Problem summary
A grinding noise from your Samsung heat pump tumble dryer usually appears during the drying cycle. The sound may be constant, intermittent, or worse when the drum is full. Grinding typically signals wear or damage to rotating or moving parts inside the machine.
Likely causes
Based on engineer reports for this fault pattern, the most common causes are:
Fan (around 37% of cases) The circulation fan or heat exchanger fan may have loose components, debris trapped inside, or worn bearings. A worn fan typically produces a grinding or scraping sound as it rotates.
Motor (around 24% of cases) The motor that turns the drum can develop worn bearings or internal damage, resulting in grinding noise during operation.
Drum and bearings (around 20% of cases) The drum itself or the rear bearing may be worn. Drum bearings support the rotating drum; when they wear, metal-on-metal contact creates grinding sounds.
Why this needs an engineer
All three likely causes involve sealed electrical or mechanical components, bearing systems, or parts that cannot be safely accessed or repaired without specialist tools and training. Attempting DIY work risks:
- Causing further damage to the motor, drum, or fan assembly
- Exposure to mains voltage
- Damage to sealed refrigeration circuits in the heat pump system
- Safety hazards from rotating parts
Disassembling the dryer casing exposes you to live electrical components. Any repair to the motor, fan bearing, or drum bearing requires safe disconnection of power, proper part removal, and specialist reassembly.
What to do now
Stop using the dryer and call a qualified engineer. Running the machine with a failing fan, motor, or bearing will cause progressive damage and may increase the risk of a breakdown that costs more to repair.
When you contact an engineer, describe the grinding noise and when it occurs (during heat-up, mid-cycle, or at the end). This helps the engineer narrow down which component is most likely at fault.
If you're in Northern Ireland, SMC Services can usually book a repair within 2-3 working days.
Preventing future problems
Empty pockets fully before drying, as loose items can lodge in the fan or drum seals. Keep the intake and exhaust vents clean. Do not overload the drum, as this puts extra strain on the motor and bearings.