The symptom matters more than the brand. If your washer fills, agitates, then drains but never spins the drum dry, the motor is almost certainly running — the power just isn’t reaching the basket. That rules out the control board and the motor itself in most cases and points straight at the mechanical link between motor and tub, or at a safety switch that’s telling the machine it isn’t allowed to spin.

If the drum is full of standing water and won’t budge, you have a drainage problem, not a spin problem. A washer won’t spin until it has drained, because the pump action and the spin cycle are sequenced together — the machine refuses to ramp the drum to spin speed while it’s sitting in water. So a clogged pump filter or kinked drain hose produces the exact same “won’t spin” complaint as a dead drive part. Always rule out drainage first — it’s the cheapest thing to check and the most common false alarm.

If the motor hums or runs but the drum sits dead still, that’s the classic broken-coupler or broken-belt signature. And if the machine is completely silent when it should be spinning — no hum, no attempt — you’re usually looking at a lid switch or door lock telling the control board the machine is unsafe to spin.

Newer washers usually tell you why they won’t spin if you read the code instead of guessing. Codes split into two groups: balance/load faults (not repairs) and motor or sensor faults (repairs).

Most older and mid-range top-load washers from the Whirlpool family — Whirlpool, Maytag, Kenmore, KitchenAid, Roper, Amana, Estate and others on the same direct-drive platform — use a small two-piece plastic coupler with a rubber center that connects the motor shaft to the transmission. The part is Whirlpool 285753A, and it’s deliberately the weakest link: when the machine is overloaded, the coupler is engineered to break first so it sacrifices itself instead of letting the motor or transmission burn out. That’s why overloading is the leading cause, and why the fix is cheap relative to the alternative.

The tell is unmistakable: the washer fills, drains, and the motor runs, but neither the agitator nor the drum moves, and you may find small pieces of black-and-white plastic under the machine. The coupler costs roughly $8–$15. If the clutch went at the same time — common after a long overload history — the matching clutch is Whirlpool 285785, usually paired as a kit. It’s about a 30–45 minute job for a technician.

Every washer has a safety interlock that prevents the drum from spinning while the lid or door is open. When it fails, the machine acts as if the lid is permanently open: it may agitate and drain but refuse to spin, or refuse to run at all. On Whirlpool and Kenmore top-loaders the part is lid switch 3949238 (newer OEM WP3949238), a $12–$25 part. Holding the actuator down with a screwdriver lets the cycle reach spin — which confirms the switch is the culprit, though it’s not a safe permanent fix.

On front-loaders the equivalent is the door lock assembly. Samsung’s WF-series front-loaders use door lock DC64-00519B, around $40–$50; when it fails the machine usually won’t start at all, sometimes throwing a door error. The locking solenoid wears out after thousands of cycles, or the plastic tabs crack. Same principle across LG and GE front-loaders: if the door won’t confirm locked, the control board won’t allow a spin.

Front-loaders and many newer top-loaders have a pump filter — a removable trap that catches coins, lint, hairpins and bra wires. When it clogs, water can’t leave fast enough, the machine never reaches the drain-complete state, and it parks with a wet drum and no spin. On Samsung front-loaders this is so common the machine throws a Ur or nd-type indication; you clear it by opening the small lower-front access panel, draining through the emergency hose, and twisting out the filter. This is a no-parts, no-cost fix in many cases — which is exactly why a technician checks it before quoting anything bigger. (A washer that won’t drain has the same root causes.)

A blocked or kinked drain hose does the same thing, as does a failed drain pump. When the pump itself is dead, you’ll often hear it humming without moving water — a parts-plus-labor repair rather than a clean-out.

Belt-driven washers — many front-loaders and some top-loaders — use a drive belt that stretches, glazes or snaps with age. A glazed belt produces a slow, weak spin and sometimes a burning-rubber smell; a snapped belt produces no spin at all while the motor runs freely. On direct-drive machines there’s no belt, but the clutch (Whirlpool 285785) wears down and produces the same slow, incomplete spin where clothes come out soaking wet rather than damp. (If yours is also leaking water, that can present alongside a weak spin.)

Front-loaders are aggressive about balance. An unbalanced load — one heavy towel, a single pair of jeans, a bunched-up sheet — makes the machine refuse to ramp to high spin speed to avoid walking across the floor. It keeps adding water and retrying, extending the cycle, and on Samsung machines you’ll see a Ur (unbalanced-load retry) indication. Redistributing the load by hand fixes it instantly. Check this before anyone touches a tool — it’s the single most common “won’t spin” call that turns out to be nothing.

Realistic figures including a standard service call applied to the repair, matching the labor band we quote on other washer jobs ($80–$250 depending on complexity and access).

Spin failures cluster around overloaded machines, and that’s not just anecdotal. Samsung’s own top-loaders were the subject of a 2016 recall covering 2.8 million high-efficiency units across 34 models built March 2011–October 2016, after the CPSC found that parts of the washer could detach or break apart during the spin cycle, with multiple injuries reported. The case later settled for $6.55 million.