Nautilus StairMaster ClubTrack 2100 Series Service Manual page 41

No Elevation Movement
Treadmill will not
elevate.
Is a
No
"Grade Move
Error"
present?
Yes
Unplug P18, and
check for 118VAC
between the blue
and brown wires.
Is the
No
voltage
good?
Replace fuse F2
Yes
Configuration
Plate Assembly.
Turn off power.
Short pins 1 and 2
of Q8 on the VSD
Board.
Turn power back
on.
Does the
Replace the
No
Actuator Motor
Actuator Motor.
run?
Yes
Replace the VSD
Board.
End
®
ClubTrack 2100 Series Treadmill Service Manual
on the
Cycle the power.
Does the
No
treadmill
elevate?
Yes
Upgrade the
firmware.
Perform keypad
test: CLEAR, 6, 1.
End
Does
GRADE ? and
GRADE ?
work?
Replace the
Controller/
Processor PCB.
Troubleshooting Flowcharts
No
Yes
Replace the
Keypad Assembly.
End
37