
A
TRS 4000
[email protected] - (800) 322-4434 - (734) 769-3939 x 5
Troubleshooting Guide
PROBLEM
POTENTIAL CAUSE
VERIFY CAUSE
CORRECTIVE ACTION
RESISTANCE
There is no resistance.
Timing belt spring break.
Lay unit on left side
and inspect the spring.
Refer to
Timing Belt
Springs Replacement
instruction.
Poly-v belt may have come off.
Remove covers and
inspect poly-v belt.
Refer to
Poly-V Belt
instruction.
Resistance feels too
hard.
Retaining rings on the Footpedal
Support Tube may be causing
resistance on S/N 411001-411943.
Lay unit gently on left
side and see if there
are retaining rings.
Refer to
Footpedal
Support Tube Retaining
Ring Removal
instruction.
A belt may be out of alignment.
Inspect all belts to
verify they are not
misaligned.
Refer to
Poly-V Belt &
Timing Belt
instructions.
Jerky arm movement.
A newer user getting used to the
feel of the motion.
Is there a slight “jerky”
feeling in arms at
higher Workloads?
This is normal operation
and most users will
develop a smoother
motion over time.
DISPLAY &
ELECTRONICS
For all problems, start
with fresh batteries.
A low battery.
Low battery indicator
may be illuminated.
Refer to
Battery Changing
instruction.
“8”s appear in all LCD
display windows.
A low battery.
Replace batteries.
Refer to
Battery Changing
instruction.
Not displaying WATTS,
METS, CALORIES, or
STEPS PER MINUTE
Ribbon cable not installed correctly
or cut.
Verify cable is
installed correctly and
does not have any
cuts.
Refer to
Ribbon Cable
instruction.
VR Sensor (METS, WATTS,
CALORIES, TIME) and/or Hall
Effect Sensor (TOTAL STEPS,
STEPS PER MINUTE, TIME) gaps
are off or have cut wire.
Lay unit on left side
and inspect the sensor
cables. VR sensor is
the black & white wire,
and Hall Effect sensor
is red, white & black.
Refer to
Hall Effect
and
VR Sensor
instructions.
The sensor magnet may be
missing.
Check for the magnet
on the EC disk (VR
sensor-magnet) and
pivot disk (Hall Effect
sensor-magnet).
Refer to
Magnet-EC &
Pivot Disks
instruction.
Display PC board may be bad.
If facility has additional
units, install bad
display on another unit
to verify that the
display is bad.
Refer to
Display Removal
instruction.
Workload is not
displaying correctly.
Ribbon cable not installed correctly
or cut.
Inspect the cable to
verify it is installed
correctly and does not
have any cuts.
Refer to
Ribbon Cable
instruction.
Contact wipers of the EC plunger
plate not making contact with
workload level PCB board.
Remove cover and
inspect wiper on EC
plunger plate to verify
it is touching the
workload level PCB.
Refer to
EC Plunger Plate
instruction.
Workload level PCB board may be
bad.
Replace board.
Refer to
Workload Lever
PCB
instruction.
Display lights up but
does not operate.
Ribbon cable connector not
plugged in correctly.
Remove display to
investigate.
Refer to
Display
Installation
instruction.
The button doesn’t
operate the functions
The button may be broken.
Replace the display.
Summary of Contents for TRS 4000
Page 1: ...NuStep TRS 4000 Recumbent Cross Trainer Service Manual Complete...
Page 2: ......
Page 8: ......
Page 125: ...42119 Figures 4 1 05 E...
Page 126: ...42119 Figures 4 1 05 F...
Page 127: ...42119 Figures 4 1 05 G...
Page 128: ......
Page 129: ......