How to level a washing machine so it stops walking.

Why a machine walks.

A drum spinning at 1,200 to 1,600 rpm never holds a perfectly balanced load. Wet washing clumps to one side, and that offset mass throws a rotating force outward many times a second. The suspension inside the cabinet is built to absorb it, and it does, right up until the cabinet itself can move.

If one foot is not carrying weight, the machine has somewhere to go. Each rotation nudges it a fraction of a millimetre, the nudges all land in the same direction, and after twenty minutes of spinning the machine has travelled half a metre and is leaning on the tumble dryer. The noise is the symptom people notice; the real cost is the load that ends up going through the drum bearings instead of into the floor.

The same fault also throws off the machine’s own out-of-balance detection. Many machines abandon a high-speed spin and re-tumble the load when they sense excessive movement, so a badly seated machine often reports long cycles and clothes that come out wetter than they should.

Rock matters more than tilt.

This is the part most guides skip. A washing machine can read dead level on all axes and still walk, because level and stable are not the same measurement.

Four feet on an uneven floor behave like a four-legged chair: three of them define a plane and the fourth may or may not touch. If the floor is slightly twisted — very common on tiles, and almost guaranteed on a suspended timber floor — the cabinet can sit at zero degrees while resting on only three feet. The free foot is the one that lets it move.

So do the two checks in this order. First take the rock out, by pressing down on each pair of diagonally opposite corners in turn and winding out whichever foot lets the machine tip. Then level it. Doing it the other way round means your careful levelling gets undone by the foot you have to move afterwards.

Before you touch a foot.

Two things cause dramatic walking that no amount of levelling will fix, and both are worth ruling out first.

Transit bolts

A new machine ships with three or four long bolts through the back panel that clamp the drum to the cabinet so it cannot swing in transit. They must come out before the first wash. A machine still carrying them has no working suspension at all: the drum’s imbalance is transmitted straight into the cabinet, and it will hammer and move violently. If your machine is newly installed and the noise is startling rather than merely annoying, switch it off at the wall and look at the back panel before anything else.

The feet are wound too far out

A machine is most stable sitting as low as its feet allow, because a long extended foot is a lever. If someone has wound all four feet most of the way out to raise the machine, wind them back in and start from the bottom, raising only the individual feet that need it.

Levelling it, step by step.

You will want an adjustable spanner or the plastic wrench that came with the machine, and a phone with the leveler open. Switch on the centre bullseye, which reads both axes at once, and set the range to ±2°.

1. Empty the machine and pull it clear. A drum with water in it will not read honestly, and you need access to all four feet. Mind the hoses as it comes forward.
2. Zero the phone first. Rest it on a surface you already trust and tap Set Zero, so you are measuring the machine rather than your handset’s factory bias. The calibration section of the main guide covers why this matters.
3. Put the phone on the rear top plate, over the drum. Not on the lid, which flexes and often sits proud of the frame, and not on the sloped control panel. The flat pressed steel behind the controls is the surface that actually tracks the cabinet.
4. Take the rock out. Press the front-left and rear-right corners, then the front-right and rear-left. Any movement means one foot is short. Wind it out a quarter turn at a time until both diagonals feel solid.
5. Level the front feet. Watch the bullseye and wind the low corner up. A quarter turn is typically 0.2 mm of height, so adjustments are finer than they feel.
6. Lock the nuts. Nearly every adjustable foot has a nut that must be run up tight against the underside of the cabinet. Skipping this is why a machine that was level last month is not level now: vibration slowly unwinds an unlocked foot.
7. Re-read, then spin-test. Tightening the locknuts often shifts the reading slightly. Check the bullseye once more, push the machine back into place, and run a spin with a couple of towels in it.

Self-levelling rear feet.

A good number of machines — several Bosch, Siemens, Neff and Beko models among them — have rear feet you are not supposed to adjust by hand at all. They are linked by a cable or a rocking bar under the base, and they set themselves.

If yours has them, the procedure is different and slightly odd: with the front of the machine lifted a few inches off the floor, let it back down firmly onto the floor. The rear feet drop to meet the surface and lock in that position. Then level the front feet by hand as usual. Forcing a self-levelling rear foot with a spanner will strip it.

You can tell them apart by looking. A conventional foot is a threaded stud with a hex flat and a locknut. A self-levelling foot has no locknut and usually a visible cable or lever running inboard from it.

How level is level enough.

Manufacturers are typically less demanding than people expect. Most manuals ask for the machine to be within about 1° — some phrase it as no more than 10 to 20 mm of fall across the width of the machine. That is a generous target, and hitting it is not difficult.

Aim for under 0.3° because it costs you nothing to do so, but do not chase hundredths. A phone is honestly a ±0.2° to ±0.5° instrument once calibrated, so a reading of 0.05° is not a meaningful improvement on 0.2° — it is inside the noise. The accuracy notes explain where that limit comes from.

And trust the rock test over the number. A machine reading 0.8° with all four feet planted will behave better than one reading 0.1° that tips when you lean on a corner.

When the floor is the problem.

Sometimes the machine is fine and the floor is not. Two cases come up repeatedly.

Suspended timber floors

A machine in an upstairs room or on a joisted ground floor sits on a surface that flexes and resonates. Levelling still helps, but the floor deflects under the load and can hand energy back to the machine. Moving the machine closer to a wall, where the joists are better supported, often does more than any adjustment to the feet. A sheet of 18 mm plywood spreading the load across several joists is the standard fix.

Tiles and vinyl

Hard smooth floors give the feet almost nothing to grip, so a small imbalance turns into travel. Anti-vibration pads under each foot are genuinely effective here, and cheap. Fit them before you level, not after, since they change the height of every corner.

To check whether it is the machine or the floor, rest the phone directly on the floor where the machine stands, in each of the four foot positions. A floor that reads consistently across all four is flat and the fault is in the feet; readings that disagree by more than half a degree tell you the floor is twisted, and that you should expect to be winding one foot out a long way. The floor survey guide goes through that properly.