No ZX Error on LifeFitness 3500 Treadmill

Probable Cause

  1. Damaged cable.
  2. The display console is bad.
  3. The heatsink control board is bad.

Corrective Action

  1. Inspect all cables for damage or crimping. Repair or replace any crimped or damaged cables.
  2. Test unit with known good display console. Replace the console if necessary.
  3. Test unit with known good heatsink control board. Replace heatsink control board if necessary.
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