Why is my heat-pump dryer leaving lint on clothes?#
When washing comes out coated in fluff, the usual reason is simply a full fluff filter: once it can hold no more, it stops trapping lint and the fibres recirculate onto the load. This design recycles its air inside the cabinet rather than blowing it outdoors, so filter care matters far more than it did on an old vented machine. The ranked table below lists the rest: a torn or ill-fitting filter that lets lint slip straight past, a stray tissue or scrap left in a pocket that shreds and coats everything, and a lint-choked condenser shedding fibres back into the flow. Each of these is something you can put right yourself with a rinse and a careful look.
Leaving lint on clothes: likely causes, ranked#
Lint is bypassing the fluff filters instead of being trapped, so it settles back onto the load. You will pull out clothes coated in fluff even though they went in clean.
| Likely cause | What's happening | How likely | First thing to check | Fix it yourself? |
|---|---|---|---|---|
| Filters not cleaned between loads | a full filter cannot catch new lint, so it recirculates onto the clothes | Most likely | rinse both the door filter and the fine base filter before each load | Often DIY |
| A torn or ill-fitting filter | lint slips past a split or loosely seated filter and back into the drum | Most likely | check both filters for tears and that they seat and lock fully | Often DIY |
| Tissues or debris left in pockets | a stray tissue shreds in the drum and coats the whole load | Possible | empty pockets before drying and wipe the drum out | Often DIY |
| A lint-loaded condenser | fine lint packed into the heat exchanger sheds back into the airflow | Possible | open the base flap and rinse the condenser fins | Often DIY |
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Safe checks to try first#
Start with the filters, because a clogged mesh is the leading reason fluff ends up back on your clothes. Rinse both the door screen and the finer base one before every load, not just now and then, since recycled air leans on them to catch the lint. While they are out, hold each up to the light to spot tears or splits, and confirm it seats and locks fully, because fibres slip past anything damaged or loosely fitted. Next, make a habit of emptying pockets and wiping the drum, as a single tissue shreds and dusts a whole load. Then, if the screens are clean and sound yet clothes stay fluffy, open the base flap and rinse the condenser fins, because fine lint packed into the heat exchanger sheds straight back into the air. Should both filters be spotless and intact, pockets clear, and the condenser washed, and washing still comes out covered, that is worth a technician checking the internal ducting and seals rather than more rinsing.
When to call a technician#
Getting fluff off your washing is owner maintenance from start to finish in almost every case. Rinsing both screens between loads, checking them for tears and a proper fit, emptying pockets and wiping the drum, and washing the condenser are all simple jobs needing only water and a couple of minutes. A split filter does mean buying a replacement, but fitting it is still a homeowner task. A technician only enters in the unusual case where every screen is clean, intact, and correctly seated, the condenser is washed, pockets are clear, and clothes still come out fluffy, which suggests lint escaping past a seal or gathering in the ducting. So work through the filters, pockets, and condenser first; only if a fully clean machine keeps depositing fibres is it time to call someone to look inside.
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Common questions#
Why is my heat-pump dryer leaving lint on clothes?#
Usually a full fluff filter can no longer trap lint, so the fibres recirculate onto the washing in a machine that recycles its air. A torn or ill-fitting screen, a stray tissue, or a clogged condenser also cause it. Rinse both filters before each load and check them for damage first.
Could filters not cleaned between loads be the cause?#
Yes, and it is the most common one. Because the air is recycled inside the cabinet, the machine leans heavily on its screens, and a full one simply pushes lint back onto the clothes. Rinse both the door screen and the fine base one before every load.
Does a torn or ill-fitting filter explain it?#
It can. Fibres slip straight past a split screen or one not seated properly and settle back on the wash. Hold each up to the light for tears, make sure it clicks into place, and replace a torn one.
Should I check tissues or debris left in pockets first?#
It is a quick and worthwhile check. One tissue left in a pocket shreds in the drum and dusts an entire load with fluff. Empty pockets before drying and wipe out the drum, and this common cause disappears.
Can a lint-loaded condenser do this?#
Yes. Fine lint packed into the condenser sheds back into the recycled flow and onto the clothes. Open the base flap, rinse the heat-exchanger fins, and let them dry before the next load.
Is this a DIY fix or a technician job?#
It is a do-it-yourself fix in nearly every case: clean both screens, check them for tears and fit, clear pockets, and rinse the condenser. Only if a fully clean, intact machine keeps leaving fluff does it need a technician to check the seals and ducting.
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