Answer Hello Jim. Pull the unit out and unplug the power to the unit. Remove the back panel off the control panel and access the old board. Remove the screws securing the old board and install the new board WP22004299. Then remove the wires from the old board and install them onto the new board as you remove them from the old board so they don't get placed in the wrong location on the new board. Read More... Answered by AppliancePartsPros.com | Thursday, July 19, 2012