4Troubleshooting

Warning messages and fault messages: Identifying and rectifying faults and errors: incorrect operating or maintenance of the machine.

For each fault, therefore, read the relevant chapter in the operating instructions carefully once more.

if you contact LIEBHERR customer service. Precise information makes it possible to find and rectify the cause of the fault quickly. Additionally, therefore, precise information on the type and serial number of the machine is also required.

If the cause of the fault cannot be recognised or rectified using the error codes and fault charts, please contact the LIEBHERR customer service.

Error code

4.1Error code list

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 slewing gear brake can no longer be activated.

in this regard.

These error codes will not be displayed in th can only be read off the S-Exxx menu list. See chapter 3 "Main screen".

EffectCauseMeasure / remedy

E 010Hydraulic oil level not being monitored. Short circuit to earthCheck hydraulic oil level, consult LIEBHERR customer service.

E 011Short circuit +24V

E 012Cable break

E 013Hydraulic oil temperature not being monitored. Short circuit to earthCheck that the radiator is not dirty, consult LIEBHERR customer service.

E 014Short circuit +24V

E 015Cable break

E 016Splitterbox oil temperature not being monitored. (depends on

Short circuit to earthCheck oil level, consult LIEBHERR customer service.

E 017Short circuit +24V

E 018Cable break

E 027Faulty hydraulic powerLR cable error at output stage for hydraulic power regulation

Switch to emergency control speed adjustment S_b and emergency operation work pumps Y50, consult LIEBHERR customer service.

E 030Faulty hydraulic powerEV 4 (LR2) cable error at output stage for hydraulic power regulation

E 033Maximum fan speedEV 5 cable error at output stage of electric valve for hydraulic fan control

E 036Flow reduction for hydraulic equipment not being carried out.

E 039Flow reduction for hydraulic equipment not being carried out (from R934, optional extra).

E 045Pressure reduction for hydraulic equipment not being carried out.

EV 1 cable error at the output stage for flow regulation of hydraulic pump

EV 2 cable error at the output stage for flow regulation of second hydraulic pump

EV6 cable error at the output stage for pressure regulation of the hydraulic circuit.

Consult LIEBHERR customer service.

Consult LIEBHERR customer service.

Do not operate flow reduced equipment, consult LIEBHERR customer service.

Do not operate flow reduced equipment, consult LIEBHERR customer service.

Do not operate pressure reduced equipment, consult LIEBHERR customer service.

E 150The control pressure for the stick movements is not being monitored. The stick movements may be jerkily.

Short circuit to earth or circuit break of sensor B159.

E 151Short circuit +24V for sensor B159.

Check the state of the fuse F4, the sensor B159, the connexions and the cabling.

E 153The control pressure for the boom movements is not being monitored. The boom movements may be jerkily.

Short circuit to earth or circuit break of sensor B160.

E 154Short circuit +24V for sensor B160.

Check the state of the fuse F4, the sensor B160, the connexions and the cabling.

E 156The control pressure for the left swing movements is not being monitored. The left swing movements may be jerkily.

Short circuit to earth or circuit break of sensor B167.

E 157Short circuit +24V for sensor B167.

Check the state of the fuse F4, the sensor B167, the connexions and the cabling.

Short circuit to earth or circuit break of sensor B162. Check the state of the fuse F4, the sensor B162, the connexions and the cabling.

E 160Short circuit +24V for sensor B162.

E 159The control pressure for the translation movements is not being monitored. The translation movements may be jerkily.

E 162The control pressure for the bucket movements is not being monitored. The bucket movements may be jerkily.

Short circuit to earth or circuit break of sensor B163.

E 163Short circuit +24V for sensor B163.

Check the state of the fuse F4, the sensor B163, the connexions and the cabling.

E 165The control pressure for the right swing movements is not being monitored. The right swing movements may be jerkily

Short circuit to earth or circuit break of sensor B168.

E 166Short circuit +24V for sensor B168.

Check the state of the fuse F4, the sensor B168, the connexions and the cabling.

E 168The control pressure for the AHS11 movements is not being monitored. The AHS11 movements may be jerkily

Short circuit to earth or circuit break of sensor B172.

E 169Short circuit +24V for sensor B172.

Check the state of the fuse F4, the sensor B172, the connexions and the cabling.

E 179The power regulation for the pump 1 is defective (B186)

E 180Short circuit +24V

Short circuit to earthFix or replace the connectors, repair the short circuit, change the fuse F4 or the pressure transmitter.

E 183Short circuit +24V

E 182The power regulation for the pump 2 is defective (B188)

Short circuit to earthFix or replace the connectors, repair the short circuit, change the fuse F4 or the pressure transmitter.

E 302No entry possible using keypadNo coding plugConsult LIEBHERR customer service.

E 305Malfunctions, eg. swing gear brake, servo control No CAN bus connection between keypad and ESP01 board (message also appears if ESP01 not operating).

Switch to emergency switching of servo pressure circuits S73, consult LIEBHERR customer service.

E 308No display or incorrect display on screen No connection keypad / screen or keypad not operating Consult LIEBHERR customer service.

E 309No Software compatibility between screen and keypad

E 310For boring excavators, Hardware coding and software coding are not in concordance.

E 447No more monitoring of the translation motor regulation pressure.

B144 pressostat wiring default. Courant < 3mA ou > 21 mA

Consult LIEBHERR customer service.

Consult LIEBHERR customer service.

Troubleshooting

E 450The pressure for pressureless boom down movement not being monitored.

B154 pressostat wiring default. Current < 3mA or > 21 mA

Consult LIEBHERR customer service.

Short circuit +24VConsult LIEBHERR customer service.

E 455Short circuit to earth or cable break

E 454The hydraulic power of the swing is no more controlled. Possible slappings in the valves

E 460The motor and the control circuit are switched off. The control circuit is automatically switched on.

The motor may be switched on.

Client power supply: overvoltage / undervoltage / phase rotation order and asymmetry

Press the button RESERT (left console). The error code disappears.

If the problem persists, check the client power supply.

E 504Low hydraulic oil levelSee chapter 3 "Warning symbols in the SY field"

E 505Hydraulic oil overheat

E 506Splitterbox oil overheat

E 511High voltage of batteries

E 549Overheating of the stator windings of the electric motor

E 550Overheating of the bearings of the electric motor

E 601Connection default for plate ESP01 Consult LIEBHERR customer service.

4.2Troubleshooting

4.2.1Hydraulic system

Unusual noises / noise from hydraulic pumps

Note!

Immediately shut down motor.

Stop valve on hydraulic tank closedOpen stop valve

Hydraulic pumps take in airCheck oil level in hydraulic tank, check suction lines for leakage

Hydraulic oil temperature too highRadiator dirtyClean radiator

Fan or fan control defectiveEliminate fault / consult customer service department

Hydraulic oil level too lowOil lossRepair leak, replace hoses, add oil through the return filter copyright by

Error / faultCauseRemedy

Travel function not availableMove the safety lever upMove safety lever down No direction of travel selectedSelect direction of travel using the travel selection switch in the right joystick

Pressure switch of parking brake defective Consult LIEBHERR customer service

Parking brake not releasedRelease parking brake using the switch

Parking brake cannot be released with the switch

Servo pressure OK: actuate emergency function Y6 No servo pressure: consult LIEBHERR customer service

Operating brake appliedRelease operating brake

Slewing gear failureServo control not workingMove safety lever down Switch on servo control

Slewing gear brake activatedMove safety lever down Release slewing gear brake

No working movementServo control not workingMove safety lever down Switch on servo control

No servo pressureConsult LIEBHERR customer service

No pump high pressureConsult LIEBHERR customer service

4.2.2Travel gearbox

Error / faultCauseRemedy

Oil escaping at running rollers, support rollers or idler

Seal defectiveReplace seal

Chain guide at idler defectiveExcessive play of idler guide system at the running roller frame

Chain jumps from guidesInsufficient chain tension / chain wheel worn

Adjust play of idler guide system

Adjust chain tension

Correctly tightened chain becomes loose after short operation Chain tensioning cylinder defectiveCheck chain tensioning cylinder; replace or reseal, if necessary (to be done by authorised specialist technician)

