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Plug Treadmill into wall outlet and press
START.
Display lights up; TREADBELT DOES NOT MOVE “L5 / LS ERROR”
Is red SERIAL lamp on the motor control
board lit?
Is the yellow RLC lamp on the motor
control board lit?
1. Unplug the treadmill from its
l
2. Walk on the belt manually. (push belt)
3. Does the yellow MOTOR lamp light while pushing?
Is yellow MOTOR lamp on the motor
control board lit?
1. Loose wire connection to motor, capacitor, or choke.
2. Loose brush holder screw on motor. (Check Both)
3. Failed drive motor. Part # 70014 (110V), 70125 (220V)
NO
YES
NO
YES
5.1
5.2
5.3
5.4
5.5
NO
1. Check wiring harness connection between
upper and lower board. Part # 70083
2. Replace display board. Part # 70076
YES
Enter Open Loop Speed mode:
WARNING: NEVER STAND ON THE TREADBELT IN THIS MODE.
1. Turn off the treadmill.
2. Press FAST and START simultaneously and release both buttons once the display lights up.
3. Hold the fast button until the display reads 99.
Short in capacitor, motor, or motor
control board.
NO
Turn treadmill off. Disconnect drive motor wires from lower control board (Mtr + and Mtr -)
terminals. Power up in OLS mode (FAST & START). Bring displayed speed up to 99.
Measure across the Mtr + and Mtr – terminals with your voltmeter (DCVolts). You should
measure at least 90 vdc on a 110V treadmill and 180 vdc on a 220V treadmill.
If you are not getting dc volts out of the lower board, replace it.
If you are measuring the proper dc voltage out, replace the drive motor.
YES
Drive motor is good.
Proceed to Ste
p
5.6.
5.6