Here's Why — and How to Fix It

This is the single most common — and most destructive — cause of violent vibration. Front-loading washers ship with 3–4 large transit bolts that lock the drum to the cabinet for transport. These bolts must be removed before first use. If they are left in, the drum cannot float on its suspension, and the entire machine shakes violently from the first spin. Continued use with shipping bolts installed will destroy the shock absorbers, suspension springs, drum bearings, and sometimes crack the drum spider. Sadly, this happens more often than people realise — especially when a washer is installed by a general handyman rather than a specialist, or when a washer is moved between apartments and the bolts are re-installed but never removed again.

Modern washers have load-balance sensors. If clothes bunch on one side of the drum, the washer will vibrate heavily, reduce spin speed, or abort the cycle entirely. A single heavy item — a bath mat, blanket, duvet cover, or pair of jeans — can cause severe imbalance because the drum cannot distribute its weight. Mixing bulky items (blankets) with small items (socks, underwear) is another classic mistake: the small items migrate into the bulky item and create a heavy, lumpy mass on one side of the drum.

A washer that is not perfectly level will rock, wobble, and progressively walk across the floor during spin. This is one of the most common causes of vibration in Saudi homes — particularly on tiled floors, where small grout lines and slight floor slopes cause one foot to sit higher or lower than the others. If the lock nuts on the leveling feet are not tightened against the base, the feet will slowly rotate out of adjustment over weeks of use — so a washer that was level at installation may not be level three months later.

Front-loading washers use shock absorbers (also called dampers or friction dampers) to control drum movement during spin. These are similar in principle to car shock absorbers. Over time — typically after 4–7 years — the dampers lose their resistance. A worn damper allows the drum to swing further and faster than it should, producing heavy vibration and banging, especially at high spin speeds. Worn dampers often leak a small amount of oil, which you can see on the floor beneath the washer or on the damper body itself.

Top-loading washers suspend the drum assembly from the cabinet using three or four suspension springs (or suspension rods on newer models). Over time, these springs lose tension, become uneven, or break. A weakened spring allows one corner of the drum to sag and swing, producing heavy vibration — especially during spin. If one spring is weaker than the others, the drum will tilt and vibrate asymmetrically. In coastal cities like Dammam and Khobar, high humidity accelerates corrosion of the spring metal, shortening their lifespan.

The drum bearings support the drum's spin shaft. When they wear out, the drum develops play (side-to-side movement), which produces vibration, a roaring or grinding noise during spin, and often a rust-coloured stain beneath the washer (from the worn bearing seal). Bearing failure is progressive: it starts as mild noise, then becomes vibration, then becomes a loud roar. In hard water areas, the bearing seal degrades faster, allowing water to reach the bearings — so bearing failure is more common in Saudi Arabia's Dammam, Al Khobar and Dhahran than in soft-water regions. See our guide on washing machine making noise.

The drum spider is a three-armed metal bracket that connects the drum's rear wall to the spin shaft. On many washers it is made of cast aluminium. In hard water areas, detergent and mineral residue can corrode the spider over time, weakening its arms. When a spider arm cracks or breaks, the drum becomes misaligned, producing severe vibration, banging, and often a metallic scraping sound. A broken spider is one of the most serious causes of vibration because continued use will damage the drum, bearings, and door seal — and can even cause the drum to contact the outer tub.

Front-loading washers have heavy concrete counterweights bolted to the front and top of the outer tub to dampen vibration. These counterweights are bolted in place with several large bolts. Over years of vibration, these bolts can loosen, and in some cases the concrete counterweight itself can crack. A loose counterweight produces a deep, heavy thumping or clunking sound during spin, and the vibration may feel different from a load imbalance — it's a heavier, slower bang. A cracked counterweight is a safety concern because a large piece of concrete could dislodge.

Overloading doesn't just cause poor cleaning — it directly causes vibration. An overloaded drum is heavier, and the motor must work harder to spin it, which amplifies any existing imbalance. Overloading also prevents clothes from distributing evenly, because they are packed too tightly to move. In extreme cases, an overloaded washer will refuse to spin at all, or will spin at a greatly reduced speed.

A bra wire, coin, hair clip, sock, or small toy can slip between the inner drum and the outer tub. Once trapped, it can cause the drum to vibrate, scrape, or bang as it rotates — often rhythmically, once per drum rotation. This is a common cause of vibration that appears suddenly after a specific load (often after washing a load that included a wired bra or a child's clothing with small items in the pockets). The object may also damage the drum or cause a leak.

A washer must sit on a rigid, solid floor. Wooden floors, raised wooden platforms, mezzanine floors, and lightweight concrete slabs can flex under the dynamic load of a spin cycle, amplifying vibration dramatically. On a flexible floor, even a perfectly balanced and perfectly leveled washer will vibrate and 'walk.' This is a common problem in Saudi apartments where the laundry area is on a raised wooden deck or a lightweight mezzanine.

Too much detergent — or non-HE detergent in an HE washer — creates a thick layer of suds. Suds are air-filled and reduce the density of the water, which affects how the washer's load sensor reads the drum. More importantly, suds can cause clothes to float and cluster together, creating an imbalance that the washer cannot correct. Suds-related vibration is often accompanied by visible foam in the drum or leaking from the detergent drawer.