The short answer
Damp laundry after a full cycle means the machine cannot move air. Check the filter, then the duct, then - in a closet or stacked installation - whether the machine has any intake air at all. A budget dryer with a bad duct run will never dry well, whatever is replaced inside it.
What you notice
- Loads need a second cycle to finish — Restricted airflow, developing over months.
- The laundry closet is hot and steamy afterwards — Air is escaping into the closet rather than leaving.
- Clothes hot but still damp — Heat present, air movement absent.
- Drying is worse with the closet door shut — The machine has no intake air.
- Only towels and jeans stay damp — Load composition rather than a fault.
- Not this fault: no warmth at all in the drum — That is the not-heating page.
Ranked for compact and stacked machines
- Duct run too long, squashed or full of lint — First, and in a closet it is usually all three.
- Lint filter blocked, often by softener film — Second, and invisible until the filter is rinsed.
- No intake air because the closet is sealed — Third, and specific to this installation type.
- Overloading a small drum — Fourth: compact drums fill fast and air cannot pass.
- Vent hood flap stuck or blocked outside — Fifth, and nobody looks at it.
- Weak heat from a partial heating fault — Last, and it usually presents as no heat rather than slow drying.
Check in this order
- Rinse the lint filter under water — Water that beads on the mesh means the filter is blocked.
- Run a cycle with the closet door propped open — A clear improvement names the intake air.
- Disconnect the duct and run a short timed cycle — Fast drying without the duct convicts the duct.
- Look at the outside hood while the machine runs — No airflow there ends the investigation.
Owner checks
- Rinse the lint filter and dry it before refitting — Do this monthly, not only when drying gets worse.
Tools: soft brushAbout 10 min
- Prop the closet or cupboard door open for one cycle — It tests the intake side, which nobody thinks about.
About 45 min
- Pull the machine forward and straighten the duct behind it — A squashed duct behind a stacked machine is very common.
About 25 min
- Clean the duct from both ends — Compact installations have short runs that block completely.
Tools: duct brush, vacuumAbout 45 min
- Dry a smaller load as a comparison — A compact drum overloads far more easily than a full-size one.
About 45 min
- Stop before opening the cabinet to reach the blower — Lint, mains wiring and a heat source share that space.
Lint in a confined space
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. A dryer in a closet concentrates both heat and lint, so keep the closet clear of stored laundry and boxes, never vent the machine into the closet or the room, and use rigid or semi-rigid metal duct where the installation calls for it.
When to call
Call an installer when the duct run itself is the problem, because shortening or re-routing it is building work rather than appliance repair. Call an appliance technician when the duct is clear, the intake is good and drying is still poor, which points at the blower or a partial heating fault. A budget machine with a good duct that still dries badly is worth pricing against a replacement.
Other faults on this dryer
Scope of this page
Written for the dryer class under this badge, generalized across families and installation types; where a family-specific or model-specific page exists it is the narrower answer. Not here: duct length limits, blower specifications, drum capacities and the differences between vented, condenser and heat-pump machines.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
