A dryer that takes 2+ cycles to dry a normal load wastes energy and increases fire risk. Here's the diagnosis path from easiest to hardest.
1. Check the Lint Screen — Every Load
A fully clogged lint screen reduces airflow by up to 75%. Clean it before every single load. If it's coated with fabric softener residue (which you can't see), wash it with dish soap and a brush monthly.
2. Inspect the Vent Duct (Most Common Cause)
The exhaust duct from your dryer to the outside wall is the #1 cause of slow drying and dryer fires. A blocked duct traps moisture and heat inside the drum.
Test: Go outside while the dryer runs and hold your hand near the vent flap. You should feel strong, warm airflow. Weak airflow = blocked duct.
Fix: Disconnect the duct from the dryer and vacuum it out from both ends. Replace any plastic accordion duct with rigid metal — plastic sags, traps lint, and is a fire hazard.
3. Heating Element (If No Heat at All)
If the drum spins but there's no heat at all, the heating element (electric) or igniter (gas) has likely failed. This is a straightforward repair that restores full function.
Cost: $95–$250 depending on brand and model.
4. Moisture Sensor Bars
Inside the drum are two metal sensor strips. If coated in fabric softener residue, they misread moisture and end the cycle early while clothes are still damp. Clean them with a cotton ball and rubbing alcohol.