Follow each step carefully.
Press the power button to turn off the appliance.
Find the water level sensor, usually located near the tub.
Carefully unplug the wiring harness from the water level sensor.
Unscrew the sensor from its mounting and remove it.
Position the new water level sensor in place and secure it with screws.
Plug the wiring harness back into the new water level sensor.
Press the power button to turn the appliance back on.