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| Fault | Reason | Measurement |
| Unable to start pump |
No power supply voltage
|
Check the power supply voltage |
| Pump not pumping |
Filter surgical blockage Impeller stuck |
Clean the filter housing Cleaning the pump |
| Insufficient pumping capacity |
Filter housing clogged Excessive loss in the inlet pipe |
Clean the filter housing Minimize the length of the hose as much as possible Remove unnecessary connectors |
| Pump shutdown after short operation |
Severe water pollution The water temperature is too high |
Cleaning the pump Note that the maximum water temperature is 35 degrees Celsius above zero |
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