Vincent C Chatsworth , GA October 14, 2016 Appliance: Frigidaire Freezer LFFU14F5HWA Frigidaire Freezer Lffu14f5hwa: Not cooling keypad blank and unresponsive unplugging the power cord momentarily would restore proper function but the problem recurred at random. How to replace User Control Board. Replaced the control panel/control board. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes