Speed Control Error - Life Fitness 9500 Series Service Manual

Life Fitness Model 9500 Series HR and Telemetry Equipped Treadmills
TROUBLESHOOTING GUIDE
Symptom: "Notify Maintenance" - "Speed Control Error"
Malfunction

Speed control error

Record Speed Error #, and
refer to maintenance mode in
operational manual.
12
Probable Cause
Insufficient power source.
Loose connections at motor
controller.
Faulty Emerson motor
controller.
Faulty CPU control board.
Loose connection at drive
motor.
Loose drive motor belt.
Broken weld on drive motor
housing.
Corrective Action
Plug Treadmill into a dedicated 120Volt,
20 Amp circuit.
Inspect cable connections.
Enter into speed automatic
DIAGNOSTICS (See Section II). If "Total
Cal" and "Cal/HR" (Watts) LED's are not
lit, inspect wire connections at control
board and motor controller. Check
connections.
If "Total Cal" LED is lit and "Cal/HR"
(Watts) LED is out, then with your feet off
the belt, press the speed increase key.
The "Total Cal" LED should go out initially
while the "Cal/HR" (Watts) LED comes
on. Once the belt reaches speed, both
LEDs should be on. If this is the case,
both the control board and the motor
controller are functioning.
Walk on unit for 5 minutes, (Note the
condition of the LED's mentioned above.
If the "Total Cal" LED flashes on and off,
the striding belt needs to be changed due
to wear on the belt or deck.
Switch the Emerson motor controller with
another Life Fitness model 9500HR
treadmill if available.
Replace motor controller.
Switch the CPU control board with
another Life Fitness model 9500HR
treadmill if available.
Replace CPU control board.
± Inspect main drive motor harness
connections.
Inspect main drive motor belt tension
(See "How To...").
± Inspect drive motor housing and
tensioning bolt condition. Replace if
necessary.
Call Life Fitness
Customer Support Services
1-847-451-0036 or 1-800-351-3737