831
6. Warnings and error messages
In the event of a malfunction, the control unit display will show a visual error indication
on the left-hand side and an error code on the right-hand side (code M52 in the accom-
panying example).
As in some other areas, just switching the control unit off and on again can sometimes
resolve the displayed error.
The following table lists the error codes that are generally easy to resolve. If the specified
remedy does not resolve the problem and the error code continues to be displayed, please
contact your specialist dealer.
If an error appears in the control panel display that is not included in the following table,
please also contact your specialist dealer.
9:30
28.06.14
M52
Couple both drives
Wheels uncoupled
CODE
Display Fault Remedy
B10 Energy recovery is not possible because the battery pack
has too much power
• Switch the system off and then on again.
• If possible continue driving uphill.
B11 Energy recovery too high, speed is reduced
• Continue to drive carefully and avoid driving downhill.
B12 Energy recovery high
• Reduce your speed and avoid driving downhill.
B13 Discharge current too high
• Switch the system off and then on again.
• Continue to drive carefully.
B14 Discharge current too high, speed is reduced
• Continue to drive carefully and avoid driving uphill.
B15 Discharge current high
• Reduce your speed and avoid driving uphill.
B16 to
B18
Battery pack voltage is too low • Charge the battery pack.
B19 to
B21
Voltage in the battery pack is too high during recovery
• Switch the system off and then on again.
• Continue to drive carefully.
B22 Battery temp. too low. Speed is reduced
• Continue to drive carefully and avoid driving downhill.
B23 Battery temperature low
• Reduce your speed and avoid driving downhill.
B24 Battery temp. too low
• Switch the system off and then on again.
• Continue to drive carefully.
B25 Battery temperature too low, speed is reduced
• Continue to drive carefully and avoid driving uphill or
downhill.
B26 Battery temperature low
• Reduce your speed and avoid driving uphill or downhill.
B27 Energy recovery is not possible because the battery tem-
perature is too high
• Switch the system off and then on again.
• Continue to drive carefully.
B28 Battery temp. too high. Speed is reduced.
• Continue to drive carefully and avoid driving uphill or
downhill.
B29 Battery temperature high
• Reduce your speed and avoid driving uphill or downhill.
B30 Battery temp. too high
• Switch the system off and then on again.
• Continue to drive carefully.
B31 Battery temp. too high. Speed is reduced
• Continue to drive carefully and avoid driving uphill or
downhill.
B32 Battery temperature high
• Reduce your speed and avoid driving uphill or downhill.
B33 to
B39
Check electronics, battery pack failure
• Switch the system off and then on again.
• The battery pack may be defective.
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