Jason M Mission , KS February 03, 2017 Appliance: Whirlpool Washer GHW9250ML0 Whirlpool Washer Ghw9250ml0: Mold smell in front loader washing machine. How to replace Control Knob. Removed the the drain hoses and replaced. Mold smell is gone. Unfortunately broke the control dial in the process. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours