If your dryer smells like burning while running, act quickly but stay calm — that odor usually points to a mechanical problem rather than a house fire. The most common cause is excessive lint blocking the lint filter or vent, which can ignite or overheat the heating element, so clean the lint screen and venting first. Next most likely is a worn or slipping drive belt that heats from friction; if the belt is frayed or stretched, check that the drum and idler pulley turn freely and replace the belt. A shorted main control board can also produce a burning smell, so inspect the board for burn marks or melted components. Less likely but still possible are a stuck blower or a worn blower belt, and a seized idler pulley or idler assembly that lets the belt slip and smoke. You can enter your model number on RepairClinic.com to find the exact replacement drive belt, idler, blower parts, control board, or lint-screen parts that fit your dryer.
01 - Universal Dryer Lint Filter
Excessive lint build-up in the dryer can be a fire hazard. The element or burner can cause the lint to catch on fire. It is recommened to clean out the dryer and dryer venting at least once a year.
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A drive belt that is stretched, worn or frayed can slip producing a burning smell. If the belt is damaged also check that the drum and idler pulley turn freely.
A dryer's main control board controls the voltage being sent to all of the appliance's electrical components. The board itself can become shorted and produce a burning smell. You should inspect the board for any burn marks or a shorted components and replace if necessary.
Some dryer models use a belt to run the blower. If the blower gets stuck or the blower belt is worn, loose and slipping, it can produce a burning smell. Confirm the blower turns freely and replace the belt if needed.
The idler pulley keeps tension on the belt to prevent it from slipping. If the idler wheel is damaged or stops turning, the belt can slip on the drive pulley, producing a burning smell. If your idler pulley is damaged or doesn't turn, you should replace it. Replacing the drive belt is also recommended.
The idler pulley assembly keeps tension on the belt to prevent it from slipping. If the idler wheel is damaged or stops turning, the belt can slip on the drive pulley, producing a burning smell. If your idler pulley assembly is damaged or doesn't turn, you should replace it. Replacing the drive belt is also recommended.