Troubleshooting Methods for General Self-Priming Pump Failures


Published:

Feb 28,2024

The following are some common faults, causes and troubleshooting methods of self-priming pumps during use.

Troubleshooting Methods for General Self-Priming Pump Failures

The following are some common faults, causes and troubleshooting methods of self-priming pumps during use.

Fault 1. The motor does not rotate
Cause of failure: 1. The motor is damaged 2. The power supply is blocked
Troubleshooting method: 1. Repair or replace the motor 2. Check the power supply

Fault 2: The water pump does not discharge liquid
Reasons for failure: 1. Insufficient drainage fluid 2. Large amount of air leakage from the suction end flange, valve or pipeline 3. The nut of the drainage port or vent is not tight, or there is no washer in the nut 4. There is no liquid in the container or liquid pool
Troubleshooting method: Check one by one and eliminate

Fault 3: Flow and head (pressure) are not up to standard
Reasons for failure: 1. The voltage is too low and the speed is not enough. 2. The motor is reversed. 3. The bottom filter is clogged and the flow is insufficient. 4. Chronic air leakage in the suction end flange, valve or pipeline affects the vacuum of the water pump. 5. Container or There is too little liquid in the liquid pool, and air is sometimes sucked in.
Troubleshooting method: Check one by one and eliminate

Fault 4. Leakage at the connection between the motor and the water pump
Cause of failure: leakage all the time during operation. (It may be that the sealing device is damaged)
Troubleshooting method: Check the sealing device

Keyword:

Self-priming