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Drain Freezing Troubleshooting Guides

Published FixGraph guidance for diagnosing and responding to drain freezing.

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Sub-Zero BI-36U/O Drain Trough Keeps Freezing: Safe Checks and Service Boundary

A recurring ice block in the refrigerator drain trough of a Sub-Zero BI-36U/O can leave water under the drawers or on the floor, but it does not identify a clogged tube, gasket leak, airflow issue, or failed defrost component by itself.

Sub Zero · Refrigerator · Appliance Repair