The short answer
A new noise from the FDE line nearly always comes from something the drum turns on — rollers, an idler pulley, the blower wheel — rather than from the motor itself. On this page the load and the blower come first, because both can be cleared in minutes and neither needs a tool. The sound and when it happens name the part: a thump once per drum revolution, a squeal that rises with speed and a rattle only on start-up are three different jobs.
What you are seeing on the FDE line
- A high squeal that rises as the drum comes up to speed — The idler pulley or a dry roller bearing. It usually appears gradually over weeks.
- A rattle or ticking that comes and goes — Coins or a zip pull in the blower wheel, or an object trapped in the lint duct.
- NEAR MISS — the dryer hums but the drum does not turn — That is a broken belt or a seized part, not a noise fault. Stop the machine: running it makes the damage worse.
Causes, most likely first on the FDE line
- The load, the level or something in the drum — Ranked first because it costs nothing: a belt buckle, a coin in the drum seam, a machine that rocks on an uneven floor. All three make alarming noises with nothing broken.
- An object in the blower wheel or the lint duct — Coins, buttons and zip pulls get past the lint screen and into the wheel. The rattle changes as the load tumbles, which is the tell.
- The idler pulley or the belt — A dry idler or a glazed belt squeals and slips. The pitch rises with speed, which separates it from anything turning at drum speed.
- Drum support rollers worn or dry — Last of the mechanical causes: likely, but the most work to reach, so everything easier gets eliminated above it.
Check in this order, and why that order
- First — run the machine empty for a minute and listen — An empty drum removes the load as a variable. While it is stopped, check the machine sits solid on all four feet.
- Then — take the lint screen out and look down the housing — A torch and a vacuum reach most of it. Coins in the blower wheel rattle in step with the wheel, not with the drum.
- Only then — listen for whether the pitch follows the motor or the drum — Squeals that rise with motor speed belong to the idler and belt; anything tied to the drum turn does not.
- STOP here if the next check needs a panel off or a meter on live terminals — Everything above can be done with nothing dismantled; past it the checks need test equipment.
Before you open anything
Safety
Unplug the dryer or switch off its breaker before any panel comes off — a capacitor can hold a charge after the power is off, and the heater terminals stay live whenever the machine is connected. If yours is a gas model and you smell gas: do not switch anything on or off, leave the building, and call the gas utility or emergency services from outside; do not look for the leak yourself. Never run the machine with the vent disconnected into the room, and never bypass a thermal cut-out to get a load finished.
Where the owner job ends
Call when the noise is a grind that worsens with running time, when the drum has free play at the front, or when the belt has to come off to find the source. On the FDE line, call rather than continue if the cabinet has to be opened to reach the rollers. Stop and call immediately if the noise comes with a burning smell or with a scorch mark anywhere on the load — that combination is a lint and heat problem, not a bearing.
Other faults covered for the FDE line
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
