A dryer making loud noise is rarely a dryer that is about to die. Most of the time the racket comes from the load (zippers, coins, a bedsheet rolled into a ball), from a cabinet that rocks on an uneven floor, or from a coin that slipped down the lint chute and is now riding the blower wheel. All three are free to check and take minutes. The sounds that matter are the ones that stay when the drum is empty and the dryer is level: a steady squeal, a screech, or a metal-on-metal grind. Those come from rollers, the idler pulley, the belt, or the drum bearing, and on this site they go to a technician.
This page sorts a loud dryer by the sound it makes. If what you hear is a rhythmic squeak that speeds up with the drum, the dryer squeaking page goes deeper on rollers and belts. If the noise arrived with a drum that no longer turns, start with dryer not spinning. Every other symptom lives in the dryer troubleshooting guide.
Which noise is it? A loud dryer sorted by sound
| Cause | Likelihood | Difficulty | What to do |
|---|---|---|---|
| The load: zippers, buttons, coins, or sheets balled up (rattle, thump) | Very likely | Easy (no tools) | Empty pockets, fasten zippers, turn items inside out, load large items loosely |
| Dryer not level, a leg missing, or the cabinet touching the washer or a wall (pounding, knocking) | Very likely | Easy (no tools) | Level all four feet, clear the top, leave a gap on each side |
| Object down the lint chute hitting the blower wheel, or caught in the drum seam (knock, scrape) | Likely | Easy (no tools) | Unplug, pull the lint screen, look into the housing and along the drum edges |
| Rollers flat-spotted after the dryer sat unused (soft thump that fades) | Possible | Easy (no tools) | Run a cycle; the thump should disappear within minutes |
| Exhaust duct loose, rattling against the cord or the wall | Possible | Moderate | Check the duct connection behind the dryer is secure and not touching anything |
| Worn drum rollers, idler pulley, or glazed belt (squeal, screech) | Possible | Professional recommended | Stop heavy loads; book service if it stays with an empty drum |
| Worn drum bearing or shaft, blower, or motor (grind, metal scrape) | Rare | Professional required | Unplug the dryer and book service |
Thumps, rattles, and knocks: the load and the floor come first
Run the dryer empty for a few minutes before anything else. If the noise goes away, the load was making it, and every manufacturer page on this subject says the same thing. Whirlpool’s product help lists zippers, buckles, buttons, rivets, loose coins, paper clips, and pens as the usual rattle, and adds that sheets, curtains, and bedspreads can roll into a ball that thumps and makes the whole dryer vibrate; its advice is to add those items loosely and to shake out any bunching from the wash. LG says to fasten zippers and buttons and turn zippered items inside out, and warns that coins, keys, or lighters left in a pocket are more than a noise problem: they can damage the drum and are a fire hazard. Tennis shoes thump too. Whirlpool wants them on a drying rack, not loose in the drum.
A thump that is loudest in the first few minutes and then fades is a different story, and a reassuring one. When a dryer sits unused, the drum support rollers can flatten where they touch the drum. Whirlpool’s page says the flat spot thumps until the rollers warm up and regain their shape, and LG lists roller thumping among the normal sounds you notice more after the dryer has been idle. Give it one full cycle before you worry.
If the empty drum is quiet but the dryer pounds or knocks with a load in it, push on the top corners of the cabinet. Any rocking means the feet are not level or a leg is missing, and Whirlpool notes a dryer that teeters on an uneven floor will make noise on its own. Samsung’s method is to retract the leveling feet fully, check with a carpenter’s level, and extend only the feet that need it with a wrench, as little as possible. Then look at what the cabinet touches. Items on top of the dryer, a mop leaning against it, a washer that shakes the dryer during its spin, or odds and ends in a pedestal drawer all show up as a rattle that seems to come from inside. Whirlpool’s fix is simple: clear the top, leave space between the washer and the dryer. Samsung adds the exhaust vent to the list: if the duct was shifted during installation, it can wiggle and rattle, or knock against the power cord.
One more place to look before you call anyone. Whirlpool says small items such as coins and socks can fall into the lint chute housing and hit the blower wheel as it spins, which produces a knock on every rotation. Unplug the dryer, remove the lint screen, shine a flashlight into the housing, and lift anything you find out with a dryer lint brush. Whirlpool also wants the screen back in place before the dryer runs again, which is good advice: the screen is what keeps the next coin out. Scraping, as opposed to knocking, usually means an object is riding in the seam where the drum meets the front or rear bulkhead. Turn the dryer off and look along both edges of the drum with the light; a paper clip, a screw, or a bra wire sitting in that gap is a common find.
