The short answer
On the Black Decker BUC freezer water where it should not be is usually meltwater with nowhere to go rather than a burst pipe. BUC is a broad code rather than one design, so the short sequence below holds across the whole model list, and all of it is owner work with a torch and a towel.
What you observe
- Water in the base of the cabinet under the contents — Meltwater that has nowhere to go.
- A puddle on the floor at the front — The internal pool has run out past the seal, or a drain plug has been left out after a defrost.
- Beads of water on the walls and the seal — Condensation: humid air reaching a cold surface, spread evenly rather than trailing from a point.
- Ice growing in one corner or under a basket — A leak that freezes where it lands.
- NEAR MISS — water only after a power cut — That is a partial thaw and refreeze, not a leak.
Causes, most likely first on the BUC family
- The drain outlet or its plug — First on this family — BUC is a broad code rather than one design — and the outlet is a narrow path that must carry every defrost past whatever has fallen into it. A silted or frozen drain, or a plug left out after a defrost, produces every version of this fault.
- Lid or door seal letting humid air in — Second: a gasket that has taken a set admits moist air continuously, which condenses, runs down the walls and collects in the base. The wetness is spread rather than sourced at one point.
- Frost that has been allowed to build and then melted — Third. Thick frost that partially thaws during a warm spell or a power cut releases far more water than the drain was designed to pass at once.
- Levelling and the cabinet standing out of true — Last. A cabinet tilted the wrong way sends its meltwater to the front instead of the outlet, which turns a working drain into a floor puddle.
Check in this order, and why
- Find the highest wet point — First, always: water runs down, so the top of the trail is nearer the cause than the pool at the bottom.
- Check the drain outlet and its plug — Second because it is the top cause and because flushing it is both the fix and the test.
- Close the lid on a sheet of paper all the way round — Third: no drag anywhere means a gap, and a gap explains beaded water on every wall.
- Check the cabinet is standing level and slightly back — Last of the free checks — it decides which way the water goes once the drain is clear.
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, and you are working with water beside a live cabinet. Never chip ice away with a blade: the tubing behind it is thin-walled and a puncture ends the appliance. Do not use a flame or a heat gun on a frozen drain. Dry the floor before moving anything heavy.
Models in the BUC family
Reference| Model number | Family key |
|---|---|
| BUC1100XB | black-decker:freezer:buc |
| BUC1100XS | black-decker:freezer:buc |
| BUC1100XW | black-decker:freezer:buc |
| BUC1400XS | black-decker:freezer:buc |
| BUC1700XB | black-decker:freezer:buc |
| BUC1700XS | black-decker:freezer:buc |
| BUC1700XW | black-decker:freezer:buc |
| BUC2100JB | black-decker:freezer:buc |
| BUC2100JS | black-decker:freezer:buc |
| BUC2100JW | black-decker:freezer:buc |
| BUC2120M* | black-decker:freezer:buc |
When to call a technician
Call when the drain has been cleared and flushed and water still collects, when the seal needs replacing and the lid no longer sits true, or when water has reached an electrical part. Call sooner if the leak has been running long enough to reach flooring or a neighbouring unit — by then the appliance is no longer the expensive part of the problem.
Other faults covered for the BUC family
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