"2047ES / 2647ES / 3247ES" Service & Parts Manual - CE Specifications
March 2008
Page 3-13
CALIBRATION TROUBLESHOOTING; Failure messages (continued)
F19:HIGH ELEV.CLOSE
This message is given if the elevation switch (P2-10) closed during lower at a
too high height (above 25%).
Check CALIBRATIONS / HEIGHT CALS; the “ElevUp” value shows the recorded
height where the switch opened.
F20:HEIGHT<>0%
F21:HEIGHT<>0%
This message occurs if the platform height is not 0% after the platform has been
fully lowered at the end of a calibration step. The platform must return to the
same height each time it is fully lowered.
Check DIAGOSTICS / SYSTEM to check the height.
F22:HEIGHT<>100%
F23:HEIGHT<>100%
This message occurs if the platform height is not 100% after the platform has
been fully raised during a calibration step. The platform must return to the same
height each time it is fully raised. Check DIAGNOSTICS / SYSTEM to check the
height.
F24:TOO MANY
This message occurs if too many static measurements are taken during a
calibration step. In the rare event that this occurs, please call MEC for
assistance.
F25:CHECK ELEV
F26:CHECK ELEV
This message indicates a problem with the elevation switch (P2-10) during the
STATIC phases.
The switch is either staying closed to a higher height, or staying open to a lower
height, than that recorded during the DYNAMIC phase.
F27:BAD HEIGHT
This message indicates a problem with the height sensor output (P4-3) during
the STATIC calibration phases.
The height sensor output must be between 1.0V and 4.0V at all times.
Check DIAGNOSTICS / SENSORS to see the output. A reading of 0V or 5V is
probably due to a wiring problem.
F30:BAD HEIGHTS
This message indicates that the recorded heights are not increasing during
either STATIC lift, or are not decreasing during either STATIC lower.
It may be possible to cause this problem by repeatedly opening and closing the
UP or DOWN switch during the STATIC phases.
