Life Fitness 9100 User manual

Models 9100, 9500HR, 9700HR,
and 9700HR w/Decline Treadmills
Customer Support Services
SERVICE MANUAL

Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
INTRODUCTION
HOW TO USE SERVICE MANUAL AND CONTACT CUSTOMER SUPPORT SERVICES
This service manual is applicable to Treadmill Models TR 9100, TR 9500HR, TR 9700HR, and TR 9700HR
w/Decline. Note: Information represents typical configuration and may differ slightly from actual equipment.
The Service Manual provides recommendations of safe and efficient approaches to problem situations. This
manual is separated into six sections.
INTRODUCTION
TABLE OF CONTENTS
Section I
TROUBLESHOOTING GUIDES
Section II
DIAGNOSTIC MODE
Section III
"How To..." SERVICE AND REPAIR GUIDES
Section IV
ELECTRONIC OVERVIEW
WIRING BLOCK DIAGRAMS
Section V
PARTS IDENTIFICATION
Section VI
MISCELLANEOUS INFORMATION
Refer to TABLE OF CONTENTS for section topics.
When an operating problem occurs, refer to trouble shooting guides and diagnostic mode to isolate cause . When
applicable, guides are listed by problem symptom followed with suggestions of probable cause(s) .
Once source of problem is identified, consult "How To..." guides for recommended repair procedures. "How To..."
sub-sections are organized by replaceable part or assembly name. For convenience, sub-section lists
recommended “Tools Required” to complete specific function. Refer to PARTS IDENTIFICATION to identify proper
name and number of part to order for repair of equipment.
A reproducible FAX order claim form is given in COMMUNICATING BY TELEFACSIMILE for convenient ordering of
service parts.
To order, contact Life Fitness Customer Support Services.
Via FAX - 24 hrs. /day, 7 days/week.
Via telephone - Monday through Friday from 8:00 AM to 7:00 PM ( CST).
Via post - At address cited.
To speed Life Fitness Customer Support Services response to your needs, please provide the following information.
1. Model number
2. Serial number
3. Symptom of problem
4. Part name and number to order (if known)
Before installing part, review "How To..." and follow step by step procedures recommended to install part safely and
efficiently. If you have questions or comments please telephone, FAX or, write us. We are:
LIFE FITNESS - CUSTOMER SUPPORT SERVICES
10601 Belmont Avenue; Franklin Park, IL 60131; U.S.A.
Telephone: [phone] Toll-free: 800.351.3737
FAX: [phone] Toll-free: 800.216.8893

Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TABLE OF CONTENTS
SECTION I TROUBLESHOOTING GUIDES PAGE
STRIDING BELT SLIPS DURING FOOTFALL.....................................................................2
MAXIMUM SPEED IS REDUCED.........................................................................................2
KNOCKING SOUND AT REAR OF MACHINE.....................................................................2
KNOCKING SOUND COMING FROM DECK.......................................................................2
RUBBING SOUND FROM UNDERNEATH MACHINE.........................................................2
SQUEAKING NOISE.............................................................................................................3
LOUD GROANING SOUND FROM FRONT OF MACHINE.................................................3
LOUD GROANING SOUND ON FOOTFALL........................................................................3
DISPLAY DOES NOT ILLUMINATE WHEN POWERED ON...............................................3
DISPLAY OVERLAY KEYS ARE NOT RESPONDING WHEN PRESSED..........................4
UNIT RESETS RANDOMLY OR PAUSES...........................................................................4,5
NO POWER..........................................................................................................................5,6
WAX LEAK............................................................................................................................6
STRIDING BELT IS TRAVELING BEYOND TRACKING LIMITS.........................................6,7
STRIDING BELT NOT CENTERED......................................................................................7
STRIDING BELT MISALIGNMENT.......................................................................................7
LIFEPULSE HEART RATE DOES NOT RESPOND ............................................................7
DISPLAY READS HEART RATE WITH HANDS REMOVED...............................................8
NO CHEST STRAP DETECTED ..........................................................................................8
ERRATIC HEART RATE READINGS...................................................................................8
MOTOR CONTROLLER COMM BAD: CHECK HARNESS BETWEEN LIFT
AND CONTROLLER –P9/P3 ...........................................................................................9
MOTOR CONTROLLER COMM BAD: CHECK POWER TO MOTOR CONTROLLER.......9
WAX AND LIFT BOARD COMM BAD: CHECK POWER ON LIFT......................................9
BOTH LIFT AND CONTROLLER COMM BAD: CHECK HARNESS BETWEEN
CONSOLE AND LIFT –P1 AND P1 .................................................................................9
SYSTEM CONFIGURED TWO WIRED................................................................................9
INCLINE INOPERATIVE.......................................................................................................9
HOME SWITCH ERROR......................................................................................................10
NEGATIVE SWITCH ERROR...............................................................................................10
NO AC POWER ERROR......................................................................................................10
WAXER UNPLUGGED.........................................................................................................10
WAXER NO AC POWER......................................................................................................10
SMART STOP UNPLUGGED...............................................................................................10
FRAME CLOCK COMM BAD................................................................................................11
FRAME TAG UNPLUGGED..................................................................................................11
SCI ERROR ..........................................................................................................................11
DYNAMIC CURRENT TRIP..................................................................................................11
STATIC CURRENT TRIP......................................................................................................11
CHECKSUM ERROR XXXX.................................................................................................11
NOTIFY MAINTENANCE MOTOR CONTROLLER ERROR................................................11
NOTIFY MAINTENANCE INCLINE TIMEOUT ERROR .......................................................12
NOTIFY MAINTENANCE HOME SWITCH ERROR.............................................................12
NOTIFY MAINTENANCE NEGATIVE SWITCH ERROR.....................................................12
NOTIFY MAINTENANCE FRAME TAG UNPLUGGED........................................................12
UNABLE TO ATTAIN TARGET SPEED...............................................................................12
NOTIFY MAINTENANCE SPEED SENSOR ERROR...........................................................12
NOTES..................................................................................................................................13

Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TABLE OF CONTENTS - Continued
SECTION II DIAGNOSTIC MODES
DISPLAY CONSOLES ..........................................................................................................2
INITIAL SETTING OF REAL TIME CLOCK..........................................................................4
DIAGNOSTIC ENTRY...........................................................................................................5
MAINTENANCE CONFIGURATION-QUICK ENTRY REFERENCE....................................6
DIAGNOSTICS: SUB-CATEGORIES ...................................................................................7
DIAGNOSTICS: SYSTEM COMMUNICATION (COMM) TEST ...........................................8
DIAGNOSTICS: SYSTEM TEST MENU...............................................................................10
DIAGNOSTICS: SYSTEM TEST – SPEED AUTOMATIC MODE........................................11
DIAGNOSTICS: SYSTEM TEST – SPEED MANUAL MODE...............................................12
DIAGNOSTICS: SYSTEM TEST – CONTROLLER ERRORS MODE..................................13
DIAGNOSTICS: SYSTEM TEST – INCLINE AUTOMATIC MODE......................................14
DIAGNOSTICS: SYSTEM TEST – INCLINE MANUAL MODE ............................................15
DIAGNOSTICS: SYSTEM TEST – INCLINE ERROR MODE ..............................................16
DIAGNOSTICS: SYSTEM TEST – WAXER AUTOMATIC MODE.......................................17
DIAGNOSTICS: SYSTEM TEST – WAXER MANUAL MODE .............................................18
DIAGNOSTICS: SYSTEM TEST – WAXER ERROR MODE ...............................................19
DIAGNOSTICS: SYSTEM TEST – BELT / DECK MODE.....................................................20
DIAGNOSTICS: SYSTEM TEST – LIFE PULSE MODE ......................................................21
DIAGNOSTICS: SYSTEM TEST – TELEMETRY MODE.....................................................22
DIAGNOSTICS: SYSTEM TEST – SMART STOP MODE...................................................23
DIAGNOSTICS: SYSTEM TEST – DISPLAY TEST MODE.................................................24
DIAGNOSTICS: SYSTEM TEST – REAL TIME CLOCK MODE..........................................25
DIAGNOSTICS: SYSTEM TEST – FRAME TAG EEPROM MODE.....................................26
DIAGNOSTICS: SYSTEM TEST – DISPLAY CONSOLE EEPROM TEST MODE..............27
DIAGNOSTICS: SYSTEM TEST – LIFECENTER TEST MODE..........................................28
DIAGNOSTICS: SYSTEM TEST – FITLINXX TEST MODE ................................................29
DIAGNOSTICS: INFORMATION MENU...............................................................................30
DIAGNOSTICS: INFORMATION – SYSTEM STATISTICS MODE......................................31
DIAGNOSTICS: INFORMATION – SOFTWARE VERSION MODE.....................................32
DIAGNOSTICS: INFORMATION – MAIN MOTOR INFO MODE .........................................33
DIAGNOSTICS: INFORMATION – LIFT MOTOR INFO MODE...........................................34
DIAGNOSTICS: INFORMATION – WAX MOTOR INFO MODE..........................................35
DIAGNOSTICS: INFORMATION – CLOCK INFO MODE ....................................................36
DIAGNOSTICS: INFORMATION – SYSTEM ERROR MODE..............................................37
DIAGNOSTICS: INFORMATION – MAINTENANCE INFO MODE.......................................38
DIAGNOSTICS: MAINTENANCE MENU..............................................................................39
DIAGNOSTICS: CONFIGURATION MENU..........................................................................40
DIAGNOSTICS: CONFIGURATION – MANAGER CONFIGURATION MODE....................41
DIAGNOSTICS: CONFIGURATION – MANUFACTURER CONFIGURATION MODE........43
DIAGNOSTICS: CONFIGURATION – CLOCK CONFIGURATION MODE..........................44
NOTES..................................................................................................................................45

Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TABLE OF CONTENTS - Continued
SECTION III HOW TO..REPLACE…
STRIDING BELT AND DECK................................................................................................2
ADJUST STRIDING BELT TRACKING ...............................................................................4
ADJUST STRIDING BELT TENSION...................................................................................5
DRIVE BELT .........................................................................................................................6
DRIVE MOTOR.....................................................................................................................7
FRONT ROLLER...................................................................................................................8
REAR ROLLER.....................................................................................................................9
LIFESPRING ABSORBERS..................................................................................................10
ANTI-STATIC TINSEL ..........................................................................................................11
ANTI-SCUFF PADS..............................................................................................................12
WAX MOTOR........................................................................................................................13
POWER MODULE................................................................................................................14
WAX BAG .............................................................................................................................15
LIFT MOTOR.........................................................................................................................17
MOTOR CONTROLLER.......................................................................................................18
WAX AND LIFT PCB.............................................................................................................19
FRAME BOARD....................................................................................................................20
LEVELER ASSEMBLY..........................................................................................................21
ACCESSORY CUP HOLDERS.............................................................................................22
LINE CORD ..........................................................................................................................23
DISPLAY BOARD PCB.........................................................................................................24
STOP SWITCH.....................................................................................................................25
TELEMETRY RECEIVER AND JACK...................................................................................26
MAIN WIRE HARNESS.........................................................................................................27
DISPLAY CONSOLE CONTROL PANEL ............................................................................28
OVERLAY BEZEL.................................................................................................................29
SMART STOP SYSTEM.......................................................................................................30
HANDLEBAR ASSEMBLY....................................................................................................31
DIGITAL HEART RATE SENSORS......................................................................................32
CLEAN THE WAX NOZZLE..................................................................................................34
NOTES..................................................................................................................................35

Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TABLE OF CONTENTS - Continued
SECTION IV ELECTRONIC OVERVIEW
ELECTRONIC OVERVIEW – DISPLAY CONSOLE PCB ....................................................2
ELECTRONIC OVERVIEW – MOTOR CONTROLLER PCB...............................................5
ELECTRONIC OVERVIEW – POWER FACTOR CONTROL PCB......................................7
ELECTRONIC OVERVIEW – WAX LIFT PCB .....................................................................8
ELECTRONIC OVERVIEW – SMART STOP PCB...............................................................11
ELECTRONIC OVERVIEW – FRAME TAG PCB.................................................................12
WIRING BLOCK DIAGRAM..................................................................................................13
NOTES..................................................................................................................................14
SECTION V – PARTS INDENTIFICATION
MODEL AND SERIAL NUMBER IDENTIFICATION.............................................................2
TR9100..................................................................................................................................3
TR9500HR ............................................................................................................................6
TR9700HR ............................................................................................................................9
TR9700HR W/DECLINE.......................................................................................................12
NOTES..................................................................................................................................15
SECTION VI – MISCELLANEOUS INFORMATION
PREVENTATIVE MAINTAINENCE TIPS..............................................................................2
UNPACKAGING INSTRUCTIONS........................................................................................3
INSTALLATION INSTRUCTIONS.........................................................................................4
COMMUNICATING BY FAX .................................................................................................9
FAX FORM............................................................................................................................10
NOTES..................................................................................................................................11

