Well pump with submersible well is an important equipment for deep well water supply, when used, the whole unit dives into the water to extract the groundwater to the surface. Well submersible pump common faults and troubleshooting methods Submersible pump common cause of the fault and its troubleshooting Symptom: No water, less water or intermittent water. Reason: ①motor reversal; ② motor does not start; ③ water level lower than the suction inlet; ④ pipeline or connection serious leaks; ⑤ pump seal ring or impeller severe wear and tear bad; ⑥ motor and pump coupling sleeve ran . Remedy: ①exchange contact location; ② exclude the line fault, check the voltage; ③ increase the pump or replace the water pump; ④ demolition pump troubleshooting, eliminating the failure; ⑤ replace the seal ring or impeller; Symptom: traffic is reduced. Causes: ①seal ring is worn; ② filter is blocked; ③ Yang pipe or shell between the water leakage. Remedy: ①demolition pump replacement seal ring; ② demolition pump repair drainage network; ③ demolition pump troubleshooting, troubleshooting. Symptom: Unit violent vibration. Reason: ①pump shaft bending; ② pump and motor bearings wear too much. Remedy: ①disassemble the pump shaft or replacement; ② remove the pump or motor, bearing repair. Symptoms: ammeter pointer swing large. Causes: ①moving water level down to the pump inlet; ② flow is too large, causing the pump rotor string. Remedy: ①increase Yang pipe or replace the pump; ② small valve to reduce the amount of water. Symptoms: insulation resistance dropped to 0.5MΩ below. Causes: ①cable connector is not high quality; ② motor insulation damage; ③ cable damage. Remedy: ①reconnect the cable connector; ② repair motor windings; ③ repair or replace the cable. Symptoms: start the motor does not turn, there is a buzz. Reason: ①motor single-phase operation; ② bearing bite axis. Remedy: ①Check the power cable to find out the phase; ② repair or replace the bearing. (Editor: Li Juan QQ:) Recommended reading: Acting procurement
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