Why does my dryer take two or three cycles to dry one load?
In most cases the dryer is blocked downstream: lint has built up in the vent line, the exterior hood flap, or the ductwork behind the machine, so the hot, moist air can't leave fast enough. The dryer keeps running, but the clothes sit in damp air instead of drying, so you run the cycle again and again.
The nuance is that a short, clean vent with the same symptom points somewhere else — a failing heating element, a bad thermostat or cycling switch, or a gas dryer with an ignition problem. A quick check of the exterior hood tells you which direction to look first.
Why it happens
A dryer works by moving heated air through the clothes and pushing the moisture out through the vent. Lint escapes the lint screen on every load and settles along the duct, and it collects fastest at bends, crushed sections, and the exterior hood where air slows down. Once the opening narrows, the dryer is essentially breathing through a straw.
Flexible foil and plastic hose make this worse. They sag, they kink behind the machine, and their ridged interior catches lint in a way smooth rigid metal duct does not. Long runs and roof terminations add to it, since there is more distance for lint to settle and more resistance for the blower to overcome.
Humid climates pack lint tighter, so a vent that was fine in a dry house can clog faster in a damp one. Restricted airflow also makes the dryer run hotter and cycle its high-limit thermostat, which is why a blocked vent often shows up as both long dry times and a hot, musty-smelling laundry room. With a gas dryer, poor venting can also allow combustion gases to back up into the room instead of exiting outside.
What you can check yourself
Put the dryer on a timed cycle and hold your hand near the outside vent. You should feel a strong, warm push of air; weak or barely-there airflow points to a blockage in the line.
Open the flap and look inside with a flashlight for matted lint, a bird nest, or a flap stuck shut by paint or debris. Clear what you can reach from the outside by hand.
Unplug the dryer first (and shut off the gas valve on a gas unit before moving it). Look for a crushed, kinked, or disconnected hose behind the machine — that alone can double dry times.
Wash the screen if dryer sheets have left a film on it, then vacuum the slot the screen drops into. A clogged screen housing restricts air before it ever reaches the vent.
Clothes need room to tumble so hot air can pass through them. A packed drum or a load of heavy towels will take longer no matter how clean the vent is.
When to call a pro
Call someone out if the exterior airflow is weak after you've cleared what you can reach, if the vent runs through a wall, attic, crawlspace or roof where you can't access the middle of the line, or if the duct is foil or plastic hose and needs to be replaced with rigid metal. Other signs it's past DIY: the dryer shuts off mid-cycle, the laundry room gets hot and humid during a load, or you have a gas dryer and smell exhaust fumes while it runs.
Call USA Home Repairs at (888) 996-7488 and we match you with a vetted local pro near you — free estimate, and you approve the price before anything starts.
What a pro will do
- Clean the full run, not just the ends
A pro brushes and vacuums the entire duct from the dryer connection to the exterior termination, including elbows and the section inside the wall.
- Test airflow
Airflow is measured at the hood before and after cleaning, which confirms the line is actually clear rather than just cleaner than it was.
- Replace bad duct
Foil or plastic hose, crushed sections, and sagging runs get swapped for smooth rigid metal duct with properly sealed joints.
- Re-route long or difficult runs
Where a run is excessively long or full of turns, a pro can shorten or re-route it to a closer exterior wall so the blower isn't fighting the duct.
- Replace the exterior hood
A damaged flap, a screened cover that traps lint, or a painted-shut hood gets replaced with a proper termination that opens freely and keeps pests out.
Related questions
How often should a dryer vent be cleaned?
Once a year is a common recommendation, and more often with a long vent run, a large household, or a humid climate where lint packs tighter. If dry times start creeping up between cleanings, that's the real signal.
The vent is clean but drying is still slow — what now?
With good airflow at the hood, the problem is usually inside the machine: a weak or failed heating element, a tripped thermal fuse, a faulty thermostat, or an ignition issue on a gas dryer. An appliance repair tech can test those components.
Can I use the flexible foil hose sold at the hardware store?
It's widely available but it kinks, sags, and traps lint far more than smooth rigid metal duct. Most dryer manufacturers call for rigid or semi-rigid metal duct, and plastic hose should not be used at all — check your dryer's manual and verify any local requirement with your building department.
Does a longer dry time cost me anything besides patience?
Yes — running two or three cycles uses several times the energy of one, and the extra heat shortens the life of clothes and of the dryer's own components. Restoring airflow usually brings cycles back to normal length.
Is a blocked vent more of a concern with a gas dryer?
It can be, because a gas dryer's exhaust includes combustion gases that need a clear path outside. If venting is restricted, those gases can backdraft into the laundry room, so have a blocked gas dryer vent looked at rather than kept in service.
Want a pro to look at it?
Leave your number and we call you right back to set a time. Every visit is a free estimate, with no obligation, and we'll match you with a vetted local pro near you.
Rather talk to someone? Call (888) 996-7488.