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Elevation system failure; "PO" error.
Grade pot out of
calibration or failed.
Recalibrate pot.
Go to page 9.
P/N 71013
Does the treadmill go up when UP is pressed and
down when DOWN is pressed in this mode?
Remove the 6 pin elevation connection from the lower
control board. Is either the yellow DOWN lamp or the
yellow UP lamp on the motor contol board lit?
Replace motor control board.
P/N 70080 (110V)
P/N 70081 (220V)
Does the yellow UP lamp on the motor control board
light when UP is pressed?
Does the yellow DOWN lamp on the motor control
board light when DOWN is pressed?
Replace elevation motor.
P/N 70088 (110V) P/N 70126 (220V)
Place the treadmill in Diagnostic Mode:
1. Remove the saftey lanyard.
2. Turnoff the treadmill.
3. Hold the DISPLAY and START key simultaneously and then
release them as soon as the display lights up.
8.1
Is the red GRADE lamp on the motor control board lit?
Grade pot out of
calibration or failed.
Recalibrate pot.
P/N 71013
Replace motor control board.
P/N 70080 (110V)
P/N 70081 (220V)
Replace motor control board.
P/N 70080 (110V)
P/N 70081 (220V)
8.3
8.2
8.4
8.5
YES
NO
YES
YES
NO
NO
NO
NO
YES
YES