Vernon M Falls Mills , VA October 31, 2016 Appliance: Frigidaire Freezer LFFH21F7HWA Frigidaire Freezer Lffh21f7hwa: When i opened the upright freezer door the light would flicker on and off then the electronic control assembly would go stop working. How to replace Electronic Control. Replaced electronic control assembly works fine now 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes