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While the blocked defrost drain is the most overlooked reason, it’s not the only one. Here are a few other common causes of water leaking from a fridge:
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Cracked or Overflowing Drain Pan: If the drain pan under the fridge is cracked or overflowing due to excess condensation, water may leak onto the floor.
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Improper Fridge Leveling: If your refrigerator isn’t level, water may not flow properly to the drain and can spill out instead.
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Damaged Door Seals: When the door seals are worn out or dirty, warm air can enter the fridge, causing excess condensation that may eventually lead to leaks.
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Clogged or Frozen Water Supply Line: For fridges with ice makers or water dispensers, a clogged or frozen line can cause pressure buildup and leaks.
How to Fix and Prevent the Problem
If you suspect a blocked defrost drain, here’s what you can do:
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Unplug the fridge and locate the drain hole (usually at the back of the freezer compartment).
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Use hot water and a small funnel or turkey baster to flush out any blockage.
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Check the drain pan under the fridge to make sure it’s intact and clean.
To prevent future leaks, clean the defrost drain every few months, ensure the fridge is level, and check seals regularly. If you have a water line connected to your fridge, inspect it for signs of damage or ice buildup.
Final Thoughts
Fridge leaks are frustrating, but often the solution is easier than you think. A blocked defrost drain may be small and hidden, but it can lead to big problems if ignored. By understanding this overlooked cause, you can stop the leak and keep your kitchen dry — without calling in a repair technician.
