The short answer
The causes of a leak here are ordinary, but the consequences are not: water inside a furniture housing damages the carcass before it ever reaches the floor. Act on the first sign rather than watching it.
What you actually see and hear
- Water pooling inside the fridge compartment — Blocked defrost drain at the back of the compartment.
- A damp or swelling plinth — Water in the housing. Act on this promptly.
- A damp patch in the unit beside the appliance — A supply fitting weeping inside the joinery.
- Water on the floor at the plinth line — The housing has already filled and is overflowing.
- Water with the contents warming — A cooling failure with a leak attached.
Causes, most likely first on this machine
- Blocked defrost drain — First. The small hole at the back of the compartment blocks with crumbs and backs up inside.
- Evaporation tray displaced or overflowing — Second, and it discharges straight into the housing rather than onto the floor.
- Supply or icemaker fitting weeping — Third, and the one that quietly destroys furniture because nobody sees it.
- Door seal or door alignment letting humid air in — Fourth. More moisture in means more condensation to carry away.
- Cabinet not level in its housing — Fifth. A forward lean sends water to the door rather than the drain.
- A genuine internal fault — Last, and uncommon.
Check in this order, and why
- Check the contents are still cold — It separates a nuisance from a cooling failure.
- Find the drain hole at the back of the compartment — The usual cause and the easiest to clear.
- Feel the plinth and the base of the neighbouring units — Damp chipboard is the warning this layout gives you.
- Check the appliance door closes fully behind the furniture door — A misaligned bracket feeds condensation.
What an owner can safely check
- Put a thermometer in the cabinet and read it after a day — Cold contents mean water; warm contents mean cooling.
Tools: thermometerAbout 1440 min
- Clear the drain hole with warm water and a cotton bud — Never push anything metal into it.
Tools: cotton bud, warm waterAbout 25 min
- Check the plinth and the neighbouring unit base for damp — This is how a built-in leak announces itself.
Tools: torch, clothAbout 20 min
- Clean the door seal and test it with a sheet of paper — Less humid air in means less water to drain.
Tools: cloth, paperAbout 20 min
- Turn off the isolating valve in the adjacent unit if a supply fitting is weeping — Stops the damage while you wait.
Tools: torchAbout 15 min
- STOP HERE before withdrawing the cabinet from its housing — Two people, plumbing attached, live electrics.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel - a capacitor can hold a charge after the power is off. An integrated cabinet is usually fed from a socket inside the adjacent unit, so find and use that socket rather than guessing at the breaker, and confirm the appliance is dead before touching anything. Never remove the furniture door or the cabinet's fixings while the appliance is live, and never chip ice from the interior with a metal tool.
When to call a technician
Call promptly for any damp inside the housing or a swelling plinth, because on a built-in installation the joinery absorbs the water long before you see a puddle and it will not dry out on its own. Close the isolating valve in the adjacent unit first if a supply fitting is the source. Call urgently if the contents are warming as well. Clearing the drain hole is worth trying yourself; anything behind the cabinet is not.
Nearest pages of this class
What this page does not cover
This page is written for the integrated refrigerator class, not for one family or model line. Where a brand- or model-specific page exists for your unit it is the more specific answer and it is linked above, so go there first if your machine is named. What is deliberately not here: fan and thermostat part numbers, hinge and slide kit references, cabinet aperture dimensions and refrigerant charge, all of which differ by family and belong on the page for that family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
