Margaret C Pomona , CA August 02, 2022 Appliance: Whirlpool MODEL_PBK0190 Whirlpool Model_Pbk0190: Knob broke. How to replace Dryer Control Knob And Clip. Ordered new knob and l pushed it back onto the stem it went on. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes