When a residential clothes dryer starts up quietly but begins emitting an irritating squeaking or screeching noise after running for just a few minutes, the issue is typically caused by thermal expansion. As the internal metal components and roller shafts heat up during operation, tight tolerances, dry sleeve bearings, or warped plastic rollers expand and create intense friction that generates a high-pitched squeak once the machine reaches operating temperature. You can troubleshoot thermal noise easily by checking component play. You can verify that your corrective action is successful when disassembling the cabinet, applying high-temperature silicone grease to dry shafts, and replacing worn support rollers eliminates the heat-induced squeaking permanently.
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