Naperville 
Why Is My Dryer Suddenly Taking So Long?
A dryer that used to finish a load in one cycle but now needs two (or more) is telling you something changed, dryers don't gradually get slower on their own without a cause. In the large majority of cases, that cause is airflow: something is blocking the hot, moist air from escaping the machine and the vent duct, so the drum fills with humid air that never fully clears.
The #1 Cause: A Clogged Vent (and Why That's a Fire Risk)
Lint doesn't just collect in the little screen you clean out after each load, a portion of it always escapes past the trap and builds up further down the exhaust duct, especially over months or years of regular use. As that buildup narrows the duct, three things happen at once: drying times get longer, the dryer runs hotter than it's designed to, and the lint sitting inside a hot duct becomes a fire hazard.
This is why "my dryer is taking forever" and "is my dryer vent a fire risk" are really the same question. A vent that's struggling to exhaust air is both the reason your clothes are still damp after 90 minutes and the reason the dryer is running hotter than it should.
Signs your vent is the problem
- The top of the dryer feels noticeably hot to the touch during a cycle.
- The laundry room feels warmer or more humid than usual while it's running.
- You can't remember the last time the vent duct (not just the lint screen) was cleaned out.
- The exterior vent hood flap barely moves when you hold your hand near it while the dryer runs.
Other Common Causes of Slow Drying
A blocked vent is the most common culprit, but a few other issues produce the same symptom:
- Overloading the drum. Clothes need room to tumble and separate; a packed drum traps moisture no matter how clear the vent is.
- A worn heating element (electric dryers). If it's only partially heating, the dryer compensates by running longer instead of hotter.
- A weak igniter or gas valve issue (gas dryers). Similar effect to a failing element, less heat per cycle means more cycles needed.
- A failing moisture sensor. If the sensor can't correctly detect when clothes are dry, the cycle may end early (leaving things damp) or run unnecessarily long.
- A slipping or worn drive belt. Poor tumbling reduces how evenly air reaches the clothes, even with a clear vent.
Vent Problem or Mechanical Problem? How to Tell
This quick comparison covers the two most common categories and how to tell them apart before calling for a repair:
| Clue | Points to a vent/airflow problem | Points to a mechanical problem |
|---|---|---|
| Heat | Dryer runs hotter than normal, top is hot to the touch | Dryer runs cooler than normal, or not hot at all |
| Humidity | Laundry room feels steamy or humid during the cycle | Clothes come out cool and only slightly damp |
| Sound | No unusual noise, just longer cycles | New squealing, thumping, or grinding noise |
| Vent hood | Weak or no airflow at the outside vent hood | Normal airflow at the vent hood |
| Onset | Gradual, worse over weeks or months | Often sudden, one load to the next |
If it points to airflow, a vent cleaning usually resolves it, and it's worth doing immediately given the fire-risk angle. If it points to something mechanical, that's a job for a technician who can safely test the heating element, igniter, or drive components.
How Often Should You Clean Your Dryer Vent?
As a general guideline, have the full exhaust duct (not just the lint screen) professionally cleaned at least once a year, more often if you run a household of laundry-heavy size, have a long or bent duct run, or have noticed drying times creeping up. The lint screen itself should be cleaned after every single load, that habit alone prevents a large share of the lint that would otherwise migrate into the duct.
When to DIY vs. Call a Professional
Clearing the lint screen after every load is a safe, simple habit anyone can do. Vacuuming lint that's visible just inside the exhaust port is also reasonable DIY territory. But a full vent-line cleaning, especially for ducts that run through walls, up through a roof, or around several bends, and anything involving disassembling the dryer to inspect the heating element, igniter, or gas valve is best left to a technician. Gas dryer components in particular involve combustion and gas-line safety, not a place to guess.
Frequently Asked Questions
Why does my dryer take two cycles to dry clothes?
The most common reason is restricted airflow from a clogged lint screen or blocked exhaust vent. Overloading the drum, a worn heating element, or a failing moisture sensor can also cause it.
Is a slow-drying dryer a fire hazard?
It can be. A blocked vent traps lint and heat inside the exhaust path, and clogged dryer vents are a well-documented cause of home dryer fires. Slower drying is often the first noticeable symptom.
How often should a dryer vent be cleaned?
At least once a year for most households, more often for heavy laundry use or long/bent duct runs. Clean the lint screen after every load regardless.
Do gas dryers take longer to repair issues than electric dryers?
Gas dryer repairs (igniters, gas valves) typically cost somewhat more than electric due to the added safety steps and specialized parts involved, but the diagnostic process is similar.