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Star Trac recommends that you refer your questions about your STAR TRAC PRO S / PRO / PRO ELITE TREADMILL oper-
ation and suspected malfunctions to Star Trac’s Service Hotline at (800) 503-1221, or USA 1-714-669-1660. However, you may wish
to investigate error messages that appear in the Information Window. You may do so by reviewing the information in this section.
KEY DN: This error generally occurs when a key is held pressed while the ON/OFF switch is moved to ON. It may also happen
if a key becomes stuck. When you see KEY DN:
n
Set the ON/OFF switch to OFF; wait 2 seconds.
n
Set the ON/OFF switch to ON. The treadmill should be operational again. Notify Star Trac if additional assistance is needed.
NO STO: This error generally occurs when the Stop Switch is not connected tightly to the circuit board of the Display Control
Panel. It may also happen if the circuitry associated with the switch develops a fault. When you see NO STO:
n
Set the ON/OFF switch to OFF; wait 2 seconds.
n
Set the ON/OFF switch to ON. Notify Star Trac if additional assistance is needed.
NO RPM and SP CHG: These errors generally occur when the running belt speed sensor is disconnected, faulty, or misaligned
relative to the revolutions-per-minute (RPM) sensor of the motor. They may also occur if the speed sensor cable is damaged, or if
the Motor Control Board (MCB) is misadjusted or faulty. When you see NO RPM or SP CHG:
n
Set the ON/OFF switch to OFF; wait 2 seconds.
n
Set the ON/OFF switch to ON. Notify Star Trac if additional assistance is needed.
EL STL, EL RN and, ELLOST: These errors generally occur when the elevation (incline) potentiometer is faulty or out of lim-
its, or the elevation motor is disconnected or receiving low power. They may also occur if the Motor Control Board (MCB) is faulty
or the motor gears are stripped. They are usually accompanied by failure of the treadmill to rise from an elevation other than max-
imum (or descend from an elevation other than minimum), with attendant beep indication.
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