What action should be taken to prevent potential freeze-ups in ice makers?

Lifting the lever arm is an important action to prevent potential freeze-ups in ice makers because it disconnects the ice maker from its power source. This can be particularly useful during periods of abnormally low temperatures, either in the environment or within the refrigerator itself, which can lead to freezing of water within the ice maker components. By lifting the lever, you ensure that the ice maker does not attempt to produce ice when conditions are not conducive to proper operation.

This action temporarily disables the ice-making process, allowing the system to prevent ice from forming in undesired locations, which could cause blockages or damage. It also provides an opportunity to monitor the area and adjust conditions, such as increasing surrounding temperature or insulation, to mitigate freeze-up risks.

In contrast, other options do not directly address the problem of freeze-ups. Increasing water pressure may lead to overfilling or increased stress on components, while decreasing refrigerator temperature could worsen freeze-up issues. Heating the water line is a workaround that might be used but is not a standard preventive measure linked to ice maker operation.