If you notice water leaking from underneath a refrigerator, the first goal is to stop further damage: protect your floor, reduce risk of electrical issues, and then identify the likely source. In many cases, the leak is tied to a drain system issue, especially in models with an automatic defrost cycle.

Immediate safety steps come first. Unplug the refrigerator if water is near outlets, power cords, or the floor is wet enough to pose risk. Place towels or a shallow tray under the front to catch drips, and check how much water is collecting and where it appears.

Common causes

1) Clogged or frozen defrost drain is one of the most frequent reasons for water under a fridge. During defrost, melted frost should flow through a drain channel into an evaporation tray. If the drain is blocked, water can overflow and leak out underneath.

2) Ice maker or water dispenser leak can also lead to pooling water. This is more likely if the water leak starts after using the ice maker, if you hear hissing, or if there’s moisture behind the fridge where the supply line runs.

3) Misaligned or damaged water line can cause slow leaks. Over time, vibrations or movement during cleaning can loosen a connection or kink tubing, allowing water to escape.

How to troubleshoot safely

Start by checking the area under and behind the refrigerator for signs of wetness patterns. If the leak seems to correlate with the fridge’s defrost cycle (often changes in moisture appear on a schedule), focus on the defrost drain. If the pooling increases after ice-making, inspect the ice maker and water supply connections.

Next, remove the access panels you can reach safely (as described in your user manual) and look for standing water in drainage areas. If you find a blockage in the defrost drain area, many owners clear it using warm water and gentle tools designed for appliance drainage—avoid sharp objects that can damage internal components.

If the refrigerator has a visible evaporation tray, confirm it’s present and seated correctly. Some leaks occur when the tray is cracked, missing, or not properly aligned, causing overflow under the unit.

When to stop and call a professional. Contact a qualified technician if you see a damaged water line, signs of electrical exposure, repeated leaks that return soon after cleaning, or any frost buildup that suggests a refrigeration/defrost system failure. If your refrigerator is still under warranty, professional service can help prevent voiding coverage.

Finally, prevent recurrence by keeping the drain pathway clear and ensuring the refrigerator is level. A slight tilt can disrupt water flow toward the intended drain, leading to overflow and new leaks.