The short answer
Read the machine before you read the manual — on a Black+Decker refrigerator, a puddle outside the cabinet is the tray, the tube or a fitting, not the drain hole inside. All three are reachable with the unit unplugged and pulled out; a fitting that will not stop weeping is a plumbing call.
What you actually see
- Water running down the inside back wall — Streaks on the rear panel are normal during a defrost and abnormal if they reach the shelves.
- Damp at one corner of the door frame — Localised damp on the frame is condensation from a seal leak, not a plumbing leak.
- Wet insulation smell without visible water — Water trapped in the base pan produces a smell before it produces a puddle.
Causes, ranked for this refrigerator
- Drip tray overflowing or displaced — Top of the list: moving the unit is what displaces it, so a leak that starts after a move belongs here before anywhere else. Confirm it before moving on, because the entries below read differently once it is ruled out.
- Blocked or split drain tube behind the cabinet — Next: the tube from the trough to the tray can crack with age or be crushed when the cabinet is pushed back, and then it drains onto the floor. Rule it in or out properly here; a maybe at this position costs an hour further down.
- Water supply connection weeping — Then: it applies only to plumbed units, which is why it ranks below the causes every unit can have. Getting a definite answer here is worth more than a quick look at the three below it.
What to check, in order
- First — the tray under the cabinet — Unplug the unit, reach under the back and confirm the tray is seated and sitting level under the drain tube.
- Second — the drain tube — Check that the tube ends over the tray rather than beside it. A tube that has slipped is the whole fault.
Checks an owner can do safely
- Step 1. Clear the defrost drain — Locate the small hole low on the rear wall inside and flush it with warm water from a baster or syringe until it runs freely.
Tools: turkey baster or syringe, warm waterAbout 20 min
- Step 2. Check the cabinet leans slightly back — Open the door a hand-width and let go. It should close itself. If it swings open, wind the front feet down.
Tools: adjustable spanner or handAbout 15 min
- Step 3. Inspect the drain tube — Follow the tube from the cabinet to the tray, looking for a split, a crush point or an end that has slipped off the tray.
Tools: flashlightAbout 10 min
Before you open anything
Safety
Isolate the water at the valve and the power at the breaker before starting. A capacitor can hold a charge after the power is off. If water has run under the cabinet or reached the outlet, leave it isolated and have the circuit checked before it is used again.
When this becomes a service call
The line is not about confidence, it is about what the next step needs. Water that has reached the base of the cabinet or the outlet is an electrical question before it is a plumbing one; stop, isolate the circuit and have it looked at.
Sources
General guidance- The Control of Hazardous Energy (Lockout/Tagout) — OSHA 1910.147 and manufacturer service manuals, fetched
- Refrigeration and Food Safety — USDA Food Safety and Inspection Service, fetched
Nearest pages
What this page does not cover
Generalized by design. Everything here holds across Black+Decker refrigerators, which is the reason it stops short of model detail: a specific page will beat this one on wiring, on part numbers and on anything a service manual would list. Follow Related pages to reach the page written for a single family or model.
Related pages
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
