Ugo F Middle Village , NY August 04, 2015 Appliance: Magic Chef Free Standing Gas Range 31FN-2KLX-CI Magic Chef Range 31Fn-2Klx-Ci: Haven was not working. How to replace Safety Valve. Replace a new safety gas valve 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes