Why Does Your Washer Shake or Stop Draining?

The washer pounds across the floor during the spin, or the cycle ends and the drum is still full of water. These look like two different problems, but they usually come from the same place: a machine struggling with one of the two hard jobs it does every cycle. Knowing which job is the problem makes the cause much easier to find.

Your washer does two hard jobs every cycle

First, it moves water, filling the drum, then pumping it out through a hose and into your home's drain. Second, it spins a heavy, wet load at high speed. Almost every drain or shaking problem sits in one of those two jobs. Water problems usually involve the pump, the filter, or the hoses. Shaking problems usually involve how the load sits, how the machine sits on the floor, or the parts that hold the drum steady.

Why the water stays in the drum

The drain path is simple: the drum, a hose, a pump, and then your household drain. A clog or failure at any point leaves water behind. The pump filter is a common culprit, because coins, socks, hair ties, and lint end up there and slowly restrict the flow. The drain hose can be kinked behind the machine or packed with lint, and sometimes the problem is in the household standpipe the hose empties into. If the pump itself has failed, you may hear it humming without moving any water. Some washers also refuse to drain or spin when the door lock or a sensor doesn't register correctly, and they will usually show an error code when that happens.

Why it shakes harder than it should

The most common reason is the simplest one: the load. A single heavy item like a comforter or a wet towel bunched on one side throws the drum off balance, and the faster the drum spins, the harder that imbalance pulls. Next comes the machine's position. If it isn't level, or one of the feet has drifted, the whole washer rocks as the drum accelerates. New front-load machines that still have their transit bolts in place will shake violently, since those bolts lock the drum for shipping. Finally, the parts that cushion the drum, the shock absorbers and springs, wear out over time, and worn drum bearings produce a rumbling or grinding sound that gets louder as the spin speeds up.

When a drain problem causes the shaking

The two symptoms often feed each other. If water doesn't drain properly, the machine tries to spin a load that is still soaked and far heavier than it should be, and a heavy, uneven load is exactly what makes a washer pound. So a washer that suddenly started shaking, especially if the clothes come out dripping wet, may really be a drain problem in disguise. Fixing the drain often calms the shaking too.

Checks you can safely try first

Before calling anyone, a few simple checks are worth doing:

• Unplug the washer before you touch anything inside or behind it.
• Redistribute the load, and run a spin on its own with a smaller, more even load.
• Check that the machine sits level and doesn't rock when you push on its corners, and adjust the feet if it does.
• Look behind the washer for a kinked or crushed drain hose.
• If your model has an accessible pump filter, clean it out. Have towels and a shallow pan ready, because water will come out.

Never force the door open while there's water inside, since it will flood the floor.

Signs it needs a technician

These patterns usually mean a failing part rather than a simple clog or a bad load:

• Grinding, rumbling, or hard pounding during the spin, even with an empty or small load.
• Water still left in the drum after you've cleaned the filter and checked the hose.
• Repeated drain or imbalance error codes.
• Leaks under the machine, or a burning smell during a cycle.

A technician can test the pump, check the shock absorbers and bearings, and find the cause quickly, instead of leaving you guessing through repeat cycles.

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