Stairmaster 8G Gauntlet Service Manual page 92

2. Enter "Maintenance Mode" and scroll using the
(+/-) buttons to "Brake Test" then press (OK)
Note:
See the video here
Embedded screens.
Caution: this steps releases the brake.
Make sure you are not on the steps.
3. The display will read "Brake Test ON", press the
(+/-) key to turn the brake "OFF", the steps should
move and the brake should release.
4. Once the steps start to move, turn the brake "ON
& OFF" using the (+/-) keys to see if the steps
move consistently or not
If the steps release, make sure you hear the brake
click (turn on & off ) consistently.
for instructions for
Page 92