Heat-Pump Dryer Vibrating or Shaking? Fixes

Why is my heat-pump dryer vibrating or shaking?#

In my experience the usual reason a heat-pump dryer vibrates or shakes is simply that its feet are not levelled, so the cabinet rocks and amplifies every bit of normal motion. A heat pump adds a compressor a vented dryer never had, so a low, steady buzz is actually normal, and the trick is telling that apart from a fault. As the table below sets out, the other common causes are an unbalanced or bunched load throwing the drum off balance, the machine touching a wall or a neighbouring appliance and rattling against it, that expected compressor vibration, and, least often, a worn drum roller or rear bearing letting the drum wobble. Most of these you can sort yourself in a few minutes; only the worn roller or bearing is really a technician job.

Vibrating or shaking: likely causes, ranked#

A heat pump adds a compressor, so some steady buzz is normal, but heavy shaking usually points to levelling, the load, or contact with a wall. You will feel the machine buzz or walk, sometimes rattling against the wall or a neighbouring appliance.

Safe checks to try first#

Start with the levelling, because it is the most common fix and it costs nothing. Rock the machine gently from corner to corner: if it tips, turn the levelling feet until it sits dead firm on the floor with no movement, then tighten any lock nuts. Next look at the load, because a single heavy item like a towel or a bunched, knotted wash throws the drum off balance and shakes the whole cabinet; pause the cycle, open the door, and spread the washing out or add a couple of items to even it up. Then check the machine has a small gap all round: if the cabinet is pressed against a wall, a worktop, or the washer beside it, ordinary vibration becomes a loud rattle, and easing it away by even a centimetre often silences it. Finally, run it empty for a minute and just listen, because a low, steady buzz with the machine sitting still is only the heat-pump compressor doing its job and nothing needs fixing. If the dryer is level, the load is balanced, nothing is touching it, and it still shakes hard or you hear a grinding wobble as the drum turns, stop there: that points to a worn roller or bearing, and it is time to book a technician rather than keep running it.

When to call a technician#

The good news is that most causes of a shaking heat-pump dryer are owner maintenance. Levelling the feet, balancing or redistributing the load, giving the machine room so it is not buzzing against a wall or an appliance, and recognising the normal low hum of the compressor are all things you can do yourself with no tools beyond adjusting the feet. What needs a technician is genuine mechanical wear, meaning a worn drum support roller or a failing rear bearing that lets the drum wobble and will only get worse. That is an internal part that has to be inspected and replaced, and it is not something to keep running through, because a bearing that finally lets go can damage more of the machine around it. So if you have levelled the dryer, sorted the load, and cleared any contact, and it still shakes hard or wobbles with a grinding sound as the drum turns, that is the moment to hand it to a technician instead of drying through it.

Common questions#

Why is my heat-pump dryer vibrating or shaking?#

Often the most common reason is that the feet are not levelled, so the cabinet rocks and amplifies normal motion. An unbalanced load, the machine touching a wall or appliance, and the normal buzz of the heat-pump compressor also cause it, while a worn roller or bearing is a rarer, mechanical cause. Level the machine and balance the load first, and only call a technician if a grinding wobble remains.

Could feet not levelled be the cause?#

Very likely. An unlevel machine rocks on its feet and turns the compressor and drum's normal vibration into a shake you can feel and hear. Rock the dryer corner to corner and adjust the levelling feet until it sits firm with no movement, which on its own fixes most cases.

Does an unbalanced or bunched load explain it?#

Yes. A light, bunched, or knotted load throws the drum off balance, and the cabinet shakes as the drum spins the weight round unevenly. Pause the cycle and spread the washing out, or add a couple of items to balance it, and the shaking usually settles.

Should I check contact with a wall or appliance first?#

It is worth checking early. If the cabinet is touching a wall, a worktop, or a neighbouring appliance, ordinary vibration becomes a loud rattle. Leaving a small gap all around the machine so nothing touches it often quietens it straight away.

Can normal compressor vibration do this?#

It can. A heat-pump dryer has a compressor a vented dryer never had, so a low, steady buzz, especially with the machine sitting still and drying normally, is expected rather than a fault. If that is all you feel, there is nothing to fix.

Could a worn drum roller or bearing be the cause?#

Less often, yes. A worn drum support roller or a failing rear bearing lets the drum wobble as it turns, usually with a grinding note. This is a mechanical wear part that needs a technician to inspect and replace, so stop running the dryer if the wobble persists once it is level and the load is balanced.

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