This video shows the basic assembly process for the 2023 NordicTrack Commercial series treadmills.
NORDICTRACK COMMERCIAL 1250, COMMERCIAL 1750 & COMMERCIAL 2450
***Be sure the wire connectors are connected fully. Make sure the latch on one connector is on the same side as the catch on the matching connector. The wire harness connectors may have a red dot on them. Line up the red dots when connecting the harnesses to help make sure the connectors are in the correct orientation. The connectors will also make a clicking sound when fully connected and the color of the wires in the harness will match.
NTL14124, NTL17124, NTL19124