Difficulty

First remove all the visible screws to expose the internal components from inside the shell.
Locate the water pump below the fan blades cradled on a lever.
Remove the plastic bracket and use your pliers to unfasten the water hose from the water pump.
Cut the zip ties from the water pump wire.
Using your PH1 screwdriver, unscrew the PCB cover and open it up.
Trace your water pump wire to its terminal on the PCB and remove its connector.
Detach and replace your water pump.
Insert your new water pump in position and attach to the water hose.
Close your PCB cover and screw into place.