Ldwa China Supplier Good Quality Econimical Multistage Centrifugal Pump, Find details about China High Pressure High Flow, Water Supply Plant from Ldwa China Supplier Good Quality Econimical Multistage Centrifugal Pump
fault phenomenon | failure cause | elimination methods |
1.No power supply or one or two phase power supply is needed | Check all phases of power supply and restore power supply | |
2.Poor contact of ac contactor and burning of coil | Repair or replace contactors | |
can not start | 3. The power switch is not closed, malfunction or damaged | Close the switch and replace it if the power indicator does not turn on |
4. Thermal relay trip or damage | Check whether the motor is blocked, find out the reason and eliminate it.Manual reset is replaced if it cannot be started | |
Water level is too low | Put water in the sink | |
The motor burned | Repair or replace the motor | |
1.Line is loose | Check wiring and tighten connectors | |
2.Frequency converter malfunction | Check the fault content, check the cause according to the frequency converter manual, and restart after reset.Or disconnect the inverter power supply for a few seconds, the inverter fault reset before starting. | |
The manual is normal | 3The frequency converter is damaged | Repair or replace |
Automatic transmission failure | 4.Pressure switch damage | Repair or replace |
5The pressure transmitter is damaged | Repair or replace | |
6.Switch failure | Repair or replace | |
Pump non - suction pressure gauge pointer to beat violently | Insufficient water supply for perfusion, air leakage at the connection between pipeline and instrument | Check pipeline and bottom valve, refill water diversion. Tighten air leakage |
The pump consumes too much power | Too much flow, impeller wear | Check whether the pump shaft is bent, replace the impeller, close the outlet valve to reduce the flow |