Running or support roller stiffDrive extremely dirtyClean drive copyright by

Troubleshooting

4.2.3Electrical system

Error / faultCauseRemedy

Batteries not sufficiently chargedBatteries defectiveReplace batteries

Battery connections dirty / oxidisedClean battery connections

Cable loose or defectiveReconnect or replace cable

Failure of indicator light or indicating instrument

Failure of one or more instrument panel functions

Servo control cannot be activated with switch

Parking brake cannot be released with switch

Slewing gear brake cannot be released with switch

Incandescent lamp burnt out; indicating instrument defective

Adapters disconnected or defective; earth connector disconnected; short circuit - fuse blown

Fault in electrical system of excavator

4.2.4Working attachment

Replace defective part

Plug in or change adapter; eliminate cause of short circuit; replace fuse or reset automatic cut-out

Switching of emergency function with switch S73 in right control console

Caution: the servo and brake circuit can now only be switched off with the safety lever; keyboard is disabled Consult LIEBHERR customer service

Error / faultCauseRemedy

Cylinder responds to loadPiston seal in cylinder defectiveService cylinder

Excessive bearing play in attachment Bearings wornReplace bearing components

Grapple / bucket cannot be movedValve block at tilt cylinder connected incorrectly

Attachment cannot be rotated / swivelled / operated

Change connections to valve block

Auxiliary function not activatedRelease auxiliary function with switch S19

Lines not connectedConnect lines

4.2.5Heating and air-conditioning system

Error / faultCauseRemedy

No warm air from heating systemSet switch S206a to position 0 (off) or switch S206b to position 0 (0 kW)

Set switch to correct position

Heater fluid is missingFill the expantion tank (see § "Heater and air conditioner")

Heating blower not workingNo powerCheck fuse and cable; replace if required

Blower motor defectiveReplace blower motor copyright by

Low

The error codes shown on the display of the control panel facilitate troubleshooting of the heating and air-conditioning system. The error codes listed below indicate faults or errors at specific components in the control and operating circuit of the heating and air-conditioning system.

Error code "F0": fault at room temperature sensor:

The control system has detected a fault at the room temperature sensor, and regulation is disabled.

Cause of fault: Short circuit, sensor cable break, loose connection at sensor or control unit, temperature sensor defective.

Eliminate the fault. The sensor is again ready for operation, and the error code disappears.

After a fault, the regulator is operated with the settings as entered before the fault.

Error code "F1": fault at blow-out temperature sensor:

The control system has detected a fault at the blow-out temperature sensor, and regulation is disabled.

Cause of sensor fault: Short circuit, sensor cable break, loose connection at sensor or control unit, temperature sensor defective.

Eliminate the fault. The sensor is again ready for operation, and the error code disappears.

After a sensor fault, the regulator is operated with the settings as entered before the fault.

Error code "F2": fault at reserve temperature sensor:

The control system has detected a fault at the reserve temperature sensor, and regulation is disabled.

Cause of fault: Short circuit, sensor cable break, loose connection at sensor or control unit, temperature sensor defective.

Eliminate the fault. The sensor is again ready for operation, and the error code disappears.

After a sensor fault, the regulator is operated with the settings as entered before the fault.

Error code "F3": fault at legroom/windscreen ventilation flap:

The control system has detected a fault at the legroom/windscreen ventilation flap. Regulation remains operational.

Cause of fault: Short circuit, cable break, loose connection at the ventilation flap motor or control unit, flap motor defective.

Eliminate the fault. The error code disappears.

In the event of a flap fault, the regulator continues working as normal, although the centre position of the air flap cannot be used.

Error code "F4": pressure fault / fault at magnetic clutch:

The control unit has detected a fault at the pressure switch or the magnetic clutch.

Cause of fault: Short circuit, cable break to magnetic clutch, loose connection at the clutch or control unit, overpressure or underpressure (insufficient refrigerant) in cooling circuit of the a/c system.

Eliminate the fault. The error code disappears.

The regulator is not affected by a pressure fault / magnetic clutch fault, and only the magnetic clutch output is interrupted.

Error code "F5": data transmission fault between control panel and control unit:

The data transfer from the control panel to the control unit interrupted.

Cause of fault: Short circuit or cable break in the data line to the control unit, loose connection at the control panel or control unit.

