Unplug the power cord and shut off the gas supply if you own a gas model. Move the dryer a few inches away from the wall so you can reach the rear panel.
Remove the three screws on the back edge of the top panel and set them to one side. Pull the cover backward and lift it off the dryer to reveal the back of the control panel and the top of the drum.
Open the dryer door, lift the lint screen out of its slot and close the door. Remove the screw located in each of the bottom corners below the door and set them to one side. Pull out and down to remove the toe panel and reveal the motor and ducting.