Follow each step carefully.
Press the 'Power' button for 3 seconds to turn off the device.
Use a screwdriver to remove the screws securing the pump motor cover.
Unplug the power supply connector from the pump motor.
Remove the screws holding the pump motor in place using a Phillips screwdriver.
Carefully pull the pump motor out from its housing.
Check for any wear or damage and replace any faulty components.
Insert the repaired pump motor back into its housing and secure it with screws.
Plug the power supply connector back into the pump motor.
Reattach the pump motor cover and secure it with screws.