Gaylene C Rockford , IL August 09, 2025 Appliance: Whirlpool Air Conditioner BPAC0700AS1 Whirlpool Air Conditioner Bpac0700as1: Control knob broke on ac unit. How to replace Knob, Control (Black With Silver Indicator). Put the replacement knob on in a minute. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes