Eaton viking dryer model ED214W449 .Loud hum when you try to star

Open the door and depress door switch have someone activate start button when humming rotate drum if it starts and continues to run replace motor

Shut down the device and then reboot again

in 2020 I had a few repairs on my Eaton/Viking dryer ED314W429 1 - replace heater coil - replaced with GE coil kit P# WE25M27K
2 - replace snapped belt - replaced with part# WG03F00846
It takes a while to figure things out DIY, however it's running again..
This link helped me a lot with repair of the element. When I had to replace the belt it was 10x faster due to experience.
https://dontai.com/wp/2016/10/24/viking-auto-dryer-t-eaton-company-heating-element-replacements/
Let's keep these old simple machine running if we can! Cheers Gerald Calgary AB.

See if you can spin the drum with little resistance or is it really hard to spin?

Check to see if you can spin the drum fairly easy. Also, try to leave the door open, hold the door switch in, and then start the dryer and give the drum a spin to see if it starts.

Try this, tape the button down press start and give the drum a push to see if it will spin. If you can jump start it that way, you will need to replace the motor.

that is the safety switch probably need to be replaced. or make sure the door is closing all the way.

You most likely have a bad motor. Try to spin the dryer drum by hand with the door open, door swich held or taped down, and while pressing start. This will likely get the motor going. If this works try closing the door and starting it again. If it works now the motor may have just had a hard time starting do to it's position or the drum's postition. If it only works when you help it out manually you have a bad motor or maybe a sticky drum/jammed belt/etc. Good luck!

do you have an ohmmeter or voltmeter? check them for continuity it will tell you if there are good or not?

you may have a bushing problem on the drive motor due to dirt or flint. you can check that by removing the belt and try rotating the motor manually. see if it is easy to turn or not.check also the bushing if you can move the shaft sideways..if it has a slack then its a bushing problem. replace the drive motor.