William H Cosby , TN August 29, 2017 Button for fan was broken / card was dislodged 1. Unplug the power. 2. Slide off top vent by removing two screws. The door must be open to remove the vent off the top of the microwave. 3. Remove one screw to the left of the panel that must be removed in order to get to the control board and buttons. 4. Take a picture or label the cables connected to the control board. 5. Remove old buttons 6. Insert the new 4-button set, which must be inserted as a unit. This is tricky and you need to be very careful not to break any of the buttons in the process. 7. Mount the new board and connect the cable. 8. Connect the remaining cables 9. Put everything back together in reverse order. 10. Plug in and test. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes