Description
This error monitors the speed sensor
signal and verifies the the speed sensor signal is
appropriate for the requested speed.
If the speed sensor signal is incorrect or erratic an Error 26
will be displayed.
Possible
Causes
1. The treadmill utilizes an optical
(infrared) speed sensor and the line of sight between the
speed sensor and the speed sensor
target is obstructed.
2. The speed sensor position
relative to the speed sensor target is incorrect.
3. The speed sensor potentiometer
adjustment is incorrect (when equipped).
4. The speed sensor target is
damaged.
Possible
Remedies
1. Carefully, vacuum out the drive
motor compartment with a static safe vacuum cleaner. Pay
special attention to the area
between the speed sensor and speed sensor target.
2. Adjust the speed sensor position
so that the space between the speed sensor and the speed
sensor target is 3/16 inch and so
that the speed sensor photo eye is aimed at the larger
portion of the targets wedge shaped
section. On hall effect speed sensors (magnetic sensor)
the space between the end of the
speed sensor and the flywheel tooth should be 3/16 inch.
3. If the treadmill utilizes a speed
sensor potentiometer, locate the speed sensor potentiometer
on the lower PCA. Set the speed
sensor potentiometer at mid-range. Start the treadmill and
increase the speed to 6 mile per
hour. Carefully adjust the speed sensor potentiometer to the
point where the treadmill is
operating the smoothest. Increase the treadmills speed to full
speed at repeat the previous
adjustment. These two adjustments are typically small and are
usually only a matter of fine
tuning.
4. Most speed sensor targets consist
of a circular arrangement of alternate black and silver
sections. If the speed sensor target
is torn or badly scratched the speed sensor may receive
an
incorrect reading. Replace the speed sensor target.