Symptoms
- Plastic lint trap housing looks warped, discolored, or melted
- Lint filter itself is deformed and doesn't sit flush
- Noticeable increase in drying times recently
- Hot smell noticed along with the visible damage
Likely causes
- CommonSeverely restricted vent causing excess heat buildupA badly clogged vent traps heat near the lint trap area, which can warp nearby plastic components over time.
- PossibleLong-term lint buildup insulating the area and trapping heatCompacted lint can act as an insulator, letting heat build up locally.
- PossibleMalfunctioning thermostat allowing excess heatA stuck thermostat can let temperatures run higher than designed even with decent airflow.
- Less commonManufacturing defect or low-quality plastic housingIn rare cases the housing itself is more heat-sensitive than typical.
What to do
- Stop using the dryer if you notice melted, warped, or discolored plastic near the lint trap.
- Unplug the dryer and let it cool before inspecting further.
- Thoroughly clean the lint filter, the lint trap housing, and as much of the surrounding area as you can reach.
- Check and clear the entire exhaust vent duct from the dryer to the outside for blockages.
- Do not run the dryer again until the vent is confirmed clear and any melted components are assessed.
- Have a technician inspect the warped area to determine if the housing needs replacement and confirm there's no fire damage risk.
- Have the thermostat and safety controls tested to rule out an overheating malfunction.
Tools and parts
- Vent brush
Dryer lint trap housingSearch: “dryer lint filter housing replacement”
When to call a pro
Have an appliance technician inspect any melted or warped plastic before using the dryer again, since this points to a real overheating event.
Safety
Use caution
Melted or warped plastic near the lint trap is a sign of dangerous overheating; stop using the dryer until a professional inspects it.