Answer Hello Teresa, First, flip the breaker off and back on in case half of the breaker has tripped. You need to check the door switch WP3406105. Many times the plastic door switch actuator, (part the door contacts when the door is closed against it), will break off. If this isn't it, the thermal fuse WP3392519 has probably blown. Read More... Answered by AppliancePartsPros.com | Monday, June 18, 2012