Submersible pump three major failure analysis and troubleshooting:
　　
Due to submersible pump work environment and time factors, will inevitably produce some faults, in order to improve its efficiency, we must find out the reasons and troubleshooting submersible pump.
　　
First, the submersible pump operating abnormal vibration, instability
　　
Submersible pump operation abnormal vibration, the main reason for instability and troubleshooting:
　　
1, the pump base anchor bolts are not tightened or loose. (Evenly tighten all anchor bolts)
　　
2, there is no independent support outlet pipe, pipe vibration affect the pump. (The pump outlet pipe is independent and solid support, not to pump the water pipe flange load)
　　
3, impeller quality imbalance or even loose or loose installation. (Repair or replace the impeller)
　　
4, pump up and down bearing damage. (Replace the pump up and down bearings)
　　
Second, the submersible pump water or insufficient flow
　　
Submersible pump in the operation often appear insufficient flow or no water main reasons and solutions:
　　
1, the pump installation height is too high, making the impeller immersion depth is not enough, resulting in reduced pump water. (To control the pump installation elevation tolerance, not free to expand)
　　
2, the pump turned to the contrary. (The pump runs idle before the test run, check the steering to make it consistent with the pump. During the use of the above conditions should check the power phase sequence is changed)
　　
3, the outlet valve can not be opened. (Check the valve, and often to maintain the valve)
　　
4, the outlet pipe is not smooth or impeller blocked. (Clean up obstructions of pipes and impellers, often salvage debris in reservoirs)
　　
5, wear the bottom of the pump wear ring or blocked by debris. (Replace the bottom wear ring, clean up debris)
　　
6, pumping fluid density is too large or too high viscosity. (Re-equipped with matching pump)
　　
7, the impeller is off or damaged. (Reinstall or replace)
　　
8, multiple pumps shared pipeline output, there is no one-way valve or one-way valve is not installed tight seal. (Install one-way valve and replace one-way valve seal)
　　
Third, the submersible pump does not start when it starts
　　
Submersible pump can not start the main reasons and troubleshooting:
　　
1, the power switch and plug contact is not good. (Repair or replacement)
　　
2, control circuit insurance burned. (Replacement insurance)
　　
3, the main circuit insurance burned. (Replacement insurance)
　　
4, two-phase submersible pump capacitor burn out. (Replace the capacitor)
　　
5, three phase submersible pump phase. (Connected to the phase-cut circuit)
　　
　　
Due to submersible pump work environment and time factors, will inevitably produce some faults, in order to improve its efficiency, we must find out the reasons and troubleshooting submersible pump.
　　
First, the submersible pump operating abnormal vibration, instability
　　
Submersible pump operation abnormal vibration, the main reason for instability and troubleshooting:
　　
1, the pump base anchor bolts are not tightened or loose. (Evenly tighten all anchor bolts)
　　
2, there is no independent support outlet pipe, pipe vibration affect the pump. (The pump outlet pipe is independent and solid support, not to pump the water pipe flange load)
　　
3, impeller quality imbalance or even loose or loose installation. (Repair or replace the impeller)
　　
4, pump up and down bearing damage. (Replace the pump up and down bearings)
　　
Second, the submersible pump water or insufficient flow
　　
Submersible pump in the operation often appear insufficient flow or no water main reasons and solutions:
　　
1, the pump installation height is too high, making the impeller immersion depth is not enough, resulting in reduced pump water. (To control the pump installation elevation tolerance, not free to expand)
　　
2, the pump turned to the contrary. (The pump runs idle before the test run, check the steering to make it consistent with the pump. During the use of the above conditions should check the power phase sequence is changed)
　　
3, the outlet valve can not be opened. (Check the valve, and often to maintain the valve)
　　
4, the outlet pipe is not smooth or impeller blocked. (Clean up obstructions of pipes and impellers, often salvage debris in reservoirs)
　　
5, wear the bottom of the pump wear ring or blocked by debris. (Replace the bottom wear ring, clean up debris)
　　
6, pumping fluid density is too large or too high viscosity. (Re-equipped with matching pump)
　　
7, the impeller is off or damaged. (Reinstall or replace)
　　
8, multiple pumps shared pipeline output, there is no one-way valve or one-way valve is not installed tight seal. (Install one-way valve and replace one-way valve seal)
　　
Third, the submersible pump does not start when it starts
　　
Submersible pump can not start the main reasons and troubleshooting:
　　
1, the power switch and plug contact is not good. (Repair or replacement)
　　
2, control circuit insurance burned. (Replacement insurance)
　　
3, the main circuit insurance burned. (Replacement insurance)
　　
4, two-phase submersible pump capacitor burn out. (Replace the capacitor)
　　
5, three phase submersible pump phase. (Connected to the phase-cut circuit)
　　
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