Customer Questions and Answers for Refrigerator Defrost Timer by Whirlpool

Tom, Check and make sure the doors close and seal properly, remove the crisper bins and check the floor of the refrigerator compartment for any debris (plastic wrappers, lettuce leaves, etc.) especially the rear corners, where the air tunnels are located. Check the top shelf of the refrigerator, make sure there's nothing large or tall in the center of the shelf blocking the air flow to the front of the compartment. If all's OK remove the grill cover in the center of the rear air tunnel "pumpkin" and check the auto damper WP67003410 / 8170845 Control, Damper, to see that the damper isn't stuck open.