James M Payette , ID June 21, 2020 Appliance: Bosch GE010-010 Bosch Ge010-010: Freezing up had to unplug and melt solid block of ice on refrigerator coils once a month to make it cold again. How to replace Defrost Timer. New defrost timer (will know in two to three weeks if that fixed the problem) watched video and it made it so easy to do! Knew exactly what I was doing when I got into it. Took less than 15 minutes to replace defrost timer. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes