1、Do not install or repair without wire qualification certificate. Be sure to ask professionals to install and repair.

2、Make sure that the power is cut off and the two valves are closed before maintenance, and the pump can be maintained after cooling.

3、When removing the pump, attention should be paid to preventing the high temperature gas or liquid scald emitted under the pressure of the system.

4、When replacing the circuit or motor, pump seat or rotor assembly, etc., take care not to omit all kinds of protective seals.

5、Circuit boards belong to pump control system and are sensitive parts. Please pay attention to electrostatic protection when disassembling and assembling.