Aroma Park dryer that ran twice to dry one load: a long vent, a lint-choked booster, and a flapper stuck open
An Aroma Park homeowner was running the dryer through two full cycles to get a load dry and the laundry room felt like a sauna. The dryer was fine. The vent that was supposed to carry the moisture outside was choked.
Two cycles per load is a vent problem, not a dryer problem
When a dryer suddenly needs two cycles, the machine is almost never the culprit. The air it heats has to carry the moisture out through the vent duct, and if that duct is restricted the humid air has nowhere to go. It recirculates, the clothes stay damp, and the dryer runs hot and long trying to finish. In the low, damp ground near where the Kankakee and Iroquois rivers meet, that trapped moisture also shows up as a muggy laundry room and sometimes mildew behind the machine.
This home had a long duct run with a booster fan mid-way — a setup used when the vent has to travel a long distance to an outside wall. Booster fans help, but they also collect lint at the blades, and when they clog they make the restriction worse than no fan at all.
What we found in the duct
We disconnected the duct and ran a rotary brush the full length. The booster fan housing was packed with felted lint around the impeller, which is both a flow problem and a fire risk — lint is fuel and the motor is a heat source. At the wall, the exterior flapper hood was stuck part-open with lint, so it neither sealed against cold air nor opened fully to vent. [Observed] On long runs with a booster, the fan housing is usually the worst clog in the system.
We cleaned the fan, cleared the full duct, replaced the crushed section of foil transition hose at the dryer with smooth rigid metal, and freed the exterior hood so it opens and closes on its own again.
How to keep a long run from clogging
Long vent runs need cleaning more often than a short straight shot — lint has more surface to grab. Use rigid or semi-rigid metal duct, never the ribbed plastic or foil accordion hose, which traps lint in every ridge. Keep the exterior hood clear of snow and nests, and watch for the warning signs: longer dry times, a hot dryer top, and a laundry room that holds humidity.
A clean vent dries clothes in one cycle, cuts the energy the dryer burns, and takes a real fire risk off the table. Our dryer vent cleaning pricing is published. We are insured and bonded and answer seven days a week.
If this sounds like your house: we handle dryer vent cleaning across Kankakee County, and our Aroma Park page covers what we usually find there. Call (815) 449-4264, 7am to 9pm, any day.
Quick questions
Why is my dryer taking two cycles to dry a load?
Almost always a restricted vent. Lint buildup, a clogged booster fan, or a stuck exterior flapper traps the humid air so clothes stay damp and the dryer runs long. Cleaning the full duct fixes it.
Is a clogged dryer vent really a fire risk?
Yes. Lint is highly flammable and the dryer is a heat source. A packed duct or booster-fan housing is one of the more common household fire causes, which is why annual cleaning matters.
What kind of duct should a dryer use?
Rigid or semi-rigid smooth metal. The ribbed plastic or foil accordion hose traps lint in every ridge and sags, which is why we replace it during a cleaning.
How often should a long dryer vent run be cleaned?
More often than a short one — at least once a year, sometimes twice for heavy use. Long runs and booster fans collect lint faster, so they need closer attention.
Published November 7, 2026 · By Jacob Dove, Friendship Chimney Sweep, Bourbonnais IL