Ken S Grove , OK August 07, 2016 Appliance: Whirlpool 27" Built-In Electric Double Oven Std-Clean Lower Self-Clean Upper RBD275PDS14 Whirlpool Oven Rbd275pds14: Bad cooling blower motor. How to replace Cooling Blower Kit. Removed defective part and installed Appliance Parts Pros exact replacement part. Entire project took 2 hours. That included removing built in double oven oven from wall, removing old part and installing new part, and then replacing oven in wall and reinstalling trim. Do-It-Yourself Rating: Repair Time Estimate: 2+ hours