Stairmaster StepMill SM5 - Electrical Troubleshooting; Power Trace and No Resistance

Electrical Troubleshooting
Power Trace
1. No Resistance When Stepping
Remove the right side panel to view
the three LED’s on the lower PCB
board.
Begin moving the staircase.
If all three of the red LEDs on the relay
board are illuminated but there is no
resistance, inspect the alternator
brushes (SM24557) if worn or the
alternator (SM22900).
050-0154
050-0161
050-0201
050-0105
050-0039
050-0038
050-0236 (ASSY)
SM23545
050-0232
Last revised 10/5/15