Refrigerator Leaking Water Inside? Defrost Drain and More
Refrigerator leaking water inside? Unblock the defrost drain, check the door gasket, water line and crisper drawers, and know when to call a technician.
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Refrigerator leaking water inside usually points to a blocked or frozen defrost drain: meltwater from the defrost cycle cannot run away, so it pools on the shelf or under the crisper drawers. Other causes are a torn door gasket, a leaking water line, condensation from warm food, or drawers that are overfull. Unplug the fridge, warm the drain and clear the blockage.
Refrigerator leaking water inside: the quick answer
Every automatic-defrost fridge melts frost off the evaporator periodically and drains the water through a small tube to a pan at the back. If that tube clogs with food or freezes, the water backs up and runs into the fresh-food compartment. Clearing the drain usually ends the leak.
| Quick facts: refrigerator leaking water inside | |
|---|---|
| Time needed | 30 to 60 minutes, plus thawing time |
| Tools | Warm water, turkey baster or syringe, pipe cleaner, towels |
| Difficulty | Easy to moderate |
| Safety | Unplug the fridge before reaching into the freezer or back panel |
Where the water shows up
| Where | Likely cause | Fix |
|---|---|---|
| Pool at the bottom of the fresh-food section | Clogged or frozen defrost drain | Clear the drain |
| Water under the crisper drawers | Blocked drain tube or drawer condensation | Clean the drain, avoid overfilling drawers |
| Ice at the back of the freezer, water in the fridge | Frozen drain | Thaw and clear |
| Water on the door or seal | Torn or dirty door gasket | Clean or replace the gasket |
| Water near the ice maker or dispenser | Leaking supply line or inlet valve | Check the water line |
| Water on the floor outside | Overflowing drain pan or a leaking line | Check the pan and line |
Clear the defrost drain
- Unplug the fridge and move food into coolers.
- Remove shelves and drawers and the freezer back panel if it unscrews easily.
- Find the drain hole at the bottom centre of the freezer or fresh-food back wall.
- Flush warm water into the hole slowly with a turkey baster or syringe until it runs freely.
- Clear debris from the hole with a pipe cleaner or flexible wire. Never use sharp tools near the evaporator.
- Check the drain pan under the fridge for overflow and clean it.
- Reassemble, plug in, and watch for new pooling over the next day.
Why the drain keeps freezing
A heater near the drain stops it freezing. If that defrost heater or its thermostat has failed, the drain freezes again and again. A leaking door gasket lets warm humid air in, which also builds frost. If your refrigerator leaking water inside problem returns after a clear-out, the defrost system may need a technician.
Other causes to rule out
- Overfilled crisper drawers can block drainage and cause condensation. Remove some produce.
- Hot food put in the fridge produces extra moisture.
- A door left open or not sealing lets in warm air, which condenses.
- Water filter and supply line problems can leak behind the fridge into the compartment.
How to tell drain water from condensation
Water from a clogged drain usually collects at the back and bottom of the compartment and under the crisper drawers, and it returns after each defrost cycle. Condensation from overfull drawers or warm food shows up as droplets on the drawer walls and shelves. To tell them apart, wipe everything dry and watch where water first returns over the next day.
When to call a professional
Call if the drain refreezes, if the leak comes from the water line or inlet valve, if you see ice build-up that returns, or if the fridge is also warm.
Prevention
Flush the drain with warm water every few months, keep the gasket clean, and avoid putting hot food in uncovered.
Refrigerator leaking water inside: where it pools
Water that pools at the back or the bottom of the fridge cabinet usually comes from a clogged defrost drain. The drain carries melted frost from the evaporator to a pan, and a blockage lets water spill onto the floor of the fridge compartment. Check the drain opening at the back of the freezer and clear any debris with a soft brush. Water that leaks from the door or the seal is a different problem, usually fixed by cleaning or replacing the gasket.
A refrigerator leaking water inside the cabinet after a defrost cycle is the classic sign of a clogged drain.
Related reading
- Why Is My Freezer Icing Up? Causes, Defrost and Fixes
- Fridge Not Cold Enough? Find the Cause and Keep Food Safe
- Ice Maker Not Making Ice? Causes and Fixes by Symptom
- How to Replace a Refrigerator Door Gasket in 8 Steps
Browse all appliance repair guides, or find an appliance repair technician in your city from the appliance repair directory.
Frequently asked questions
Why is my refrigerator leaking water inside?
The usual cause is a clogged or frozen defrost drain, which makes meltwater back up and pool in the compartment. A torn door gasket, overfull crisper drawers or a leaking water line are other possibilities.
How do I unclog a refrigerator defrost drain?
Unplug the fridge, find the drain hole at the back, and flush warm water through it with a turkey baster or syringe. Clear debris with a pipe cleaner. Check the drain pan and watch for pooling the next day.
Why is there water under my crisper drawers?
It may be a blocked drain tube, condensation from moist produce, or an overfilled drawer that stops air flowing. Clear the drain, avoid overloading the drawers and check that the drawer seals properly.
Can a bad door seal make a refrigerator leak water inside?
Yes. A torn or dirty gasket lets warm, humid air in, which condenses and can freeze on the evaporator. When the frost melts the extra water can overload the drain. Clean or replace the gasket.
Why does my defrost drain keep freezing?
A failed defrost heater or thermostat, or a poorly sealing door, can cause the drain to freeze repeatedly. If cleaning does not help for long, a technician should test the defrost system.
Could the ice maker or water line cause a refrigerator leaking water inside?
Yes. A loose or cracked water line, a leaking inlet valve or a faulty filter housing can drip into the compartment. Look for wetness near the back and the ice maker, and shut off the water supply if you find a leak.
Is it safe to use hot water in the defrost drain?
Use warm, not boiling water. Boiling water can crack plastic parts. Add it slowly with a syringe or baster, and unplug the fridge first. Never use sharp tools near the evaporator coils.
When should I call a technician for a refrigerator leaking water inside?
Call if the drain freezes again soon after clearing, if the leak comes from the water line or valve, if ice keeps forming, or if the fridge also fails to stay cold.
How often should I clean the defrost drain?
Check it a couple of times a year, or whenever you see pooling water or ice at the back. Flush it with warm water and a turkey baster, then check that the drain pan is clean.
Can a full fridge cause water to leak inside?
Overpacking can block the vents and the drain, causing condensation and ice that melts and pools. Leave space for air to circulate and keep the door seals clean. A frozen or clogged drain is more likely, so clear the drain at the same time.
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