
Possible cause Check Remedy
KMC1
N° Message Meaning
Suction return air filter 1 dirty Clean suction return air filter 1 and
replace if necessary
Perform work diagnostics
Short circuit/broken cable in the wiring
for the suction return air filter 1 sensor
CU LD12 lit Check wiring
Su
ction return air filter 1 sensor Replace suction return air filter 1 sensor
Internal error - KMC1 Replace KMC1
Power supply voltage for central
Error suction
return air filter 1
Error: Central lubrication
1510 Error: Suction return air
filter 1 filling level
Power supply voltage for central
lubrication defective
No grease present CU LD14 lit Add grease as described in the BiG M
operating instructions, chapter
Maintenance central Lubrication System.
See also Central Lubrication System in
the operating instructions
Perform work diagnostics
Jam in the system or at a connected
lubrication point
Check main distributor, subdistributor,
and lubrication points for blockages,
clean, and replace if necessary
See also Central Lubrication System in
the operating instructions
system,
malfunction
Error: Central lubrication
IMPORTANT: All
malfunction messages
from the central
lubrication system must
be confirmed and
deleted using the DK
key on the central
lubrication system. This
will simultaneously
delete any intermediate
lubrication. Before
deleting the error
message, determine the
cause of the error, and
eliminate it. See also
Central Lubrication
System in the operating
instructions.
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