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Where the puddle appears tells you where water leaves the machine, which is not where it started. Work from the sources rather than from the floor, and the diagnosis takes minutes rather than an afternoon. On the ZS 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.
What you are actually seeing
- A puddle on the floor at the front of the cabinet — The most reported symptom and the least informative: the base tray channels water forward whatever its source.
- Water pooling under the crisper drawers — Pooling beneath the drawers is the classic blocked-drain finding, and it is visible without moving the machine an inch.
- Ice building on the freezer floor or under the drawer — Ice on the freezer floor is the same fault caught one stage earlier: meltwater stalling before it reaches the drain and freezing where it stands.
- NEAR MISS — Water inside but the cabinet has also gone warm — If the temperature has slipped as well, read the cooling page — the water is a consequence of that fault.
Causes, most likely first
- Door seal letting warm humid air in — It costs nothing to test with a sheet of paper and it removes a whole class of confusing evidence. It leads because it explains more leaks than everything below it together, and confirming it needs no tools. Where the brand-generic page leads with the ice maker fill system overfilling or misaligned, this family leads with door seal letting warm humid air in, since that is the check the access here makes cheapest.
- 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.
- 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.
Check in this order, and why
- First — 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.
- Second — 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.
- Third — 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.
Power off before panels come off
Safety
Unplug the refrigerator or switch off its breaker before any panel comes off, and shut the house water valve before touching a supply fitting. A capacitor can hold a charge after the power is off. Water on a kitchen floor beside a powered appliance is a shock risk in its own right — mop it up before you start work rather than after.
Where the owner job ends
Call when the drain will not clear from the freezer side, when a supply fitting keeps weeping after being tightened, or when water has been running long enough to reach flooring or a cabinet carcass. Those are the cases where speed is worth more than saving a visit.
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Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
