Buzzing coming from motor area of treadmill

Question edited for clarity and what the make and model actually is.

This is likely to be the Start / Run Capacitor on the motor. It gives the motor and electrical jolt and ten keeps it running.

https://manualzz.com/doc/1740950/proform-crosswalk-831.297231-owner-s-manual

https://www.google.com/search?q=proform+831+motor+humming

..

Good information, you said enough, a lightening storm does the greatest harm to electronics ever. You probably need the manufacturer to help you. https://www.proform.com

What area of the treadmill is the hum coming from? It could be a number of things.

Use WD40. Or go to a nearby hardware store an purchase a rust remover. Aply either one and wait for a bit. Then remove screws.

lube the deck belt, you have deck worn, proceed in according with the instruction manual maintenance. 2) check the drive belt and replace it if necessary and tight 3) tes the input voltage motor, if there are the motor need repair or replace 4) test the output voltage from main board, for input voltage for the main motor, if there are NOT, the board is faulty.
Try if you can RUN the software calibration for diagnose and troubleshooting.
sincerely. God bless you.

Hello,
Those symptons (humming/buzzing ¬ starting) are 99 out of a 100 times a sign of a motor that has locked up.

Gene

Really, I have had my crosswalk for over 20 years. I can't complain. I am passing it on to my son and getting a NEW Proform treadmill. Their longevity has sold me.....

wheel bearing sounds like a hum its most likley that make sure to get that fixed

Speed sensor.

Is your water on ??if yes than you may have a bad timer.