The short answer
Read the machine before you read the manual — on a Black+Decker dryer, a dryer that does nothing is usually reporting a dead outlet or a door that is not latching. The outlet, the door catch and the filters are all free to check and cover most of these; the belt and the motor are where a technician takes over.
What you actually see
- It hums but does not turn — A hum without rotation is a motor being asked to start against something.
- It runs for a moment then stops — A short run then a stop is a protection device cutting in.
- The breaker trips when it is switched on — A trip on start is a fault the protection is reporting, and it ends owner checks.
Causes, ranked for this dryer
- No power at the outlet — Leads the ranking — a compact dryer is more often on an extension lead or a shared utility circuit than a full-size machine, which raises this cause here specifically. Where this checks out clean, treat the next entry as the working theory rather than a possibility.
- Door not latching so the switch never closes — Close behind — a dryer will not start with the door believed open, and the catch is a small plastic part that wears until it no longer closes the switch. A clean result here does not just remove one part; it removes everything that depends on it.
- Start button or control not latching — A step down — it is common on machines with membrane panels, where the printed track under the most-used button wears through. It is worth being sure about this one rather than half-sure, since everything after it assumes a verdict.
What to check, in order
- First — the outlet itself — Plug a lamp or a charger into the same outlet. Nothing there means the fault is upstream of the appliance.
- Second — the door catch and switch — Look at the catch and the striker for wear or a missing piece. Both are visible with the door open.
Checks an owner can do safely
- Step 1. Turn the drum by hand — With the machine unplugged, open the door and turn the drum. Free spinning with no resistance suggests a broken belt.
Tools: noneAbout 5 min
- Step 2. Inspect the cord end to end — Unplug the machine and run the cord through your hand from plug to cabinet, feeling for flat spots and heat damage at the plug.
Tools: noneAbout 10 min
- Step 3. Check the breaker and any protection device — Look at the panel and at any protection device on the circuit, and reset once. A device that trips again is reporting a real fault.
Tools: noneAbout 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. A machine that overheats repeatedly after the filters and the vent path are clear has a control or a thermostat fault, and both are measured rather than inspected.
Sources
General guidance- The Control of Hazardous Energy (Lockout/Tagout) — OSHA 1910.147 and manufacturer service manuals, fetched
- Article 210 — Branch Circuits — NFPA 70 (National Electrical Code), fetched
What this page does not cover
Generalized by design. Everything here holds across Black+Decker dryers, 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.