©1999 Brunswick Corporation. All rights reserved. Life Fitness is a registered trademark of Brunswick Corporation.
Zone Trainer and Heart Rate Zone Training are trademarks of Brunswick Corporation. Any use of these trademarks, without the express
written consent of Brunswick Corporation, is forbidden.
M051-00K58-A008
12-99

1
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
SECTION I
TROUBLESHOOTING GUIDE
Section I

2
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Striding Belt slips during
footfall. Striding belt slips on front roller
during stall test. Check striding belt & re-tension as necessary. See How…To Adjust Belt Tension.
Maximum speed is
reduced. User is pushing striding belt. Instruct users not to push striding belt in either
direction.
Wax system malfunction. Inspect spray pattern between 8" (200mm) and
16" (400mm).
If not, verify wax nozzle is clean, hoses are not
kinked, wax bag is not empty, or wax is
contaminated.
Striding belt/deck malfunction.
The deck laminate worn
through or the underside of
striding belt glazed over (hard,
glossy).
Replace belt and deck. See How To…Replace
Striding Belt.
Insufficient power source. Plug treadmill into a dedicated 20amp circuit.
Refer to the Operations Manual.
Knocking sound at rear of
machine. Faulty rear roller bearings. Replace rear roller assembly.
Wax build up on rear roller. Run unit for 10 hours to break-in the treadmill.
Knocking sound coming
from deck. Life Springs not positioned
correctly and/or loose mounting
hardware.
Reposition or tighten life springs.
Rubbing sound from
underneath machine. Foreign objects may be stuck
underneath the machine. Inspect underneath striding belt and machine. Remove any debris or objects that may cause
interference with the treadmill.
Tinsel is installed incorrectly. Reposition tinsel on the outside of the striding
belt.

3
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Squeaking noise. Drive motor belt tensioning pin
may be squeaking. Spray pin with lubricant.
Drive motor belt may be worn
or damaged. Replace drive motor belt. See How To… Replace Drive Motor Belt.
Loud groaning sound
heard from front of
machine while elevating.
Lift mechanism pivot points are
dry. Lubricate pivot points.
Faulty lift motor. Replace the lift motor. See How To…Replace
Lift Motor.
Loud groaning on footfall. High friction between deck and
striding belt. Refer to Slowdown Section.
Display does not illuminate
when machine is powered
on.
Insufficient power source. Plug treadmill into a dedicated amp circuit.
Refer To The Operations Manual.
Loose 10 pin connection at
display console or wax/lift
control board.
Check all electrical connections for proper
attachment.
Damaged main harness wire
connection. Replace wire harness. See How To…Replace Main Wire Harness.
Faulty display console or Wax/
Lift Board. Verify if 8VDC is present at P1 pin, 3-4 and 12VDC at P1 pin 9.
If yes, replace Display Console. See How To…
Replace Display Console PCB.
If no, replace Wax/Lift Board. See How To…
Replace Wax/Lift PCB.
Section I

4
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Display overlay keys are
not responding when
depressed.
Loose ribbon connection(s). Verify that the two ribbon connections are
attached to the display PCB.
If attached, reseat the connection and verify the
operation.
Worn or defective overlay
assembly. Replace overlay assembly. See How To… Replace Overlay Assembly.
Smart Stop Sensor. Refer to diagnostics to verify the operation of
the smart stop sensor.
Unit resets randomly or
pauses. Insufficient power source. Plug treadmill into a dedicated amp circuit.
Refer to the Operations Manual.
Damaged ground prong on line
cord. Replace line cord. See How To… Replace Line Cord.
Line cord improperly seated in
electrical outlet. Inspect power connection at electrical outlet and at machine for proper contact.
Emergency stop magnet not
engaged. Re-engage the emergency stop magnet.
Towel or magazine may be
making contact with stop
switch while user is running.
Move all possible obstructions off display
console and handlebar.
Loose connections at display
console. Secure all connections at display console PCB.
Stop switch is activated with
very light pressure or returns
slowly after being pressed.
Replace stop switch. See How To…Replace
Stop Switch.

