What this usually turns out to be
Water under a refrigerator is usually defrost water that has not reached its drain, not a supply leak. The blocked drain is the common answer, and the puddle position tells you far less than most people assume. On the REF models the defrost drain and the supply connection sit at opposite ends of the cabinet, so establishing which one you have before moving anything saves the whole second half of this list.
Where the water shows up
- Water in the drain pan overflowing at the back — A pan that is cracked, dislodged or simply receiving more water than it can evaporate.
- A puddle on the floor at the front of the cabinet — A front puddle is the least informative symptom on the page, because almost every internal leak arrives there eventually.
- Water pooling under the crisper drawers — Water sitting under the crispers is the signature of a defrost drain that has stopped taking it away. It collects at the lowest point inside the cabinet.
- Ice building on the freezer floor or under the drawer — Defrost water refreezing where it stalls. It is the same fault as the puddle, caught one stage earlier.
- NEAR MISS — Water inside but the cabinet has also gone warm — Water inside a cabinet that has also gone warm is melting food, not a leak. Fix the cooling fault and the water stops.
What is behind it, ranked
- A blocked defrost drain — This single fault explains most interior water. The giveaway is water under the crispers or ice on the freezer floor, both of which sit directly below where the drain should have taken it. This ranks first on the REF models because the evidence for it is visible inside the cabinet before anything is pulled out. Against the brand-wide ranking, a blocked defrost drain has moved up past the ice maker fill system overfilling or misaligned on this platform.
- The water supply line or its fittings — The line feeding the ice maker and dispenser is under house pressure whenever the valve is open, so a loose compression fitting or a split line leaks continuously rather than in cycles.
- The drain pan cracked, dislodged or overflowing — It is easy to check at the same panel as the drain outlet, which is why it sits near the drain in this order.
- Door seal letting warm humid air in — Warm room air meeting cold surfaces condenses. A gasket that has hardened or a door left ajar puts a surprising amount of liquid water inside a cabinet over a day.
Check in this order, and why
- First — look for water under the crispers and ice on the freezer floor — Take the bottom drawers out and look underneath, then look at the freezer floor. Water or ice at either point sits directly below the drain that should have taken it.
- Second — check the supply line and its fittings at the back — Supply leaks announce themselves on a dry tissue. They are clean, continuous and they get worse rather than better.
- Third — find the drain pan above the compressor and look at it — Look at the pan and how fast it refills after emptying. Both facts say something about what is happening upstream.
- Fourth — test the door seal and look for sweating inside — Paper-test the gasket all the way round and look for condensation on the inner walls. Water plus frost is an air-leak story rather than a plumbing one.
Power off before panels come off
Safety
Power off, water off. Never use a heat gun or an open flame on a frozen drain or a plastic line, and never clear a drain with a metal probe: the tubing behind the panel punctures and a punctured sealed system is a far bigger repair than the leak. Have help before pulling a heavy cabinet out over a wet floor.
When to call a technician
Book a visit once you know which family of leak you have and cannot reach the source. Say whether the water is clean or has been sitting, whether it appears on a schedule or continuously, and what you have already cleared — that decides which parts come on the van.
Other faults on this appliance
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
