Patty G Lexington , SC November 02, 2015 Appliance: Model FRIGIDAIRE WASHER/DRYER STACK UNIT The dryer knob cracked and no longer turned the dryer on The old knob was not repairable. I ordered a new knob for the washer dryer stack unit. The order came within two days of ordering and it was the correct part. I was pleased. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes