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Fault
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Reason
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Measures
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Motor can not start
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Motor voltage is too low：a.Low power supply voltage；
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a.Will be transferred to the rated voltage rang.
b.Power cord with larger cross section.
c.Move closer to the power line position.
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| Single phase power supply(3-phase)：a.Poor contact of power switch；b.Fuse fuse c.Power cord loose；d.Cable fault phase |
a.Repair switch contact or replace switch；b.Replace fuse；c.Check and tighten the power adapter；d.Repair or replace the cable
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The cable drop is too large：a.Line is too long b. The cable section is too small
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a.Remove excess c able
b.Cable with larger cross section
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The capacitor burned.
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Replace the same type of capacitance.(Send the maintenance point maintenance)
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Shaft and bearing die
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change bearing (Send the maintenance point maintenance)
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Impeller stuck
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Use the screwdriver to move the blade end shaft, the rotating flexible or open the pump body to clear debris.
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Winding of stator broken
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Replace winding coil (Send the maintenance point maintenance)
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Motor running, but not water
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Pump rotation direction is wrong
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Conversion motor in which the two phases of the wiring (three-phase motor)
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The pump is not filled with water
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To pump water into the pump body.
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damaged impeller
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change impeller
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The water level is lower than the bottom valve
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Adjust the inlet pipe to pump valve in the water
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Water suction pipe leakage
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Check the sealing condition of each joint of the suction inlet pipe.
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The water level is too low, which is lower than the limit of the pump.
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Adjust the installation height of the pump or choose the appropriate pump.
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Water in a pipe or pump chamber causes icing.
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After the ice has been turned on.
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Insufficient pressure
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Pump selection is not correct.
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Choose the right water pump.
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| The water inlet pipe is too long, or too many bends, the diameter of the water inlet pipe is not selected according to the regulation. |
Selection of the provisions of the pipe diameter, so that the design of the inlet pipe is a little shorter。
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Foreign matter blocking inlet pipe, filtering net or pump cavity
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Clean the pipe, valve or pump chamber to remove debris
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Motor voltage is too low, the wire is too long
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Check the end voltage of the motor and the cross section of the wire
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Pump vibration
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Pump is not fixed in the base
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Tighten the anchor bolts
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There is a foreign body in the pipe or pump cavity
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Check, clean pipes and water pumps.
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Stability of the base is not enough
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Installation of a more stable base
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Motor stator winding burn or intermittent work
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Motor overload running time is too long
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The installation of the valve outlet, reduce water
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Impeller stuck or long time overload operation
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Removal of impurities in the pump cavity, as far as possible in the rated flow of water pump work
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Ground faults or cable damaged by lightning, electric pump
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Find the reason, change the winding coil
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Water leakage at the support
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Mechanical seal with impurities
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Clean or replace mechanical seals |
