| Faults |
Reasons |
Solutions |
| The booster pump runs but no water output. |
- The water in the pump is not full.
- Wrong direction of rotation.
- The impeller passage is blocked.
|
- Inject water into the pump again.
- Drain the impeller passage.
- Adjust the direction of rotation.
|
| The booster pump flow is insufficient. |
- The pump is blockage.
- Low revolution.
- The impeller is damage.
- The outlet valve opening is too large.
|
- Clean the pump and tube.
- Replace the impeller.
- Add shaft revolution.
- Turn down the outlet valve.
|
| The pressure of the outlet is insufficient. |
- There is air in the liquid.
- Low revolution.
- The impeller is damage.
- The outlet valve opening is too large.
|
- Expel air from the liquid.
- Replace the impeller.
- Add shaft revolution.
- Turn down the outlet valve.
|
| The booster pump consumes too much power (motor heating). |
- Mechanical defects: Running clearance is too small; the motor shaft is bent; bolts looseness.
- The booster pump operates well below the rated head.
|
- Check the mechanical parts and solve the problems in time.
- Adjust the outlet valve to make sure the pump works near the rated flow and rated head.
|
| The booster water pump vibration. |
- The piping system is not well supported.
- The impeller is blocked causing imbalance and cavitation effect.
- There is air in the liquid.
|
- Check the support part of the pump.
- Tighten the bolts.
- Drain the impeller passage to make it balance.
- Expel air from the liquid.
|
| The booster pump is water leakage. |
- The mechanical sealing is damage.
- The O-ring is damage.
- The pump itself is water leakage.
|
- Replace the mechanical sealing and O-ring.
- Welding the pump body where it leaks.
|
| Excessive pump noise. |
- The bearing is overheating and lack of oil.
- The booster pump is overload.
|
- Fill oil in the bearing.
- Check the mechanical parts and solve the problems in time.
|