5
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Unit resets randomly or
pauses. Stop switch cable not making
proper contact. Re-seat cable from stop switch and verify the operation.
Pinched main wire harness. Replace the main wire harness. See How
To…Replace Main Wire Harness.
Open ground path. Using voltmeter, check all points for continuity:
console pan screws, console mounting screws,
handlebar screws, and handrail mounting
screws to frame with respect to ground. Ground
must be a non-painted surface.
Inspect Smart Stop system. Disconnect the 4 pin connector and verify if
problem exists. If no, replace smart stop PCB.
See How To…Replace Smart Stop PCB.
No Power. On/Off switch. Turn the switch to the ON position.
Insufficient power source. Plug treadmill into a dedicated amp circuit.
Refer to the Operations Manual.
Using a voltmeter, verify power at outlet. If no
power exists, reset circuit breaker at panel.
Damaged line cord. Replace line cord. See How To…Replace Line
Cord.
Line cord improperly seated in
socket. Inspect power connection at wall outlet and at machine for proper contact.
Power module. Verify 120VAC at wax/lift board 3 pin
connector. If no, replace power entry module
See How To…Replace Power Entry Module.
If yes, verify 8 VDC at P1 pins 3 and 4, and
12VDC at P1 pin 9. If voltage is present,
replace display console PCB. If not, replace
wax /lift PCB.
See How To…Replace Display Console PCB
and/or Wax /Lift PCB.
Section I

6
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
No Power. 3 Amp Circuit breaker. Verify that circuit breaker is not open. If open,
reset circuit breaker.
Faulty display console. Refer to Display Console Symptom.
Wax Leak. Loose hose connections. Inspect hose connections and secure as
necessary, replace if necessary.
Faulty connection at bag. Replace wax bag and plastic coupling.
Wax bag is torn. Replace wax bag. See How To…Replace Wax
Bag.
Wax pump does not shut off. Replace wax/lift PCB. See How To…Replace
Wax/Lift PCB.
Wax passes through pump
and slowly drips from nozzle. Replace wax motor. See How To…Replace Wax Motor.
The Striding Belt is
traveling beyond the
tracking limits.
Striding belt needs to be re-
tensioned or tracking needs
adjustment.
Refer to belt tensioning or tracking adjustment
procedure in operation or service manual.
Worn striding belt or user
pushing belt. Center striding belt according to belt centering technique. See How To...Adjust And Tension
The Striding Belt.
Striding belt folded over. Verify wax in bag. Replace if necessary. See
How To…Replace Wax Bag.
Verify the wax is not contaminated (lumpy).
Replace wax bag and wax if contaminated. See
How To…Replace Wax Bag.
Verify the wax nozzle is not clogged. Clean
nozzle if clogged. See How To…Replace Wax
Nozzle.

7
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
The Striding Belt is traveling
beyond the tracking limits. Striding belt folded over. Refer to “Wax Manual” in the diagnostics
section of this manual to verify if the wax
pump is functioning properly. Replace if
necessary. See How To…Replace Wax
Pump.
Replace the belt and deck. See How To…
Replace Striding Belt.
Striding belt not centered. Striding belt tension or tracking
needs to be adjusted. Adjust striding belt . See How To…Adjust And Tension The Striding Belt.
Striding belt mis-alignment,
but properly tensioned. Improper walking/running. Notify Club Manager.
Lifepulse Heart Rate System
does not respond or
improper heart rate reading
or "Reading Heart Rate"
appears in the message
center for more than 2
minutes without giving heart
rate reading.
Dirty handlebar sensors. Wipe sensors with a clean soft cloth.
Inadequate contact with all four
sensors. Verify a firm grip of all four sensors (two on top, two on bottom of handlebar).
User running over 4.5 mph
(7.5kph). For accurate heart rate reading, user must slow down to less than 4.5 mph (7.5kph).
User may have an unusual
heart condition. Have different people grasp sensors to detect any variance.
Loose connections at display
console and handlebar. Secure connections at display console and handlebar.
Faulty heart rate sensors.. Replace handlebar sensors. See How To…
Replace Heart Rate Kit.
Faulty display console PCB. Replace display console PCB. See How To…
Replace Display Console PCB.
Section I

