98 Liebherr diagnostic codes on file — with the full diagnosis, repair steps, and field insights open to read free, no signup required.
Disclaimer: General reference information for trained, qualified technicians only. Codes and procedures vary by model, serial number and software version. Always follow the manufacturer's service manual and your site's safety procedures. Use at your own risk. Not affiliated with or endorsed by any manufacturer.
| Code | System | Symptom | Full fix |
|---|---|---|---|
| E 311 | Controls / Litronic | Process Data Recording (PDE) Freeze | View fix |
| E 314 | Communication | Engine / Mast Controller Communication Loss | View fix |
| E 315 | Communication | Dash Displays Freeze / CAN Alarm | View fix |
| E 318 | Safety / Interlock | All Working Hydraulics Disabled | View fix |
| E 319 | Safety / Interlock | All Working Hydraulics Disabled | View fix |
| E 322 | Controls / PDE | Concrete Pump / CFA Telemetry Fault | View fix |
| E 324 | Trenching / Hydraulics | Slurry Wall Cutter Grab Won't Close | View fix |
| E 502 | — | Hydraulic speed slows down; cooling fan runs at max RPM. | View fix |
| E0 | Diagnostic | — | View fix |
| E0045 | Safety / Interlock | Main Winch lockout near bottom. | View fix |
| E0445 | Process Data (PDE) | Kelly visualization failing / No foot detection. | View fix |
| E1 | Diagnostic | — | View fix |
| E2 | Diagnostic | — | View fix |
| E437 | Control (Litronic) | Drilling Assistant Interruption. | View fix |
| E5 | Diagnostic | — | View fix |
| N/A (Limit) | Pile Driving | Auger won't lower. | View fix |
| P1122-00 | Aftertreatment (SCR) | Dosing Failure. AdBlue/DEF is not being sprayed into the exhaust. | View fix |
| P1187 | Emissions / SCR | DeNOx Warning / Slight Power Reduction | View fix |
| P1187-00 | Inducement | Warning Level 1. Yellow alert on dash; no power loss yet, but a timer has started. | View fix |
| P1188 | Emissions / SCR | Active Torque Derate (Max 75% Torque Cap) | View fix |
| P1189 | Emissions / SCR | Active Torque Derate / AdBlue Lamp | View fix |
| P1192 | Emissions / DEF | DEF Light Flashing / Power Derate | View fix |
| P1195 | Emissions / DPF | DPF Warning Light / High Idle | View fix |
| P1198 | Emissions / DEF | AdBlue Warning Light / Derate Active | View fix |
| P1223 | System Comm | PDE Data Not Recording. | View fix |
| P2047-00 | SCR Dosing | No Dosing. The system stops injecting DEF; "Service Required" on Litronic display. | View fix |
| P2047-00 | Aftertreatment (SCR) | Limp Mode. DEF dosing stops immediately. | View fix |
| P204C-00 | Aftertreatment (SCR) | DEF Derate. Check Engine light on; AdBlue/DEF pressure fails to build; machine may limit RPM/torque. | View fix |
| P205C-00 | Aftertreatment (SCR) | Wait-to-Start. The machine may delay full power in cold weather. | View fix |
| P208E-00 | Aftertreatment (SCR) | Pump Failure. System won't prime. | View fix |
| P20B9-00 | DEF Heating | Cold Weather Failure. Only triggers when ambient temp drops below 0°C. | View fix |
| P20BD-00 | Aftertreatment (SCR) | Winter Failure. DEF freezes in lines; machine won't dose. | View fix |
| P20E8-00 | Aftertreatment (SCR) | Severe Power Loss. Engine derates quickly; AdBlue pump not audible. | View fix |
| P20EE-00 | Aftertreatment (SCR) | Efficiency Alert. "SCR Catalyst Efficiency Below Threshold." | View fix |
| P20EE-00 | SCR Catalyst | Derate Looming. The machine "sees" the exhaust is still dirty after the catalyst. | View fix |
| P2BA9-00 | Inducement | Limp Mode (Low Power). The machine has detected "Incorrect Reductant." | View fix |
| SPN 520265 FMI 14 | Hydraulics | Dump Body Hoist Up Inoperative | View fix |
| SPN 520280 FMI 14 | Hydraulics | Rotary Head Speed Limit / Torque Drop | View fix |
| SPN 520281 FMI 3 | Hydraulics | Rotary Torque Pinned / High Pressure | View fix |
| SPN 520290 FMI 14 | Hydraulics / Winch | Free-Fall Winch Interlock Active | View fix |
| SPN 520840 FMI 00 | Inverter / Thermal | Hydraulics Derated / Inverter Thermal Alarm | View fix |
| SPN 520890 FMI 07 | Safety / Contactors | High Voltage Off / Red Lockout Siren | View fix |
| SPN 520930 FMI 05 | Hydraulics / E-Pump | Zero Hydraulic Power / Electric Motor Silent | View fix |
| SPN 520980 FMI 09 | Communication | All Electric Drives Locked / Cluster Red | View fix |
| SPN 522104 FMI 5 | Hydraulics / Winch | Winch Lowers Slowly / Warning Active | View fix |
| SPN 630 FMI 2 | Control Module | Parameter Memory Error | View fix |
| SPN 701 FMI 5 | Electrical | Hydraulic Function Interrupted | View fix |
| Service Code 22 | LICCON 1/2 | — | View fix |
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