Michael R Benton , AR March 11, 2017 Appliance: Frigidaire Freezer GLFH21F8HWB Frigidaire Freezer Glfh21f8hwb: When door was opened the light inside blinked and sometimes a clicking noise could be heard coming from the control panel in the door (probably a relay) occasionally the display would also blink. How to replace Electronic Control. Replaced the control panel. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes