Deborah G Felton , DE December 30, 2014 Appliance: Model WHIRPOOL GR450LXHQ1 Interlock switch was not allowing oven range to lock when put in clean mode Ordered switch interlock, after reading a question you responded to from a customer whose oven had the same symptoms as I did - clicking and not being able to lock. I love your website and all the help you provide. So far I fixed washer, dishwasher and now range. I cleaned my oven last night!! This is the first time I did not have a video to follow but the thing to do is take a picture of the part needing replacement PRIOR to taking it apart. I think I found my calling - LOL! 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes