Why Is My Dryer Taking So Long to Dry Clothes? Common Causes and Fixes

If your dryer is running cycle after cycle but your clothes are still coming out damp, the most likely culprit is a clogged or restricted exhaust vent — and it’s more common than you’d think. A few other causes include a failing heating element, a clogged lint trap, or an overloaded drum. The good news is that some of these are quick DIY fixes, while others need a trained technician to get your dryer running efficiently again.

Here in West Michigan, we see this complaint all the time — especially in the spring when households ramp up laundry after a long winter. Whether you’re in Grand Rapids, Kalamazoo, or Lansing, let’s walk through exactly why your dryer might be underperforming and what you can do about it.

The #1 Reason: A Blocked Exhaust Vent

Your dryer works by pulling in air, heating it, tumbling it through your clothes to absorb moisture, then expelling that humid air through an exhaust vent to the outside of your home. If that vent is blocked — even partially — your dryer can’t expel moisture fast enough, and drying times skyrocket.

Lint is the obvious culprit. Over time, lint sneaks past the lint trap and accumulates in the duct work. But in Michigan, it’s also common to find bird nests in exterior vent covers (especially in spring), crushed flexible ducts behind the machine, or vent flaps that have rusted shut in winter.

What to check:

• Go outside while the dryer is running and feel for airflow at the exterior vent. Weak or no airflow = blockage.

• Pull the dryer a few inches away from the wall and inspect the flexible duct. If it’s kinked, crushed, or longer than 8 feet with tight bends, airflow is being choked.

• Look at the vent flap outside. It should open freely when the dryer runs and close when it stops.

Cleaning the full vent run (not just the lint trap) is something you can do yourself with a dryer vent cleaning kit from any hardware store — or a tech can handle it during a service call.

A Dirty or Misused Lint Trap

You’ve heard this one before, but it’s worth repeating: clean your lint trap before every single load. A lint trap that’s 50% clogged reduces airflow enough to noticeably extend drying time. A 100% clogged trap is also a fire hazard.

Here’s something a lot of people don’t know: dryer sheets leave a waxy residue on the lint screen over time, and even when you pull the lint off, the screen itself can be partially blocked. If you hold the lint trap up to a light and can’t see through it easily, it’s time to wash it with warm soapy water and a soft brush. Let it dry completely before reinstalling.

Overloading the Drum

A stuffed dryer drum can’t tumble clothes properly. When clothes can’t move freely, warm air can’t circulate through them, and they stay damp even after a full cycle. A good rule of thumb: your dryer drum should be about 75% full at most — clothes should be able to tumble freely.

This is especially common with heavy items like jeans, towels, and bedding. Consider splitting a large laundry load into two smaller dryer loads rather than cramming everything in at once. It’s faster overall, easier on your machine, and your clothes dry better.

The Heating Element Has Failed (or Is Failing)

If your dryer is running but producing little to no heat, the heating element (in electric dryers) or the igniter/gas valve (in gas dryers) may have failed. You’ll notice your clothes barely warm up even after 60+ minutes in the drum.

A few related parts that can cause similar symptoms:

• Thermal fuse: A safety device that blows when the dryer overheats. Once it blows, the dryer won’t heat at all. This is a common and relatively inexpensive repair.

• High-limit thermostat: Regulates temperature and can fail, causing insufficient heat.

• Cycling thermostat: Controls the on/off cycle of heat. A failing thermostat can cause inconsistent heating.

These are not DIY repairs for most homeowners — they require disassembly, a multimeter to test components, and knowledge of which parts need replacement. A certified technician can diagnose and fix these in a single visit.

Moisture Sensor Issues

Most modern dryers use moisture sensors inside the drum to detect when clothes are dry and shut off the cycle automatically. If those sensors get coated with dryer sheet residue or mineral deposits, they can misread moisture levels and stop the dryer too early — leaving your clothes damp — or run way longer than necessary.

The sensors are usually two small metal bars near the front of the drum interior. You can clean them gently with a cotton ball and a little rubbing alcohol. If cleaning doesn’t help, the sensor itself may need replacement.

Gas Dryers: Check the Gas Supply

If you have a gas dryer that’s running but not heating, verify that the gas valve is fully open and that your home’s gas supply is working normally. It sounds basic, but it’s easy to accidentally bump the valve behind the dryer. If gas is flowing correctly, the problem is more likely the igniter, flame sensor, or gas valve solenoid — all of which a technician can test and replace.

If you ever smell gas near your dryer, turn off the unit immediately, leave the house, and call your gas company. Don’t try to troubleshoot a gas smell yourself.

The Dryer Is Getting Old

Most dryers have a lifespan of 10 to 13 years. If yours is getting up there in age, it may simply be losing efficiency — taking longer and longer to do the same job it used to do quickly. As motors, belts, and heating elements age, performance degrades gradually. If you find yourself calling for repairs frequently, it might be worth comparing repair costs against replacing the unit.

Our post on Should I Repair My Dryer or Buy a New One? walks through the cost math in detail — worth a read before making any big decisions.

What to Do Right Now

Here’s a quick checklist to run through before calling for service:

• Clean the lint trap — and wash it if you use dryer sheets regularly.

• Check the exterior vent for airflow while the dryer runs.

• Inspect the flexible duct for kinks or damage.

• Try running a smaller load to rule out overloading.

• Wipe down the moisture sensors with rubbing alcohol.

• Make sure the dryer is plugged into a dedicated 240V outlet (for electric) or the gas valve is open (for gas).

If you’ve checked all of the above and the dryer is still taking forever, it’s time to bring in a tech. Continuing to run a dryer with a blocked vent or a failing heating element can lead to bigger problems — including a fire risk.

Get Your Dryer Fixed Fast in Grand Rapids, Kalamazoo, and Lansing

At HomeHalo Appliance Repair, we diagnose and fix slow-drying dryers every day — all brands, both gas and electric, residential and commercial. Our technicians serve families and businesses across Grand Rapids, Kalamazoo, Lansing, and throughout West Michigan.

Don’t let wet laundry pile up. Book your dryer repair online or give us a call at (616) 367-5131. We’ll get to you fast and get your laundry routine back on track.