Squeals, screeches, and grinds: when the dryer itself is wearing
Noise that survives an empty drum, a level cabinet, and a clean lint chute is coming from the parts that carry the drum. Samsung groups squealing, squeaking, and grinding together and says the first thing to try is a lighter load: those sounds often appear when the drum is overloaded or the clothes came out of the washer soaking wet, and its advice is to stop the cycle, dry fewer items, and let the washer spin them out first. If the squeal persists with a normal load, which Samsung describes as about four wet towels, it tells you to request service. LG is more specific about what has worn: a loose drum shaft, lubricant that has hardened, or rollers and a belt past their life produce a high-pitched squeal or screech, like metal scraping, and that is a service call. LG also notes that a brief high-pitched sound as the drum starts or reverses is just the belt tightening, not a fault.
A grind or a metallic scrape that keeps time with the drum is the most serious of the bunch. It points to a drum bearing or the rear drum support, a roller that has worn down to its shaft, or debris in the blower wheel, and running the dryer in that state chews up the parts around it. Unplug it and have it looked at. The same goes for a blower that rumbles or vibrates on its own, which you can sometimes hear as a hum that got much louder than it used to be. A low hum or buzz by itself is normal: Samsung says it is the blower motor pulling air through the dryer, and LG says a low hum or gurgle on its heat pump and condenser models comes from the compressor and the drain pump. On a gas dryer, a click several times a cycle is the gas valve opening, and Whirlpool lists it as normal. None of the diagnostic steps on this page touch the gas supply; if you ever smell gas, leave the room and call the gas supplier or a licensed technician.
Airflow is the quiet partner in several of these noises. A restricted exhaust makes the blower work harder and the dryer run hotter, which is why a loud dryer that also takes longer to dry deserves the dryer vent cleaning guide before any part gets replaced.
Repair or Replace?
Most loud dryers cost nothing to quiet down: a pocket emptied, four feet on the floor, a coin fished out of the lint chute. Rollers, an idler pulley, and a belt are wear items that a technician replaces as a routine job, and on a dryer that heats well and is otherwise sound that repair is worth doing. The decision gets harder when the grind turns out to be a drum bearing or a motor on an older machine, or when the noise came with a burning smell or a dryer that has been running hot for a long time. At that point the dryer repair cost guide walks through where a repair stops making sense.
Frequently Asked Questions
Why is my dryer suddenly making a loud noise?
A noise that starts on one load is almost always that load: a coin, a key, a zipper, or sheets rolled into a ball. Empty the drum and run the dryer for a few minutes. If it is quiet empty, the load was the cause. If the noise started after the dryer was moved, check that it is level and that the duct behind it is not rattling.
Is it safe to keep using a dryer that is making a loud noise?
For rattles and thumps that come from the load or the floor, yes, once you have found the cause. Stop using it if you hear a metal-on-metal grind or a screech with an empty drum, if there is any burning smell, or if the drum has slowed down, and have it serviced.
Why does my dryer thump for the first few minutes and then stop?
The drum support rollers can flatten where they rest against the drum when the dryer sits unused. Whirlpool and LG both describe this: the flat spot thumps until the rollers warm up and round out again, usually within one cycle, and no repair is needed.
What does a grinding noise in a dryer mean?
A grind that keeps time with the drum points to a worn drum bearing or rear support, a roller worn down to its shaft, or debris in the blower wheel. LG describes the worn-part sound as a squeal or screech like metal scraping. Unplug the dryer and book service rather than running it that way.
Why is my dryer so loud when it is empty?
An empty dryer that still thumps, scrapes, or squeals has ruled out the load, so the sound is the machine or its surroundings: feet that are not level, a duct touching the cord or the wall, an object in the drum seam or the lint chute, or worn rollers and belt. Samsung treats thumping with an empty drum as a reason to request service.
Can a clogged vent make a dryer louder?
It can make the blower work harder and the dryer run hotter, which turns an ordinary hum into something more noticeable and shortens the life of the parts behind the noise. If the dryer is loud and also slow to dry, clean the vent before replacing anything.
These checks separate a noisy load or an uneven floor from a worn part. They are not a substitute for a qualified technician once the sound is coming from the rollers, the belt, the blower, or the drum bearing, or on any gas dryer where you smell gas.
