LifeFitness 3500 Treadmill No ZX Error

Probable Cause

A) Damaged cable.
B) Display console is bad.
C) Heatsink control board is bad.

Corrective Action

A) Inspect all cables for damage or crimping. Repair or replace any crimped or damaged cables.

B) Test unit with known good display console. Replace console if necessary.

C) Test unit with known good heatsink control board. Replace heatsink control board if necessary.

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