The control panel repeatedly attempts to establish a data connection to the control unit. Eliminate the error. The error code "F5" disappears. If data communication cannot be re-established, switch off the ignition and switch it on again to reset the system.

4.2.6Power cable

The power cable can be damaged:

Danger!

Powered machine parts and power cable! Electrocution, death.

Stay in the cab as long as the power supply station is switched on.

If the power cable is damaged: Do not move the machine or the working attachment. Stay in the cab.

Warn people on the operation site: copyright by

Ask qualified and authorized personnel to switch off the power at the power supply station. Leave the machine.

Have the power cable repaired by qualified and authorized personnel.

4.3Fuses and relays

4.3.1Power

Fuses in electric cabinet E50

F19 100 ATerminal 30Automatic cut-out / Centrifugal pump (power circuit of heating system - booster pump).

F2050 ATerminal 30Automatic cut-out / Circuit terminals 30 + 15.

F22* 15 ATerminal 30Fuse / Reserve.

F31*7.5 ATerminal 15Fuse / Control unit air-conditioning system.

F33*7.5 ATerminal 15Fuse / Reserve.

F3415 ATerminal 30Fuse / Reserve..

Troubleshooting

Fuses and relays

Operating manual

F3515 ATerminal 30Fuse / Headlight (E12) on counter weight (power circuit).

F36*20 ATerminal 30Fuse / Reserve.

F36-2*15 ATerminal 15Fuse / Stick cylinder shut-down*.

F3720 ATerminal 30Fuse / Conrol unit air-conditioning system and ventiation.

F10950 ATerminal 30Automatic cut-out / Circuit terminal 30)

F11050 ATerminal 30Automatic cut-out / Reserve.

F115 7.5 ATerminal 15Fuse / (terminals 127 + 128).

F116 7.5 ATerminal 30Fuse / Centrifugal pump (power circuit of heating system - booster pump).

F117 7.5 ATerminal 15Fuse / Reserve.

F122 7.5 ATerminal 30Fuse / Centrifugal pump (power circuit of heating system - booster pump).

F133* 7.5 ATerminal 30Fuse / Reserve.

F25315 ATerminal 30Fuse / Work headlight on attachment (E1) (power circuit).

Relays in electric cabinet E50

K10-120 ARelay / Auxiliary headlight on counter weight. (E12)

K5620 ARelay / Reserve.

K66-1*5/10 ARelay / Installation kit shut-down of attachment movement.

K66-2*5/10 ARelay / Installation kit shut-down of attachment movement.

K127 5/10 ARelay / Reserve.

K1285/10 ARelay / Reserve.

K28875 AMain relay / Terminal 15.

K30275 ARelay / Heating system - booster pump.

K3592x10 ARelay / Reserve.

K41520 ARelay / work headlight on attachment (E1).

* Special equipment

Terminal 15: +24V contact.

Terminal 30: +24V permanent.

4.3.2A1010 printed circuit board

All other fuses are located in the left control console of the operator's cab.

Danger copyright by

Incorrect or bridged fuses do not provide the protection required for the safety of the machine operator and the electrical equipment. Use only original fuses.

Never bridge fuses.

If necessary, order replacement fuses from LIEBHERR.

Fuses on terminal 15

F1 15 ACentral lubrication system, screen wiper on cab roof*.

F2 15 AAutoradio (transformer 12V).

F3 15 AReserve.

F4 15 AWindscreen washer system (M3), windscreen wiper control circuit (M4), 24 V stabiliser for sensors and transducers (B19R, B19L, B21, B33-2, B40, B41, B53, B143, B145, B177, B178, B179 and B188), Qmin circuit (Y78), pressure-free lowering (Y139), beacon* (E9), rotating grapple* (Y22 and Y23).

F5 7.5 AWindscreen wiper motor (power circuit).

F6 7.5 AReserve.

F7 7.5 AKeyboard and display.

F8 15 ASafety lever, solenoid valve for pilot control pressure (Y7), slewing gear brake (Y3), fast travel (Y24), additional pressure level (Y160).

F9 15 APower supply of BST.

Fuses on terminal 30

F10 25 AWork headlight on attachment* (E1), revolving deck (E2) and cab (E5), travel light (E3 and E4).

F11 15 AReserve.