Marvin T Bloomington , IL March 11, 2019 Appliance: Model 106.51132213 Chattering noise in ref determined it was diffuser that controls cooling air from freezer to ref of course 1 mo out of warranty Ordered diffuser & replaced. Found video on you tube but mine was different & a lot simpler. Removed 1 screw & 1 elec plug & swapped out. Piece of cake! 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes