Malfunctions
Error code charts
Operating instructions
4.1 Error code charts
Danger!
When switching over to emergency operation, the speed can no longer be changed
using the arrow keys on the monitoring screen. The servo control, parking brake
and swing gear brake can no longer be activated.
Please also note the subheading Emergency operations in the chapter Operating the machine in this regard.
Error code Effect Cause Measure / remedy
E 004 Engine coolant level Short circuit to earth Check engine coolant level.
E 005 Short circuit + 24 V
E 006 Cable break
E 010 Hydraulic oil level not being
E 011 Short circuit + 24 V
E 012 Cable break
E 013 Hydraulic oil temperature not
E 014 Short circuit + 24 V
E 015 Cable break
E 016 Gear oil temperature Short circuit to earth Check gear oil temperature.
E 017 Short circuit + 24 V
E 018 Cable break
E 022 Diesel engine RPM Short circuit to earth
E 023 Short circuit + 24 V
E 024 Cable break
E 027 Solenoid valve for power con-
E 033 Solenoid valve for cooler fan
E 036 Solenoid valve for flow con-
E 039 Solenoid valve for flow con-
E 042 Solenoid valve - Reserve
E 045 Solenoid valve - Pressure op-
E 068 Fan RPM Fan RPM defective
E 302 Keyboard No coding plug
E 303 Keyboard No CAN bus connection to
E 305 Keyboard No CAN bus connection to
E 308 Display No connection between
monitored.
being monitored.
trol (LR)
regulation (EV5)
trol (hydraulic pump 1) EV1
trol (hydraulic pump 1) EV2
(EV3)
erate (EV6)
Short circuit to earth Check hydraulic oil level.
Short circuit to earth Check that the radiator is not dirty.
Cable break
Cable break
Cable break
Cable break
Cable break
Cable break
BST
ESP01 board
keyboard and display
4 -
2
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Operating instructions
Error code Effect Cause Measure / remedy
E 309 Display No Software compatibility
between keyboard and
display
E 319 BST No compatibility between
hardware coding and software coding
E 321 BST No reception of recog-
nised machine typ by BBT
E 322 BST Unknown Hardware cod-
ing
E 442 Joystick left Short circuit + 24 V
E 443 Short circuit to earth or
Cable break
E 445 Joystick right Short circuit + 24 V
E 446 Short circuit to earth or
Cable break
E 450 The pressure for pressure-
less boom down movement
not being monitored.
E 454 Rotation gear speed Short circuit + 24 V
E 455 Short circuit to earth or
E 456 Fuel tank sensor Short circuit + 24 V
E 458 Short circuit to earth or
Cable break
Cable break
Cable break
Malfunctions
Faults and remedies
4.2 Faults and remedies
4.2.1 Diesel engine and fuel system
Fault / error Cause Solution
Diesel engine does not start Fuel tank almost or completely emp-tyFill tank and vent fuel system
Low pressure in tank Remove fuel filler cap
Fuel filter dirty Clean or change filter and vent fuel
system, drain fuel / clean tank
Outside temperature below 0°C For operation under specific climatic
conditions, see operating instructions
Starter motor not drawing through Check line connections, overhaul
starter motor
Batteries have no power Charge / replace
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Malfunctions
Faults and remedies
Fault / error Cause Solution
Operating instructions
Engine starts but stops immediately
after or runs irregularly
Diesel engine emitting grey or black
smoke
Diesel engine continually emitting
while smoke (steam)
Diesel engine does not reach full
speed
Diesel engine becomes too hot Too little coolant Fill coolant, check for leaks
Diesel engine has insufficient oil
pressure
Note!
Switch off diesel engine immediately
Diesel engine consumes too much
oil
Oil in coolant or coolant in oil Consult customer service
Unusual noise / sounddevelopment
on exhaust side
Fuel tank empty (low pressure in
tank)
Fuel filter dirty Clean or change filter and vent fuel
Particularly in winter: too viscous
engine oil used
Dry-air filter dirty Clean or change main filter element
Air in fuel system Vent fuel system
Ventilation in fuel tank obstructed Clean
Fuel line bent Check line and repair if required
Dry-air filter dirty Clean or change filter
Water in combustion chamber Consult customer service
Speed adjustment not set to maximum value
Injection system is set incorrectly Consult customer service
Dry-air filter dirty Clean or replace filter
Bad fuel supply Clean or change fuel filter, check
Water pump defective Repair
Thermostats do not work Change thermostats
Coolant contaminated Clean coolant
Oil level too low Correct oil level
Oil pressure display faulty Change oil pressure switch
External leak on diesel engine Retighten screws, replace seals if
Exhaust system leaking Check exhaust system / repair
Fill tank and vent fuel system
system (tank)
Use engine oil suitable for the outside temperature
Set speed adjustment to maximum
value
lines, drain water from tank
required
4.2.2 Hydraulic system
Fault / error Cause Solution
Unusual noise / sounddevelopment
at hydraulic pumps
Note!
Switch off diesel engine immediately
Modes E and P showing lack of
power
4
4 -
Shutoff valve on hydraulic tank
closed
Hydraulic pumps taking in air Check oil level in hydraulic tank,
No power adjustment via proportional solenoid valve Y50
MJFCIFSS
Open stop cock
check intake lines for leaks
Unplug cable of Y50 connection, remove safety cotter pin, move lever
to emergency setting
R 984 C - Litronic / 10069859
Operating instructions
Fault / error Cause Solution
Hydraulic oil temperature too high Coolant contaminated Clean coolant
Fan or fan control defective Rectify error / consult customer
service
Hydraulic oil level too low Oil loss Repair leaks, exchange hoses, refill
oil via return-line filter
Cannot drive Push the safety lever up Push the safety lever down
No direction of travel preselected Use drive selection switch in right
joystick to determine direction of
travel
Parking brake pressure switch defective
Parking brake not released Release parking brake using switch
Parking brake will not release despite switch being operated
Service brake engaged Release service brake
Slewing gear not functioning No servo control Push the safety lever down
Slewing gear brake activated Push the safety lever down
No working movement No servo control Push the safety lever down
No servo pressure present Consult customer service
No pump high pressure present Consult customer service
Consult customer service
Servo pressure present:
Operate emergency function Y6
Servo pressure not present:
Consult customer service
Switch on servo control
Release slewing gear brake
Switch on servo control
Malfunctions
Faults and remedies
4.2.3 Transmission
Fault / error Cause Solution
Oil flowing out on track rollers, support rollers or leading wheel
Insufficient crawler tracking on leading wheel
Crawler jumps off or over Crawler tension too low / crawler
Correctly tensioned crawler losing
tension quickly during use
Track roller or support roller sticking Running gear extremely dirty Clean running gear
Seal defective Replace seal
Leading wheel tracking on track roller mounting has too much play
wheel worn
Crawler tensioning cylinder defective
Adjust the leading wheel tracking
play
Adjust crawler tension
Check crawler tensioning cylinder,
change if required or seal (only authorized specialist personnel)
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Malfunctions
Faults and remedies
4.2.4 Electrical system
Fault / error Cause Solution
Operating instructions
Battery charge telltale light does not
goes out
Batteries do not charge or charge
poorly
Telltale light or display instrument
not functioning or functioning incorrectly
Some or all functions on instrument
panel drop out
Diesel speed adjustment via operating keypad (mode and arrow keys)
not functioning
Automatic idling not functioning,
speed does not reduce
Servo control cannot be activated
using switch
Parking brake cannot be released
using switch
Slewing gear brake cannot be released using switch
Drive belt for alternator loose or torn Tension or replace drive belt
Alternator defective Replace alternator
Batteries defective Replace batteries
Battery connections dirty / oxidised Clean battery connections
Cable loose or damaged Connect or replace cable
Bulb burnt out, display instrument
defective
Plug connector separated or damaged, earth lead interrupted, short
circuit fuse defective
Automatic idling switch S20 is activated
Excavator speed adjustment electronics do not function
No signal emits from speed sensor
B12
Permanent sensor signal Consult customer service
Switch S20 is deactivated Activate switch S20
Excavator electrics faulty Switch on emergency function using
Replace defective part
Mount plug connector correctly or
change, rectify short circuit, replace
fuse or activate overload cut-outs
Touch the joystick or deactivate automatic idling switch S20.
Switch the emergency function over
from AUTO to MANU using
switch S71 in the right control panel.
Set speed using switch S72. Emergency function display appears on
monitoring screen. Consult customer service.
switch S73 in the right control panel
Caution: Servo circuit and brake circuit can only be switched off using
the safety lever. Keypad not functioning. Consult customer service.
4.2.5 Heating/air-conditioning system
Fault / error Cause Solution
Heating not giving out warm air Shutoff valves for coolant line on
diesel engine closed
Engine not at operating temperature Bring engine to operating tempera-
Heating fan does not operate No power supply Check fuse and wiring / repair
Fan motor defective Change fan motor
Only low air flow in cab Outside air filter / recirculated air fil-
ter dirty
Air vent closed Open air vent
6
4 -
MJFCIFSS
Open shutoff valve
ture
Clean air intake opening, replace
outside air filter
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Operating instructions
4.2.6 Work equipment
Fault / error Cause Solution
Cylinder stretches when loaded Piston seal in cylinder defective Overhaul cylinder
Bearing clearance too high on
equipment
Grab / bucket does not move Valve block on tilting cylinder incor-
Add-on unit cannot be turned / rotated / operated
Bearing points worn out Replace bearing parts
Switch over valve block
rectly switched
Auxiliary function has not been released
Lines are not connected Connect lines
Release auxiliary function using
switch S19
Malfunctions
Faults and remedies
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