The short answer
Read the machine before you read the manual — on a Black+Decker refrigerator, a rattle is contact between two things that should not be touching, and it is almost always outside the sealed system. A rattle is an owner fix in the overwhelming majority of cases; the exception is a fan blade that has worn its bearing rather than picked up debris.
What you actually see
- A grinding or scraping from the freezer section — Ice touching a fan blade makes a sound that changes as the blade cuts into it.
- A hum you can feel through the floor — Vibration transmitted into a floor is usually the cabinet, the feet or the surface under it rather than the machine.
- A knock when the compressor shuts off — A single knock at shutdown is the compressor rocking on its mounts and settling.
Causes, ranked for this refrigerator
- Something touching the back of the cabinet — Top of the list: on a small unit the back is crowded, so any item stored behind or beside the cabinet ends up in contact with a part that vibrates. Confirm it before moving on, because the entries below read differently once it is ruled out.
- Drip tray loose in its channel — Next: the tray is a light plastic part sitting near the compressor, and once it slides out of its channel it buzzes against the frame. Rule it in or out properly here; a maybe at this position costs an hour further down.
- Cabinet not level or resting on three feet — Then: weight is what damps vibration, and these cabinets do not have much of it, so a levelling error that a heavy unit would absorb becomes audible here. Getting a definite answer here is worth more than a quick look at the three below it.
What to check, in order
- First — the space behind the cabinet — Unplug the unit, pull it out, and look at what is touching the coil, the compressor and the tubing. Move each thing a finger-width clear.
- Second — the drip tray under the cabinet — Wedge a folded cloth beside the tray for a minute as a test. If the noise stops, you have found it.
Checks an owner can do safely
- Step 1. Level the cabinet — Push each front corner down in turn. Adjust the foot under any corner that moves until all four are loaded, then run the unit and listen again.
Tools: adjustable spanner or handAbout 15 min
- Step 2. Clear the space behind and beside — Unplug the unit and pull it out. Move anything touching the back panel, the coil, the tubing or the cord clear by a finger-width.
Tools: noneAbout 10 min
- Step 3. Turn the condenser fan by hand — With the unit unplugged, spin the fan blade. It should turn freely and evenly. Grit, drag or a wobble is the noise you are chasing.
Tools: flashlightAbout 10 min
Before you open anything
Safety
Nothing on this page is done with the appliance live. Unplug it or switch its breaker off, remember that a capacitor can hold a charge after the power is off, and leave every factory-fitted switch and cut-out exactly as you found it.
When this becomes a service call
The line is not about confidence, it is about what the next step needs. If levelling, clearing and reseating change nothing and the sound tracks the compressor exactly, the next step needs the machine running with panels off, which is not an owner task.
Sources
General guidance- The Control of Hazardous Energy (Lockout/Tagout) — OSHA 1910.147 and manufacturer service manuals, 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.
