Turn off your Whirlpool and unplug the power cable.
Pull the dryer away from the wall so you have access to the rear of it.
Unplug the water line connected to the rear of the dryer.
Insert the flat-head screwdriver near the top of the seam where the back panel meets the body of the dryer.
Pry up with the screwdriver to pop the panel off its connector tabs. Repeat with the other side of the panel.
Loosen the two screws on the bottom corners of the panel, using your Phillips screwdriver, but don't remove the screws.
Pull the panel off the dryer to remove it. You now have access to the internal components of the dryer.