LifeFitness 4500 Treadmill Start Up Error

Probable Cause

  1. Poor connection of Opto (speed) sensor.
  2. Opto (speed) sensor is out of adjustment or bad.

Corrective Action

  1. Inspect cable and connection of Opto (speed) sensor. Repair and replace damaged cable or connection of the Opto(speed) sensor.
  2. Inspect the alignment of the Opto (speed) sensor. The sensor should be centered evenly over the target. Adjust or replace the Opto (speed) sensor if necessary.
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