Melissa B Portland , OR December 07, 2016 Appliance: KitchenAid 30" Built-In Electric Double Oven Thermal Convection-Upper Self-Clean KEBC207KSS04 Kitchenaid Oven Kebc207kss04: Loud and noisy double oven. How to replace Lower Blower Assembly. It needed a new blower motor. I ordered it and it arrived quickly. It took 2 people to lift out the double oven from the wall. Take off the sheet metal covering. Trade out the old blower motor, put it all back together and lift it back. Easy 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes