1. Clothes Take Longer to Dry
- If it’s taking more than one cycle to dry clothes, that’s a big red flag.
- A clogged vent restricts airflow, so the dryer can’t remove moisture efficiently.
2. Clothes Are Hot but Still Damp
- This means heat is building up, but the moisture can’t escape due to a blockage.
3. Burning Smell or Musty Odor
- A burning lint smell is a serious warning sign.
- Lint is highly flammable — don’t ignore this!
4. The Dryer Feels Hot to the Touch
- A properly vented dryer shouldn’t overheat.
- Hot exteriors = poor ventilation or overheating components.
5. Excess Lint Around the Dryer or Vent
- Lint buildup behind or around the dryer means it’s escaping — possibly because the vent is clogged or disconnected.
6. No Airflow or Weak Airflow at the Exterior Vent Hood
- When the dryer is running, you should feel a strong flow of warm air at the outside vent.
- Weak or no airflow = blockage inside the vent line.
7. Lint Trap Fills Up Quickly
- The lint trap should catch most lint.
- If it’s getting full fast, some lint may be bypassing the trap and clogging the vent system.
8. Excess Humidity or Heat in the Laundry Room
- If you notice your laundry room is hotter or more humid than usual, the dryer vent may not be exhausting properly.
9. It’s Been Over a Year Since the Last Cleaning
- Even without warning signs, it’s good practice to clean your vent annually — more often if you have pets, a large household, or use the dryer frequently.