[ameyring]

To try to understand motor movement to figure out why the dryer is noisy, I isolated the motor and it doesn't run, just hums when power is applied. With power disconnected, I can't turn the shaft. Is the shaft supposed to be loose enough to be turned with my fingers?

Could humming also come from a defective electronic board?

Thanks.

[richappy]

Maybe you dropped a screw in the motor, it was running before! If ok, your motor bearings are bad. Motor shaft should turn and have no lateral play. If so, just order a new one.

[rsuch]

Yes, it should turn freely, especially if the belt is removed. It is apparently bound up, which would also cause a humming sound when applying power to it.

[ameyring]

Hi,
Thanks for replying to my question. On a whim, I tested the motor while isolated and it seemed to run great. Perhaps something was stuck in there before or there was too much lint (I vacuumed the motor). Thus, I reinstalled the motor, testing it now and then with no problem. After dryer was put back together, motor returned to a humming state and eventually quit. After a few minutes, I could restart it, but then it would quit again. Is this the sign of a tired motor in need of replacement or could there be too much stress somewhere.
Thanks!

[richappy]

You have a bad motor, shaft should turn with almost no friction, like skating on wet ice.