Dryer Making Loud Noise Common Causes and Quick Fixes for Oakville Residents
A dryer is designed to make everyday life easier — but when it starts rattling, squealing, or thumping, it can quickly become a source of frustration. Loud dryer noises are often early warning signs of worn parts, loose components, or airflow issues. Ignoring them can lead to more serious mechanical failures.
At Oakville Appliance Repairs, located at 1230 White Oaks Blvd in Oakville, our technicians frequently repair dryers that make unusual sounds. This guide explains what the noises mean, what you can do to reduce them, and when to call a professional.
Understanding Dryer Noise
Some dryer sounds are completely normal, such as light humming during rotation or a clicking noise as the drum starts and stops. However, loud or repetitive noises are not typical. They often point to parts that are wearing out or require adjustment.
Common abnormal sounds include:
- Squealing: caused by a worn drum belt or roller.
- Rattling: caused by loose screws, coins, or buttons trapped inside.
- Thumping: caused by an unbalanced drum or flat roller wheels.
- Grinding: caused by a failing motor or bearing.
- Buzzing: caused by a faulty motor switch or clogged blower wheel.
Understanding the type of sound helps identify the source faster.
Common Causes of Dryer Noise
Worn Drum Rollers
Drum rollers support the dryer drum as it spins.
Cause: Over time, these rollers wear down, causing a thumping or rumbling sound each time the drum rotates.
Fix: A technician can replace the worn rollers and lubricate the new ones to restore smooth operation.
Damaged Drum Belt
The belt connects the motor to the drum.
Cause: Continuous use can stretch or fray the belt, leading to squealing or slapping noises as it moves.
Fix: If you hear a high-pitched squeal or burning smell, stop using the dryer and have the belt replaced immediately to prevent motor strain.
Faulty Idler Pulley
The idler pulley maintains tension on the drum belt.
Cause: A seized or worn pulley produces squeaking or grinding noises during operation.
Fix: Replacement of the pulley and proper belt alignment will eliminate the noise.
Worn Drum Bearings
Drum bearings allow the drum to spin freely and quietly.
Cause: Worn bearings cause a scraping or grinding noise, especially near the back of the dryer.
Fix: These bearings must be replaced by a technician to prevent further drum damage.
Blower Wheel Obstruction
The blower wheel circulates hot air through the dryer.
Cause: Lint, small objects, or debris can block the wheel, producing a rattling or vibrating sound.
Fix: Unplug the dryer and have the blower housing inspected and cleaned.
Foreign Objects Inside the Drum
Cause: Coins, buttons, or zippers can get trapped between the drum and housing.
Fix: Check clothing pockets before drying and inspect the drum regularly. Persistent rattling may require disassembly to remove trapped objects.
Loose Screws or Mounting Parts
Over time, vibrations can loosen screws inside the cabinet or along the vent system.
Fix: Tighten any visible screws and ensure panels are secure. Loose panels are a common source of rattling noises.
Failing Drive Motor
If you hear grinding or buzzing from the base of the dryer, the motor bearings may be failing.
Fix: A technician can test the motor with a multimeter and replace it if it’s drawing excess current or showing resistance.
What You Can Check Before Calling a Technician
Before scheduling a repair, try these quick checks:
- Make sure the dryer is level on all sides.
- Remove and shake the lint screen — clogged screens can cause overheating and noise.
- Look inside the drum for coins or metal objects.
- Check that the dryer is not touching walls or cabinets.
- Run the dryer empty — if the noise continues, it’s likely a mechanical issue.
If the sound remains after these checks, stop using the appliance to prevent further damage.
Why You Shouldn’t Ignore Dryer Noise
Noisy operation is often the first sign of wear. Ignoring it can lead to costly repairs later, including motor failure, broken belts, or damaged drums. A professional inspection ensures problems are corrected before they affect other components or cause overheating.
How a Technician Fixes Noisy Dryers
During service, a certified technician will:
- Disassemble the cabinet and drum to inspect rollers, belts, and bearings.
- Clean and lubricate moving parts.
- Replace worn components and realign the belt system.
- Check the blower wheel and motor for balance and wear.
- Test the dryer’s operation to confirm quiet, efficient performance.
Professional repair restores normal sound levels and prevents future breakdowns.
Preventing Future Noise Issues
To keep your dryer running quietly and efficiently:
- Clean the lint filter after every load.
- Avoid overloading the drum.
- Inspect and clean the vent system every six months.
- Keep the dryer level on a solid surface.
- Schedule yearly maintenance to replace worn parts before they fail.
Proper care helps your dryer last longer and operate quietly.
When to Replace Instead of Repair
Replacement may be the best option if your dryer:
- Is more than twelve to fifteen years old.
- Requires repeated motor or drum repairs.
- Has significant rust, drum cracks, or frequent overheating.
A technician can help you compare repair costs with replacement value to make the best decision for your home.
Summary
A noisy dryer is often an early warning of a simple issue — worn rollers, loose belts, or trapped objects. Acting quickly can prevent costly damage and restore quiet, efficient performance.
For expert dryer repair in Oakville, contact Oakville Appliance Repairs at 1230 White Oaks Blvd, Oakville, Ontario. Call 437-970-5596 for same-day or next-day service.
Frequently Asked Questions
Why is my dryer making a thumping sound?
Flat or worn drum rollers are the most common cause. They can create a rhythmic thump as the drum rotates.
Why does my dryer squeal when it starts?
A worn idler pulley or stretched belt can squeal during startup. Replacing these parts usually resolves the noise.
Can I still use my dryer if it’s noisy?
You can, but it’s not recommended. Running a noisy dryer can worsen wear on internal parts and lead to breakdowns.
Is dryer noise dangerous?
Not usually, but persistent grinding or burning smells may indicate a failing motor or friction issue that should be checked immediately.
How often should I service my dryer?
Once a year is ideal. Regular cleaning and part replacement prevent noise, improve airflow, and reduce fire risk.