Keith B Erie , PA January 24, 2021 Appliance: Whirlpool Freezer WZF34X16DW00 Whirlpool Freezer Wzf34x16dw00: Our Whirlpool freezer would automatically switch and stay in the fast freeze mode. How to replace Control Board. Replaced the Cntrl-Elec board. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes