Kevin C Columbus , TX January 18, 2017 Refrigerator and freezer not cooling started making a loud humming/buzzing noise for about 20 seconds then a loud click Compressor start relay had gone bad. Ordered parts from appliancepartspro.com and fixed it in about 10 minutes for less than $70. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes