Dryer Takes Too Long to Dry: Common Causes and How to Fix It

If your dryer takes much longer than usual to dry a full load, or requires multiple cycles to get clothes completely dry, the issue is typically related to restricted airflow, a failing heating component, or a malfunctioning moisture sensor.

Before replacing parts, check the lint filter, exhaust vent, and load size. If the problem continues, the following are the most common causes of a dryer taking too long to dry and the recommended solutions.

1. Clogged Lint Filter or Exhaust Vent

Most Common Solution

Why It Causes Long Drying Times

Restricted airflow reduces the dryer's ability to remove moist air from the drum, which significantly extends drying time.

Common causes include:

  • Lint buildup in the filter
  • Clogged exhaust duct
  • Blocked outside vent cap

Symptoms include:

  • Longer than normal drying times
  • Clothes remain damp after a full cycle
  • Dryer runs hot to the touch

How to Clean the Lint Filter and Vent

  1. Remove and clean the lint filter before every cycle.
  2. Disconnect power to the dryer.
  3. Pull the dryer away from the wall.
  4. Disconnect the exhaust duct from the back of the dryer.
  5. Remove lint and debris from the duct.
  6. Check the outside vent cap for blockage.
  7. Reconnect the duct securely.
  8. Restore power and test drying time.

2. Dryer Moisture Sensor

Why It Causes Long Drying Times

A dirty or failed moisture sensor may not properly detect dryness, causing the dryer to run longer than necessary or end cycles too early, leading to repeat cycles.

Common causes include:

  • Dirty sensor strips
  • Buildup from fabric softener
  • Failed sensor

Symptoms include:

  • Dryer runs the full extended cycle every time
  • Clothes need multiple cycles to dry completely
  • Sensor dry setting does not shorten the cycle

How to Clean or Replace a Dryer Moisture Sensor

  1. Disconnect power to the dryer.
  2. Open the dryer door.
  3. Locate the sensor strips inside the drum.
  4. Clean the strips with rubbing alcohol.
  5. If the sensor still fails, access the wiring behind the drum.
  6. Disconnect the sensor wiring.
  7. Remove the old sensor.
  8. Install the replacement sensor.
  9. Reconnect the wiring and test the sensor dry cycle.

3. Weakened Dryer Heating Element

Why It Causes Long Drying Times

A partially failed heating element produces reduced heat, extending drying time without stopping the dryer completely.

Common causes include:

  • Partially burned element coil
  • Corroded connections
  • Reduced voltage supply

Symptoms include:

  • Dryer produces some heat but not enough
  • Drying time gradually increases over weeks
  • Clothes come out slightly damp

How to Replace a Dryer Heating Element

  1. Disconnect power to the dryer.
  2. Remove the rear or front panel to access the heating assembly.
  3. Disconnect the wiring from the heating element.
  4. Remove the mounting screws or clips.
  5. Remove the old heating element.
  6. Install the replacement element.
  7. Reconnect the wiring and reassemble the panel.
  8. Restore power and test heating performance.

4. Overloading the Dryer

Why It Causes Long Drying Times

Oversized loads restrict air circulation around the clothes and prevent even drying, which extends the total drying time.

Common causes include:

  • Overfilled drum
  • Bulky items mixed with regular laundry
  • Wet, heavy items such as towels

Symptoms include:

  • Longer drying time with large loads
  • Uneven drying across the load
  • Clothes tangled together after the cycle

How to Prevent Long Drying Times from Overloading

  1. Reduce load size to allow clothes to tumble freely.
  2. Dry bulky items such as comforters separately.
  3. Distribute loads evenly for balanced airflow.
  4. Avoid mixing heavy and lightweight fabrics in the same load.

Preventing Long Dryer Cycles

To help prevent your dryer from taking too long to dry:

  • Clean the lint filter before every cycle.
  • Inspect and clean the vent system regularly.
  • Avoid overloading the dryer.
  • Clean moisture sensor strips periodically.
  • Use the appropriate cycle setting for the load.
  • Have the dryer serviced annually.

Find the Correct Dryer Replacement Part

A dryer that takes too long to dry is commonly caused by a clogged lint filter or vent, a dirty or failed moisture sensor, a weakened heating element, or overloading.

Always verify your dryer model number before ordering replacement parts to ensure the correct fit and compatibility.

At Authentic Appliance Parts, we provide quality dryer replacement parts and repair resources to help you diagnose dryer problems and complete repairs with confidence.