Octane Fitness Q45 Elliptical Resistance Servo Motor Replacement
part used in this video with correct white plug for Q45 (affiliate link): https://amzn.to/3RbtJFp
this video will show you how to take apart, find the servo motor and replace it.
if you see ERR 1 on the screen, typically that error code is tied to the resistance servo motor as it is in my opinion the weakest part in the entire system.