The pressure of the water when the user uses water is not stable.

(1) Doristor resonance caused by water pressure fluctuations caused by the frequent transmission of water and frequency pumps.

(2) The frequency of the frequency conversion part is likely to close the resonance caused by the mechanical vibration frequency of the pump.

(3) The user's water pressure fluctuations during the use of water are relatively severe, resulting in the working state where the frequency pump has been in frequent frequency.

(4) View whether the bearings of the water pump without negative pressure supply equipment have worn the bearing.

(5) The parameters of the inverter pump are not set.

(6) Check whether there is air erosion and whether there is air gathering out of the export pipeline.

The pump is stressed at the moment of startup

(1) At the moment of starting the water pump, there is a water hammer.

(2) It is necessary to check whether the pipeline is blocked and causes pressure to change. It is likely that due to the small flow and the need to check whether the pipeline is leaking, resulting in the pressure cannot be kept mechanically.

(3) Generally speaking, the water supply unit is automatic, and the automatic work of the water supply unit is achieved by controlling the switch of the crew by pressure. The size of the pipeline flow will directly affect the pressure of the pump. When the flow becomes smaller, the pressure of the pump will appear very large.