Dryer drying time is inconsistent between loads

Symptoms

• Same size load sometimes takes 30 minutes, sometimes over an hour
• No clear pattern tied to fabric type or load size
• Sensor-dry cycles seem unpredictable
• Timed dry cycles are consistent, but auto/sensor cycles are not

Likely causes

• CommonDirty moisture sensor bars inside the drumA film of fabric softener or residue on the sensor strips can cause inconsistent moisture readings.
• CommonFabric softener sheets residue coating the sensorDryer sheets can leave a waxy film directly on the metal sensor strips, throwing off readings.
• PossibleVarying load composition between cyclesDifferent fabric types and mixed loads naturally dry at different rates, which can look inconsistent but is normal.
• PossibleIntermittent connection to the moisture sensorA loose wire or connector at the sensor can cause erratic readings.
• Less commonPartially restricted airflow affecting sensor readingsInconsistent airflow from a partially clogged vent can affect how quickly the sensor detects dryness.

What to do

1. Locate the metal moisture sensor strips inside the drum, usually near the front.
2. Clean them thoroughly with a cloth and rubbing alcohol to remove any waxy dryer sheet residue.
3. Switch from dryer sheets to wool dryer balls or liquid fabric softener for a few loads to see if consistency improves.
4. Compare similar loads (same size and fabric type) to see if the inconsistency is really abnormal or just due to varying load makeup.
5. Check the lint filter and vent for buildup that could be affecting airflow and sensor readings.
6. If cleaning the sensor doesn't help, try a timed dry cycle instead of sensor-dry as a temporary workaround.
7. Have a technician check the sensor wiring connection if cleaning doesn't resolve the inconsistency.

Tools and parts

• Cloth
• Rubbing alcohol

When to call a pro

If cleaning the moisture sensor doesn't improve consistency, have a technician check the sensor's wiring connection.

Safety