Nautilus Mobia, Service Manual, Page: 17 / 39

17
Replacing the Motor Control Board
!
To reduce the risk of electrical shock, always unplug the power cord and wait 5 minutes before cleaning, maintaining or repairing this machine.
Tools Required: #2 Phillips Screwdriver, 5 mm hex head wrench
1. Unplug Power Cord and wait 5 minutes for capacitors to discharge residual electricity.
2. Remove 4 button head screws from the Rear Step and set aside.
3. Remove Rear Step.
4. Remove 4 Phillips head screws from Motor Control Board and set aside.
5. Disconnect all wires and cables, noting locations of each.
6. Remove the Motor Control Board and replace.
7. Re-install 4 Phillips head screws removed in step 4 into new Motor Control Board.
8. Connect all wires and cables to new Motor Control Board.
Replacing the Motor Control Board
Always unplug power cord from treadclimber®
fitness machine to wall outlet, and wait five
minutes before performing repairs.
Figure 1
Tools Needed:
#2 Phillips screwdriver
5mm Allen wrench
Instructions:
1. Unplug power cord and wait 5 minutes for
capacitors to discharge residual electricity.
2. Remove 4 button head screws (figure 1) from
rear step and set aside.
3. Remove rear step.
4. Remove 4 Phillips head screws from Motor
Control Board (Figure 2) and set aside.
5. Figure 2
6. Remove motor control board and replace.
7. Re-install 4 Phillips head screws removed in
step 4 into new Motor Control Board.
8. Connect all wires and cables to new Motor
Control Board (Figure 3).
Replacing Parts
Disconnect all wires and cables (Figure 3),
noting locations of each.
Figure 3
AC Power Connections (labeled on board):
Black (Line)
White (Neutral)
Green (Ground)
Drive Motor Connections (labeled on board)
Red (+)
Black (-)
Tach Wire Plug
I/O Cable
Replacing the Motor Control Board
Always unplug power cord from treadclimber®
fitness machine to wall outlet, and wait five
minutes before performing repairs.
Figure 1
Tools Needed:
#2 Phillips screwdriver
5mm Allen wrench
Instructions:
1. Unplug power cord and wait 5 minutes for
capacitors to discharge residual electricity.
2. Remove 4 button head screws (figure 1) from
rear step and set aside.
3. Remove rear step.
4. Remove 4 Phillips head screws from Motor
Control Board (Figure 2) and set aside.
5. Figure 2
6. Remove motor control board and replace.
7. Re-install 4 Phillips head screws removed in
step 4 into new Motor Control Board.
8. Connect all wires and cables to new Motor
Control Board (Figure 3).
Replacing Parts
Disconnect all wires and cables (Figure 3),
noting locations of each.
Figure 3
AC Power Connections (labeled on board):
Black (Line)
White (Neutral)
Green (Ground)
Drive Motor Connections (labeled on board)
Red (+)
Black (-)
Tach Wire Plug
I/O Cable
Replacing the Motor Control Board
Always unplug power cord from treadclimber®
fitness machine to wall outlet, and wait five
minutes before performing repairs.
Figure 1
Tools Needed:
#2 Phillips screwdriver
5mm Allen wrench
Instructions:
1. Unplug power cord and wait 5 minutes for
capacitors to discharge residual electricity.
2. Remove 4 button head screws (figure 1) from
rear step and set aside.
3. Remove rear step.
4. Remove 4 Phillips head screws from Motor
Control Board (Figure 2) and set aside.
5. Figure 2
6. Remove motor control board and replace.
7. Re-install 4 Phillips head screws removed in
step 4 into new Motor Control Board.
8. Connect all wires and cables to new Motor
Control Board (Figure 3).
Replacing Parts
Disconnect all wires and cables (Figure 3),
noting locations of each.
Figure 3
AC Power Connections (labeled on board):
Black (Line)
White (Neutral)
Green (Ground)
Drive Motor Connections (labeled on board)
Red (+)
Black (-)
Tach Wire Plug I/O Cable