Clothes Dryer Takes a Long Time to Dry – What Causes Slow Drying and What Part Fixes It
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Understanding the Problem
If your clothes dryer runs much longer than it used to to get loads dry, the issue is almost always reduced heat or reduced airflow. Drying time depends on warm air moving through the drum and carrying moisture out the exhaust. Anything that reduces heat generation (electric heating element, thermal fuses, gas igniter/valve) or airflow (clogged lint screen, restricted vent, failing blower) will dramatically increase drying times. Slow drying can be intermittent or gradual. A partial vent restriction or a weak heating element can allow clothes to get warm but remain damp; a complete heating failure usually causes no heat at all. Diagnosing slow drying requires checking airflow first, then verifying the dryer is reaching and maintaining proper operating temperatures and that humidity/ moisture sensors are functioning correctly.
Common Symptoms
Long run times, clothes still damp at cycle end, dryer feels warm but not hot, lint accumulating in the lint trap or exhaust, dryer takes longer on every cycle or only with large/heavy loads.
Common Causes
- Restricted exterior vent or ductwork (lint, bird nest, crushed duct)
- Failed or weak heating components (heating element, igniter, gas valve coils)
- Faulty thermostats/thermal fuses/thermistors or moisture sensors reducing heat
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at PartsDiscount.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Start by checking airflow: remove the lint trap and run the dryer on high heat with a wet towel inside, then feel the exhaust outside. Strong steady airflow and hot exhaust indicate the problem is likely a heating component; weak or no airflow points to venting or blower problems.
Frequently Asked Questions
How do I know if the vent is the problem or the heating element?
Check airflow first: with the dryer running on a heat cycle (empty or with a wet towel), feel the exhaust at the outside vent. Strong, hot airflow usually means the vent is clear and a heating component is suspect. Weak or no airflow indicates a clogged or crushed vent or a failed blower. Also check the lint trap and inside the dryer exhaust port for blockages before replacing heating parts.
Can I keep using the dryer if it’s taking too long to dry?
It’s not recommended. Slow drying often indicates restricted airflow or failing safety parts (like a thermal fuse or high-limit thermostat). Restricted vents increase fire risk and can overheat components. If heat is reduced, you’ll also waste energy and may cause heavier wear on the appliance. Address venting and heating checks promptly.
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