A dryer making noise is telling you which part is wearing out, and once you learn the language it is fairly easy to read. A high squeal or squeak is the idler pulley or the rear drum bearing. A rhythmic thump that fades as the dryer warms up is a drum roller with a flat spot, or a belt. A low grind or scrape is the motor bearings, the front drum glides, or something caught between the drum and the cabinet. A rattle or buzz is loose change, a screw in the blower housing, or lint packed into the blower wheel.
This guide covers electric dryers, which is what we repair. It maps each sound to the likely part, explains what you can check yourself with the dryer unplugged, and says clearly which noises you can live with for a week and which mean stop the machine now.
Table of Contents
Dryer making noise: the noise-to-part map at a glance
Start here. Match the sound and you will know what to look for, and how much time you have. Every dryer making noise fits one of the rows below.
| Sound | Most likely part | Keep using it? |
|---|---|---|
| High squeal or squeak, constant while drum turns | Idler pulley bearing, rear drum bearing, felt drum seal | Short term, yes. It will get louder. |
| Rhythmic thump, worse when cold, fades as it warms | Drum support roller with a flat spot, or a worn belt | A few loads, yes. Rollers go from thump to seize. |
| Low grind or scrape, steady | Motor bearings, front drum glides, object between drum and bulkhead | Grinding motor: no. Glides: briefly. |
| Rattle, buzz or clatter, changes with load | Coins or screws in the blower, lint-packed blower wheel, loose duct | Clear the object first. A lint-packed blower is a fire risk. |
| Loud bang then silence, drum stops or spins free | Broken belt, or the idler pulley has let go | No. The motor may still run; unplug it. |
Squealing and squeaking
The squeal usually starts as an occasional chirp and becomes a steady, high note that follows the drum. There are three usual sources, and they are all in the drive path.
- Idler pulley. A small plastic or metal wheel on a spring arm that keeps tension on the belt. Its bearing dries out and screams. This is the most common squeal and one of the cheapest parts on the dryer.
- Rear drum bearing. On many Whirlpool, Maytag and Kenmore dryers the drum rides on a ball-and-socket bearing at the back. When the grease is gone it squeals and, later, grinds. On Samsung and LG dryers the equivalent is a pair of rear rollers.
- Felt drum seal. A strip of felt around the front and rear of the drum lets it turn quietly against the cabinet. When it wears through, metal rubs on metal and you get a squeak that changes when you press on the door.
A squeal is safe to run for a week or two while you arrange the repair. It is not safe to ignore for a season, because a seized idler or bearing takes the belt with it and can overheat the motor. Of every dryer making noise we see, the squeal is the most forgiving.
Thumping
Empty the drum and run it. If the thump is gone, it was a shoe or a heavy zipper. If the thump is still there and rhythmic, roughly once per revolution, it is a drum support roller. The rollers are rubber wheels under the drum, and after ten years of heat they develop a flat spot. The thump is loudest on a cold machine and softens as the rubber warms, which is why it seems to come and go. Rollers are replaced as a set, along with the idler pulley, because they wear together.
A frayed or glazed belt gives a similar thump, usually with a slapping edge to it, and you will sometimes find black rubber dust inside the cabinet. With the dryer unplugged, reach in and turn the drum by hand. A belt problem feels like a catch once per turn; a roller problem feels like a wobble. A dryer making noise only under load is usually the belt rather than the bearing.
Grinding and scraping
A grind is a heavier, lower sound than a squeal, and the sources are more serious. Motor bearings grinding sounds like it is coming from underneath, it does not change when you press on the drum, and it usually comes with a burning-dust smell as the motor heats. A dryer with a grinding motor should be unplugged and left until it is repaired, because the motor is running on a 240-volt circuit and the next stage is a stalled, overheating winding.
Worn front drum glides scrape rather than grind. They are the small plastic or felt pads the front of the drum rides on, and when they wear through the drum drops onto the bulkhead and rubs. You can often see a shiny worn line inside the cabinet at the front edge of the drum. Glides are inexpensive and replaced with the rollers and belt as a maintenance kit.
The other grind is a foreign object. An underwire from a bra, a nail or a coin slips through the gap at the front of the drum and gets caught between the drum and the housing, and it scrapes on every turn. With the dryer unplugged, shine a flashlight into the gap around the drum and feel along the felt seal. Fishing it out with needle-nose pliers ends the noise. Of all the reasons for a dryer making noise, a trapped object is the cheapest to fix and the most damaging to ignore.
Rattling, buzzing and clicking
A rattle that changes with the load is almost always something loose in the blower housing, the plastic fan at the bottom of the dryer that pushes air out the vent. Coins, screws and hair clips fall through the lint filter slot and end up spinning in the fan. Unplug the dryer, pull the lint filter and use a flashlight and a flexible grabber to fish out whatever is at the bottom of the chute.