8
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Display reads a continuous
heart rate reading when
hands are removed.
Harness wires pinched at
handlebar or handrail. Replace handlebar assembly if the wires are damaged. See How To…Replace Handlebar
Assembly.
No Chest Strap detected. Chest strap sensors not making
good contact with body of user. Adjust chest strap and moisten sensors to make better contact with skin.
User is out of monitoring range. Move within 3 ft (1 meter) of receiver
Loose connection at receiver. Check connection on receiver. See How
To...Replace Telemetry Receiver.
Faulty chest strap. Replace chest strap.
Faulty receiver. Verify 5VDC at P6 pin 1. If yes, replace
transmitter. If no, replace display console
PCB.
Telemetry turned OFF. Enter Manager’s Configuration mode and turn
telemetry to ON.
Receiver is turned slightly
sideways. Position receiver so it’s horizontal with the console. See How To...Replace the Telemetry
Receiver.
Bad connection at Telemetry
cable and receiver. Check cable jack and receiver connection.
Erratic Heart Rate readings. Treadmills are located less than
8” (203 mm) apart. Position treadmills to recommended distances. Refer to the Operations Manual.

9
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Display reads:
MOTOR CONTROLLER
COMM BAD: CHECK
HARNESS BETWEEN LIFT &
CONTROLLER -P9/P3
Loose wire harness. Reset connections at wax/lift PCB connector
P9 and motor controller PCB connector P3.
Display reads:
MOTOR CONTROLLER
COMM BAD: CHECK
POWER TO MOTOR
CONTROLLER.
Bad power entry module or
motor controller. Verify line voltage at P1 on the Motor Controller. If voltage exists, replace motor
controller. See How To Replace… Motor
Controller.
If no voltage exists, replace power entry
module. See How To Replace…Power Entry
Module.
Display reads:
WAX/LIFT BOARD COMM
BAD: CHECK POWER ON
LIFT
Bad Wax/ Lift PCB. Verify if the LED 7 (Green) and LED 8 (Red)
is lit on the Wax/Lift PCB. If no, replace
Wax/Lift PCB. See How To Replace…Wax
/Lift PCB.
Display reads:
BOTH LIFT and
CONTROLLER COMM BAD:
CHECK HARNESS
BETWEEN CONSOLE & LIFT
-P1/P1
Loose wire harness. Reset connection at Wax/Lift PCB
connectorP1 and Display Console PCB
connector P1.
Display reads:
SYSTEM CONFIGURED TWO
WIRED
Motor Controller is not jumped
correctly. Reset jumper at JM1 on both pins.
Display reads:
INCLINE INOPERATIVE –
CONTINUE IF DESIRED
Level or negative switch. Refer to the Diagnostics section “incline” to
verify the operation. If replacement is
required. See How To Replace…Level or
Negative Switch.
Inspect wire harness for damage, replace if
needed.
Lift motor adjustment incorrect. See “How To…Replace the Lift Motor” and
refer to the step in the procedure that
describes 13-3/4” tube adjustment.
Lift Motor. Cycle motor in incline manual and verify
120VAC at P7 on Wax/Lift PCB. If not,
replace lift motor. See How To Replace…Lift
Motor.
Section I

10
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Display reads:
HOME SWITCH ERROR Lift switches wire harnesses
are backward (applies only to
TR97).
Switch the wire harnesses on the negative
and level switches.
Display reads:
NEGATIVE SWITCH ERROR Lift switches wire harnesses
are backward (applies only to
TR97HR Decline).
Switch the wire harnesses on the negative
and level switches.
Display reads:
NO AC POWER ERROR Wax/Lift PCB. Replace Wax/Lift PCB.
Display reads:
WAXER UNPLUGGED Defective wire harness or Wax
Motor. Cycle motor in waxer manual mode in diagnostics and verify 120VAC at P6 on
Wax/Lift PCB.
If voltage exists, verify that the cable from the
wax/lift PCB to wax motor has continuity. If
continuity exists replace wax motor. See How
To Replace… Wax Motor. No continuity,
replace wire harness. If no voltage exists,
replace wax/lift PCB. See How To
Replace…Wax/Lift PCB.
Display reads:
WAXER NO AC POWER
Broken, damaged or unplugged
harness or Defective Wax/Lift
PCB.
Reset or replace waxer harness.
Wax Motor or wire harness. Cycle motor in waxer manual mode in
diagnostics and verify 120VAC at P6 on
Wax/Lift PCB.
If voltage exists, verify that the cable from the
wax/lift PCB to wax motor has continuity. If
continuity exists replace wax motor. See How
To Replace…Wax Motor. No continuity,
replace wire harness. If no voltage exists,
replace wax/lift PCB. See How To Replace…
Wax/Lift PCB.
Display reads:
SMART STOP UNPLUGGED
(TR9500HR and TR9700HR
are equipped)
Broken, damaged, or
unplugged harness. Reset or replace smart stop harness.

