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Troubleshooting
Fault table
Bosch Rexroth AG, M-.SED 6...XN..., RE 22049-XN-B/05.17
The valve is not sensitive to faults as long as the specified application conditions are
complied with, in particular the oil quality and the operating temperature.
Table 19: Fault table
Error
Possible cause(s)
Valve does not
Electrical connection
switch
interrupted, no current
continuity
• Cable break
• Electrical defect in valve
solenoid
• No pressure at P
• Control spool is jammed due
to contamination
External leakage
Seal defective
• Seal at the connection
surface is defective
• Other leakage
Following faults due to contamination, it is - in addition to the repair - essential
to check the oil quality and improve it, if necessary, by suitable measures such as
flushing or the additional installation of filters.
Remedy
Replace the connection cable
Remove valve and have it repaired
Check and/or reapply pressure at port P
If possible, try to release the control
spool by manually actuating the manual
override.
See chapter 9.2 "Operating the
manual override (only relevant for type
M-.SED 6...N9...)".
If this fails: Remove valve and replace it
with a new one.
Remove the valve and replace the seals
Remove valve and replace it with
a new one
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