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Humidifier Drum Won't Turn

The 3 most common part(s) or condition(s) which contribute to the symptom Humidifier drum won't turn are listed below. Check or test each item and watch any available videos. If you are still unable to solve the problem you may need to do additional research and troubleshooting. Remember, with our 365 Days. Period.® return policy you can return any part for any reason. So, go ahead and buy it to try it. No other parts retailer offers this unconditional return policy.


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For the symptom you selected, these are the most common parts or causes, ordered by the likelihood of fixing the symptom.

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Drive Motor

If the drum does not rotate and the drive motor is not turning, check to be certain the motor is getting power from the humidistat. If the motor is working but doesn't seem to have the strength to turn the drum, replace the drive motor. If the drive motor is clicking or only seems to spin the drum partway before giving up, replace the drive motor.

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Wheel and Belt Kit

If the drum does not rotate the wheel and belt kit might need to be replaced. As the belt gets brittle or stretches out it has to be replaced. The wheel and belt kit includes the roller(s) because they often wear out at the same time.

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Drive Belt

If the drum does not rotate the drive belt might have broken or stretched out too much. If the motor is still working and the drive belt is in place but seems to be slipping, replace the drive belt. If the drive belt is broken it will have to be replaced. A broken drive belt usually does not indicate any other problem, over time they simply dry out and break.

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