11
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Display reads:FRAME
CLOCK COMM BAD Frame board or bad wire
harness Verify continuity on wire harness. If continuity exists, replace frame tag PCB. See How To…
Replace Frame Tag PCB.
If continuity does not exist, replace wire
harness.
Display reads:
FRAME TAG UNPLUGGED Disconnected wire harness. Reconnect wire harness.
Display reads:
SCI ERROR Bad wire harness connection. Bad wire harness or noise. Reseat connection
and verify operation. If problem exists,
reconnect your connection at the display
console to wax/lift PCB
Display reads:
DYNAMIC CURRENT TRIP Motor Controller, striding belt or
deck. When verifying striding belt tension, an error can be caused when performing a stall test.
This can result in the following message:
“Cannot Obtain Speed Error”.
Display reads:
STATIC CURRENT TRIP During power-up only, an error
occurs. Replace motor controller. See How To…Replace Motor Controller.
Display reads:
CHECKSUM ERROR XXXX Display Console Replace Display Console
Display reads:
NOTIFY MAINTENANCE
MOTOR CONTROLLER
ERROR
Motor Controller Enter diagnostics and enter Speed Errors.
See what current errors are listed that caused
the error:
“MAX TEMPERATURE TRIP”
“MAXIMUM VOLTAGE TRIP”
“FAULT LINE 1 ERROR”
If any exist, replace motor controller. See
How To… Replace Motor Controller.
Section I

12
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
TROUBLESHOOTING GUIDE
Malfunction Probable Cause Corrective Action
Display reads:
NOTIFY MAINTENANCE
INCLINE TIMEOUT ERROR
Lift Motor. Cycle motor in incline manual and verify
120VAC at P7 on Wax/Lift PCB. Replace lift
motor.
Level switch, negative switch or
wire harness is defective. In incline manual in diagnostics, verify the operation of the switches. Replace switches if
defective. See How To…Replace Switches.
Verify the wire for continuity, replace wire
harness if defective.
Display reads:
NOTIFY MAINTENANCE
HOME SWITCH ERROR
Lift switches wire harnesses
are backward. This applies only
to TR97.
Switch the wire harnesses on the negative
and level switches.
Display reads:
NOTIFY MAINTENANCE
NEGATIVE SWITCH ERROR
Lift switches wire harnesses
are backward. This applies only
to TR97.
Switch the wire harnesses on the negative
and level switches.
Display reads:
NOTIFY MAINTENANCE
FRAME TAG UNPLUGGED
Broken, damaged or unplugged
harness. Re-seat the frame tag wire harness.
Display reads:
UNABLE TO OBTAIN
TARGET SPEED
Incorrect power requirements. Refer to the Operations Manual
Striding belt/deck malfunction.
Is the deck laminate is worn
through or the underside of
striding belt is glazed over
(hard, glossy).
Replace belt and deck. See How To…
Replace Striding Belt.
Motor Controller. Replace motor controller.
See How To… Replace Motor Controller.
Display reads:
NOTIFY MAINTENANCE
SPEED SENSOR ERROR
Speed sensor or disconnected
wire harness. This error will appear after a workout, but the unit will continue to function. Enter
diagnostics, Speed Manual, and look for a
RPM reading.
If no reading exists, check continuity on the
wire harness. No continuity, replace wire
harness.
If continuity exists, replace speed sensor. See
How To …Replace Speed Sensor.

13
Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
NOTES:
Section I