The short answer
Water from a Commercial Cool refrigerator comes from one of three places: melted frost that should have drained away, condensation that should never have formed, or a supply connection on plumbed models. Each leaves the water in a different place, so the first job is to find the puddle rather than to guess the part. The WUF family as the table shows it is one model number. Work from the full number on the rating plate rather than from the family letters when you order anything.
What you actually observe
- Water under the crisper or along the cabinet floor — The signature of a blocked defrost drain. The water has nowhere to go and finds the lowest point inside.
- Puddle on the floor at the front — Usually the same fault after the water has overflowed the liner, especially if the cabinet leans forward.
- Water at the back underneath the unit — The drip tray, a cracked tray, or a connection on a plumbed model.
- Ice sheet across the bottom of the compartment — A drain that is frozen rather than blocked. The same fix, done with the unit off.
- NEAR MISS — condensation on the outside of the door — Humid room and a cold panel. Not a leak, though it can point at a seal that is losing the argument.
Where the water usually comes from
- A drain that cannot take the water — Ranked first on this family: debris in the hole, or ice in the tube below it. The defrost cycle keeps making water regardless, so the fault repeats until the drain is cleared.
- A tray that cannot hold or evaporate it — Second: cracked, displaced by a move, or simply overwhelmed in humid weather. The water reaches the floor without ever appearing inside the cabinet.
- A seal that lets humid air in — Third: the air condenses on cold surfaces, and on a cabinet in a humid room there can be more of it than the drain was ever meant to carry.
- A supply connection on a plumbed model — Last, and the only one that runs continuously rather than cyclically. It is also the one that does the most damage fastest.
Check in this order, and why that order
- Time the leak against the defrost cycle — Water that appears every several hours rather than continuously is defrost water, and that points at the drain rather than the supply.
- Dry everything and lay paper down — A sheet of kitchen paper under the cabinet and another inside tells you where the water arrives first, which no amount of description can.
- Paper-test the door seal — A gasket that no longer grips at one point lets in the humid air that becomes the water you are mopping.
- Clear the drain gently — Warm water flushed down the drain hole, not a wire pushed hard. The tube below it is soft plastic and it is easy to puncture.
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. Water on the floor and electrical parts at the back of the cabinet are a bad combination, so unplug the unit before mopping underneath or pulling it out. Do not clear a frozen drain with a metal wire or a heat gun: the drain tube is soft plastic and a punctured tube leaks permanently and invisibly.
Models this page covers
Reference| Model number | Family key |
|---|---|
| WUF13* | commercial-cool:refrigerator:wuf |
Where the owner line is on these models
Stop and call where the leak is continuous rather than cyclic on a plumbed model, where the cabinet has water at the back around electrical parts, or where clearing the drain has not held. Everything before that — finding the puddle, emptying the compartment, flushing the drain with warm water, levelling the unit, checking the tray and the gasket — is honest owner work and is exactly what a technician would do first. Because the WUF line is a single model number, a technician can look the parts up before arriving, which is worth mentioning when you call.
Other WUF problems we cover
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
