Pro Form E3 Error Message

My proform treadmill sat for a few years. When I cleaned it off and restarted it it wouldn't run properly the motor would surge and then stop and I would get either an E3 Error message or an E4 error message. I'm not sure if it's the motor or the controller any ideas?


  • I would test motor with a 12v or 18v battery,just inplug motor leads from lower board and touch them to battery if motor spins its a mcb and if not its a motor.
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