I have an SI3 error code
Includes Keys, Iron man, Alliance, Milestone, Encore, Health Trainer, some Smooth models, some Cardio Zone models, Galyans, and several other brands.
Meaning of code:
Treadmill was powered up while it was still folded up. There is a false signal being sent from the fold up sensor to the controller. A false signal is being sent from the console to the controller.
Step 1
Replace the fold up sensor.
Step 2
Check the wiring from the console to the controller and the wiring from the sensor to the controller.
Step 3
Check for a defective or failed F1 fuse.
Step 4
Test the motor with the motor testing help topic on our troubleshooting page.
If problem persists, replace the motor controller.