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Submersible pump is running underwater, the cause of the malfunction and troubleshooting and general pump is different.
(1) submersible pump can not start a situation is closing, the motor makes a buzzing, indicating that the circuit is on, but the motor does not turn, then immediately stop inspection. The reasons are: cable, switch wiring or motor stator windings have one phase unreasonable, the formation of phase power supply; voltage is too low, the reason may be low power supply voltage, the cable is too long and the cross section is too small, the transformer capacity is too small or transformer from the unit Too far, etc., should be checked one by one, to be ruled out; impeller is stuck by debris or guide bearing and shaft gap is too small; the occurrence of axial, biting death phenomenon, pump should be checked, clean or repair bearings. Another situation is that after closing the motor does not turn, there is no sound, indicating that the circuit barrier, this should first check whether the circuit is open or broken off, the fuse is in good contact or is blown. Such as the line is normal, the motor stator winding may be burned out, check the motor stator windings can be disassembled, if the inspection is true, the winding should be dismantled, re-line change.
Submersible pump common troubleshooting
WQ submersible sewage pump with its excellent performance is widely used in urban water supply and drainage industry, drainage of construction sites, factories, mines, residential wastewater discharge and farmland irrigation, waterworks pouring, liquid fertilizer processing aquaculture. A wide range of installation methods are fixed wet installation, fixed dry installation and mobile installation.