Customer Questions and Answers for Ice Maker by Whirlpool

Hello Aldo, First off, for maximum ice production, the freezer compartment should never drop below zero. This will cause a long harvest resulting in less ice production. Next, the water pressure should be checked because many water valves that get changed out do not correct the issue. You see, the water valve is closed by the water pressure. If the water pressure is low, it takes the water valve too long to close and the ice maker will over fill. If the water pressure is sufficient and no water supply lines are crimped, the water valve is probably corrupted by sedimentation and mineral deposits, which also will cause it to close too slowly, causing an over fill. There are two water valves on many models. The first is referred to as the filter valve WP12544002. The second valve is usually referred to as the secondary valve 12002193. Most of the time, the secondary valve is the valve at fault, but the filter valve can sometimes be the cause. This is a leap of faith. If you are going to change them one at a time, I would always change the secondary valve first. You can troubleshoot the valves if the model has enough water line from the valve to reach into a bucket. This is the only way to truly test a water valve because the voltage getting to it and the correct resistance in the valve windings do not tell you if the valve is mechanically opening and closing all of the way as they should.