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Why Does My PRISM+ Dryer Have a Musty Smell?

PRISM+ Support teamUpdated 6 August 2026~4 min remaining4 steps

A musty smell is usually caused by trapped moisture inside the dryer. This can occur if the lint filter or condenser is not cleaned regularly, or if there is insufficient airflow around the unit.

Running a Refresh Cycle and performing regular maintenance can help eliminate odors and keep your dryer operating efficiently.

 

Common Causes

A musty odor may occur if:

  • The lint filter has not been cleaned regularly.
  • The condenser requires cleaning.
  • Moisture remains inside the dryer after use.
  • The ventilation area around the dryer is blocked, restricting airflow.

Steps

  1. 1
    1 min

    Remove all clothing and other items from the drum.

  2. 2
    1 min

    Remove and clean the lint filter before starting the cycle.

  3. 3
    1 min

    Run the dryer on a Normal or Air cycle for approximately 10–20 minutes without any laundry inside. 

  4. 4
    1 min

    Ensure the area around the dryer is free from obstructions so that air can circulate properly during operation.

Regular Maintenance Tips

To help prevent musty smells:

Maintenance TaskRecommendation
Clean the lint filterBefore or after each drying cycle.
Clean the condenserRegularly as part of routine maintenance.
Run a Refresh CycleIf the dryer has not been used for some time or if an odor develops.
Maintain proper airflowKeep the ventilation area around the dryer clear of obstructions.

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