed due to loose fastening nuts of the impeller and pump shaft, or bending of the pump shaft due to deformation, resulting in excessive movement of the impeller, friction with the pump body, or damage to the shaft.

　　Motor faults can cause changes in the speed of the water pump due to reasons such as burnt windings, loss of excitation, changes in winding turns, wire diameters, and wiring methods during maintenance, or inability to completely eliminate faults during maintenance.

　　3. The bottom valve cannot be opened, the impeller is severely worn, the filter mesh of the bottom valve is blocked, or there may be a sludge layer in the water at the bottom valve, causing the filter to be blocked. The failure or blockage of the gate valve can lead to a decrease in flow rate or even inability to discharge, and the leakage of the discharge pipeline can also have a certain impact on the water yield.

　　2、 Water pump failure and cause analysis

　　1. Water pump failure: abnormal noise from the water pump, overload of the water pump, high vibration, poor water absorption, inability to start, insufficient flow rate, heat generation of the water pump, burning of the water pump, etc. Reason for abnormal water pump: Air entering the water pump will reduce the efficiency of the pump and produce abnormal noise. Loose pipeline screws, aging parts and air holes, and ineffective sealing valves are the main reasons for poor cooling water circulation; Replace or repair the water pump.

　　3、 Solution to water pump faults

　　1. Check the power supply first to confirm whether the three-phase current is balanced; If the water pump is blocked, clean the water pump or replace the entire unit; It can be solved through adjustment, repair, reinforcement, straightening, replacement, and other methods. Check the operation of the cooling water circulation pump,; Check whether the Computer fan of the heat exchanger works normally; Clean the filter or replace it with the same type of filter; Add cooling medium to the system.