Symptoms
- Clothes still damp after a full normal cycle
- Dryer runs hot but drying is slow
- Outside vent hood barely flaps during operation
- Room gets noticeably warm or humid while running
Likely causes
- CommonClogged exhaust vent ductLint accumulates inside the ductwork over months, especially on long or bent vent runs.
- CommonLint filter not cleaned each loadA lint-coated screen blocks airflow even if the vent itself is clear.
- CommonOverloading the dryerToo many clothes at once prevents proper tumbling and airflow around each item.
- PossibleWeak or failing blower wheelA cracked or loose blower fan moves less air even with a clear vent.
- PossibleBad moisture sensorOn sensor-dry cycles, a dirty or failed sensor can end the cycle early or run it inefficiently.
What to do
- Clean the lint filter before every load if you haven't been.
- Reduce load size and try drying a smaller batch to see if timing improves.
- Disconnect the vent hose from the back of the dryer and check for lint buildup right at the connection.
- Follow the vent run to the exterior wall and clear or replace any crushed, kinked, or overly long sections.
- Check that the outside vent hood flap opens freely and isn't blocked by debris, snow, or a bird nest.
- Wipe the moisture sensor strips inside the drum with rubbing alcohol on a cloth if your model has sensor-dry.
- If drying is still slow after clearing airflow, have the blower wheel and vent path professionally inspected.
Tools and parts
- Vent brush or vacuum with hose attachment
- Screwdriver
- Rubbing alcohol and cloth
Dryer vent ductSearch: “dryer vent duct hose”
Dryer lint trapSearch: “dryer lint filter screen”
When to call a pro
If a professional vent cleaning doesn't fix long dry times, ask an appliance technician to check the blower wheel and moisture sensor.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.