Quick Answer
If your dryer is making loud squeaking, grinding, scraping, thumping, or rumbling noises, check for loose items, overloaded loads, uneven legs, blocked airflow, and lint buildup first. If the noise continues with an empty drum, the cause may be worn drum rollers, idler pulley, belt, glides, bearings, blower wheel, motor, or a foreign object inside the cabinet. Stop using the dryer if you smell burning, see sparks, hear metal grinding, or the drum will not turn.
Symptoms at a Glance
Squeaking
Likely cause: Worn drum rollers, idler pulley, belt, glides, or bearing.
Homeowner action: Stop if the squeak gets louder or repeats every cycle.
Grinding
Likely cause: Metal contact, worn glides, damaged drum seal, loose object, or failing bearing.
Homeowner action: Remove loose items and schedule service if grinding continues.
Heavy thumping
Likely cause: Overloaded drum, bunched bedding, flat-spotted roller, or drum support problem.
Homeowner action: Try a smaller load and check that the dryer is level.
Buzzing or humming
Likely cause: Motor strain, blower obstruction, stuck drum, or electrical issue.
Homeowner action: Turn the dryer off if the drum does not rotate.
Noise with burning smell
Likely cause: Belt friction, motor overheating, lint near heat, or wiring issue.
Homeowner action: Stop using the dryer and book professional diagnosis.
Repair Difficulty Meter
DIY difficulty: Low for checking pockets, load balance, lint screen, leveling, and exterior airflow.
Estimated time: 10-30 minutes for safe external checks.
Tools needed: Flashlight, level, vacuum, lint brush, and owner's manual.
Safety risk: Moderate because dryers combine heat, electricity, moving parts, lint, and, on gas models, fuel.
When to call a professional: Call when the dryer squeaks every cycle, grinds, smells hot, will not turn, trips a breaker, or needs disassembly.