A rattle that does not change with the load, together with longer dry times, is a blower wheel packed with lint or coming loose on the motor shaft. That combination is worth taking seriously. A blower that cannot move air lets heat build inside the cabinet, and lint around a hot element is how dryer fires start; the NFPA’s dryer safety page lists failure to clean as the leading factor in dryer fires.
If your dryer is also running two cycles to dry a load, our guide on why a dryer takes two cycles to dry covers the airflow side of the same problem. A dryer making noise and drying slowly at the same time nearly always has an airflow problem behind the sound.
A buzz on start-up that lasts a second and stops is normally the motor relay pulling in. A buzz that continues with the drum not turning is a motor that cannot start, and it should be unplugged. Clicking with each rotation is usually a loose baffle, one of the plastic fins inside the drum, or a hard object stuck in a baffle’s screw hole.
From the van: about half the rattles we get called to are a handful of change and a couple of screws in the blower housing, and the other half are the blower wheel itself. We check the vent on every one of those calls, because the lint that jammed the wheel came from somewhere.
Appliance Experts repairs electric dryers across London and Southwestern Ontario, 6 AM–9 PM, seven days a week — usually same day. The service call is free with the repair, and every job carries a 90-day parts and labour warranty.
When to stop using it and call a pro
Some noises can wait for a convenient appointment. These cannot, and the dryer should be unplugged until it is looked at: A dryer making noise like any of these has moved from a nuisance to a fire and damage risk.
- Grinding from underneath, especially with a hot or burnt smell.
- A buzz with the drum not turning, or a bang followed by a free-spinning drum.
- Any rattle accompanied by long dry times or a very hot cabinet, which points to a lint-blocked blower.
- A squeal that has turned into a scraping, metallic grind at the rear of the drum.
Most dryer noises are fixed with a maintenance kit: rollers, idler pulley, belt and glides, replaced together in one visit. Our dryer repair techs carry those kits for the common brands, plus blower wheels and motors. In Southwestern Ontario the service fee is $90 to $140 and comes off the repair, and a typical dryer repair runs $160 to $340 for parts and labour, with a 90-day warranty on both. If you are east of us, dryer repair in Cambridge and Kitchener runs on the same schedule as London, usually same day. The dryer is a heavy, 240-volt appliance, so if the repair involves pulling the drum, we would rather you let us do it.
That single visit resolves most dryer making noise calls we take across London and St. Thomas.
Before you book, note whether the sound changes with the load, whether it is present on the air-only setting with no heat, and whether it started suddenly or built up over weeks. A sudden noise usually means an object or a broken part, while a noise that has crept up over months points to wear in a bearing, roller or pulley. Those details let a technician arrive with the right maintenance kit for your model and finish in one visit.
Frequently asked questions
Why is my dryer squeaking when it runs?
A squeak or squeal that follows the drum is usually the idler pulley bearing, the rear drum bearing or a worn felt drum seal. The idler pulley is the most common and is an inexpensive part. It is safe to run for a short while, but a seized pulley or bearing will eventually take the belt and strain the motor.
Why is my dryer making a thumping noise?
First empty the drum and run it, since shoes and heavy zippers thump. If the rhythmic thump remains, a drum support roller has a flat spot or the belt is frayed. The thump is loudest on a cold dryer and softens as the rubber warms. Rollers, belt and idler are usually replaced together.
What does a grinding noise in a dryer mean?
A steady grind from underneath that does not change when you press the drum is the motor bearings, and the dryer should be unplugged until repaired. A scrape at the front of the drum is worn drum glides. A scraping that changes with each turn is often a coin, nail or underwire caught between the drum and the housing.
Is it safe to keep using a noisy dryer?
A squeal or a mild thump can usually wait a week or two for a repair. A grinding motor, a buzz with the drum not turning, or a rattle combined with long dry times and a hot cabinet should stop the dryer now. The last one points to a lint-blocked blower, which is a fire risk.
How much does it cost to fix a noisy dryer?
In Southwestern Ontario the service fee is typically $90 to $140 and is applied to the repair. A drum maintenance kit with rollers, idler pulley, belt and glides, or a blower wheel replacement, usually falls between $160 and $340 for parts and labour. A motor replacement is at the top of that range or slightly above.
The bottom line
A dryer making noise is naming its worn part: squeal for the idler or drum bearing, thump for a roller or belt, grind for the motor or glides, rattle for something loose in the blower. Empty the drum, unplug the dryer and check for coins and foreign objects before anything else. Grinding, a buzzing motor that will not turn, or a rattle with long dry times are the signs to stop using it and call. We repair electric dryers across London and Southwestern Ontario, 6 AM to 9 PM, seven days a week, usually same day. Call (519) 900-3010 or book online and we will make it quiet again.