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HomeElectromagnetic Dosing Pump Common Faults & Troubleshooting

Electromagnetic Dosing Pump Common Faults & Troubleshooting

Electromagnetic Dosing Pump Common Faults & Troubleshooting

How to Solve Electromagnetic Dosing Pump Common Faults?

Troubles & Solutions

In industrial production and processing, electromagnetic dosing pumps may fail to work properly due to various causes and affect industrial production. We have summarized the reasons and solutions for faults such as the pump cannot be displayed or started, fail to suck liquid, and unstable capacity. This will help you quickly troubleshoot dosing pump problems and better serve industrial production.

Common Faults & TroubleshootingCommon Faults & Troubleshooting

Fault	Possible Causes	Correction Method
The pump cannot be displayed or started	Wiring error	Check and correct wiring
	Wrong voltage	Set the right voltage by nameplate
	Circuit board fuse	Replace the right safety tube
	Circuit board damaged	Replace the circuit board
The pump cannot suck liquid.	The liquid suction end is not sealed well.	Check whether the seals and quick links are in good condition.
	Wrong valve assembly	Check and reassemble according to the instructions
	Suction too high	Reduce the installation height of the pump.
	Suction pipe blocked	Open the exhaust valve to remove gas.
	The liquid is too viscous or easily produces bubbles.	The installation position is lower than the liquid level.
	Foot valve blocked	Clean filter plate and foot valve.
	Pump head blocked or impurities	Clean pump head and components.
Unstable capacity	Impurities in pump head	Clean pump head and components.
Unstable capacity	Diaphragm damage	Replace diaphragm
Lower capacity	Impurities in pump head	Clean pump head and components
	Outlet pressure is too high	Check nameplate and replace dosing pump with higher pressure.
	Liquid viscosity is too high.	Please contact the manufacturer, change high viscosity check valve if necessary.
	Driven unit damaged (electromagnet)	Return to factory for replacement.
	Circuit board damaged	Replace the circuit board.
Larger capacity	Siphon occurs	Set a back pressure valve onto the liquid outlet pipe.
Larger capacity	Small outlet pressure	Set a back pressure onto the outlet pipe or change one smaller capacity pump.
Liquid leakage	Upper and lower valve nuts loose	Tighten nuts.
	Pump head becomes loose	Tighten bolts. M/HX: 2.16 N.m NX/GX: 2.41 N.m 30L/50L: 2.90 N.m
	Diaphragm damage	Replace diaphragm
	Seal part missing	Replace the seal part.
	Seal parts or pump head is corroded.	Please contact the manufacturer.
	The outside temperature or liquid temperature is too high.	Please contact the manufacturer

If your electromagnetic dosing pump has the above faults during use, please refer to our troubleshooting solutions. If you encounter problems that cannot be solved, please feel free to contact us, we will help you and ensure that the dosing pump can be put into operation again.