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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.