Charles T Birmingham , MI December 17, 2019 Appliance: Model JENNAIR SVD48600W Broken valve knob Have received 2 of 4 ordered replacement parts and they work fine. Awaiting delivery of 2 back ordered valve knobs. The new design is noticeably different from the original to require replacement of all 4 knobs. Read More... Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes