Mec Speed Level Series Service & Parts Manual page 75

Secton 6 - Electrcal System
F46:CHECK ELEV
• This message indicates that the elevation switch opened more than once during the DYNAMIC
lift.
F47:CHECK ELEV
• This message indicates that the elevation switch closed more than once during the DYNAMIC
lower.
F48:BAD PRESSURE
• This message is given if the pressure sensor output (P8-2 and P8-6) is out of range at the start
of calibration.
• The height sensor output must be between 0.5V and 4.5V.
• Check DIAGNOSTICS / SENSORS to see the output. A reading of 0V or 5V is probably due to a
wiring problem.
F52:NOT CALIBRATED
• This message is a catch-all code which indicates an improper calibration sequence or that one
of the phases of calibration was not completed. The skipped phase must be completed or the
calibration sequence must be passed through in proper sequence before this message will clear.
Re-start the calibration sequence and proceed through each sequence in the specified order.
• A "Redo" prompt will appear before each sequence. Answer "NO" if there is no reason to repeat
or "YES" if the phase must be completed.
Page 68 Speed Level Seres - Servce & Parts Manual
January 2019