Gj T Sequim , WA January 09, 2016 Appliance: General Electric Free Standing Microwave SCA1000HWW02 Close the door to the microwave the light fan and turntable would go on and never go off unless door was opened I tested the three door switches and they functioned correctly II replaced the smart board and now when the door is closed the light,fan and turntable go off all other functions work correctly. Read More... Do-It-Yourself Rating: Repair Time Estimate: 2+ hours Tools: Screwdrivers