Tredmil not working Error 4

Barbara requested 3 quotes from Appliance Repairmen in Upper Coomera

Husband who is a little overweight was using when the error notice came up. has not worked since.

NordicTrak Treadmill is not powering up
The Treadmill is approximately 8 years old. It has a transformer (?) that...

Sportsamico Treadmill Repair
Treadmill belt stopped during my last run and will not start again.

Treadmill need electrical repairs
Motor speeds up after a few minutes of being turned on without prompting....

Lifestyle treadmill screen says belt is moving but it isn't
the screen says the belt is working but physically it isn't and all this time...