Error code list is the quick checklist for you to locate the possible issue on your Flashforge 3D printer. Please search for error code number or failure mode of the printer to locate causes and suggested actions.
| ErrorCode | Error Code Description | RootCause | Solutions | Maintenance Video |
| E0002 | MCU communication lost | The issue occurring upon startup indicates a mainboard failure. | Re-flash the firmware via USB flash drive or replace the mainboard |
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| E0005 | Printer is not ready. Please check if the wiring is correct | Extruder mount wiring harness is not properly connected | Reconnect the wiring harness | |
| The extruder dock is not properly installed or the screws are not tightened | Reinstall extruder dock and tighten the screws securely | |||
| Extruder mount PCBA damaged | Replace the Extruder mount PCBA | |||
| Extruder dock PCBA damaged | Replace the Extruder dock PCBA | |||
| Mainboard damaged | Replace damaged | |||
| Leverboard damaged | Replace Leverboard | |||
| E0012 | X-axis signal not triggered | The linear speed sags, or other objects block the homing path of the X-axis | Remove foreign objects or organize the wiring harness | |
| The wiring harness of the homing sensor is loose, disconnected or damaged (this phenomenon occurs when the print head normally moves towards the zero point but fails to trigger the relevant component, resulting in clicking noises) |
Reconnect the wiring harness Replace sensor |
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| E0013 | Y-axis signal not triggered | The linear speed sags, or other objects block the homing path of the Y-axis | Remove foreign objects or organize the wiring harness | |
| The wiring harness of the homing sensor is loose, disconnected or damaged (this phenomenon occurs when the print head normally moves towards the zero point but fails to trigger the relevant component, resulting in clicking noises) |
Reconnect the wiring harness Replace sensor |
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| E0014 | Z-axis signal not triggered | Other object is blocking the Z-axis homing path | Remove foreign objects or organize the wiring harnes | |
| The wiring harness of the leveling sensor on the spray head seat is loose, disconnected or damaged |
Check whether the wiring harness of the leveling sensor is loose; re-tighten the wiring harness； Replace leveling sensor |
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| E0021 | Cannot open camera/Camera not recognized | Camera damaged | Replace Camera | |
| Camera interface damaged | Replace Camera | |||
| The camera harness connector is loose or the harness is damaged | Reconnect the camera or replace the wiring harness | |||
| Mainboard damaged | Replace Mainboard | |||
| E0051 | T1 pickup failed | Foreign matter is present between the extruder mount and the extruder | Clean up | |
| Extruder mount PCBA damaged | Replace extruder mount PCBA | |||
| Geared motor or wiring harness is damaged | Replace geared motor | |||
| E0052 | T2 pickup failed | Foreign matter is present between the extruder mount and the extruder | Clean up | |
| Extruder mount PCBA damaged | Replace extruder mount PCBA | |||
| Geared motor or wiring harness is damaged | Replace geared motor | |||
| E0053 | T3 pickup failed | Foreign matter is present between the extruder mount and the extruder | Clean up | |
| Extruder mount PCBA damaged | Replace extruder mount PCBA | |||
| Geared motor or wiring harness is damaged | Replace geared motor | |||
| E0054 | T4 pickup failed | Foreign matter is present between the extruder mount and the extruder | Clean up | |
| Extruder mount PCBA damaged | Replace extruder mount PCBA | |||
| Geared motor or wiring harness is damaged | Replace geared motor | |||
| E0063 | Extruder 1 heating error | Temperature sensor is damaged | Replace nozzle | |
| Temperature sensor has fallen off | Replace nozzle | |||
| Nozzle PCBA damaged | Replace nozzle PCBA | |||
| Nozzle wiring harness damaged | Replace nozzle wiring harness | |||
| Extruder dock PCBA damaged | Replace extruder dock PCBA | |||
| The wiring harness connect nozzle dock and mainboard damaged | Replace the wiring harness | |||
| Mainboard damaged | Replace mainboard | |||
| Parts annotation limit exceeded (error occurs when starting print） | Combined slicing of multiple parts | |||
| E0064 | Extruder 2 heating error | Temperature sensor is damaged | Replace nozzle | |
| Temperature sensor has fallen off | Replace nozzle | |||
| Nozzle PCBA damaged | Replace nozzle PCBA | |||
| Nozzle wiring harness damaged | Replace nozzle wiring harness | |||
| Extruder dock PCBA damaged | Replace extruder dock PCBA | |||
| The wiring harness connect nozzle dock and mainboard damaged | Replace the wiring harness | |||
| Mainboard damaged | Replace mainboard | |||
| Parts annotation limit exceeded (error occurs when starting print） | Combined slicing of multiple parts | |||
| E0065 | Extruder 3 heating error | Temperature sensor is damaged | Replace nozzle | |
| Temperature sensor has fallen off | Replace nozzle | |||
| Nozzle PCBA damaged | Replace nozzle PCBA | |||
| Nozzle wiring harness damaged | Replace nozzle wiring harness | |||
| Extruder dock PCBA damaged | Replace extruder dock PCBA | |||
| The wiring harness connect nozzle dock and mainboard damaged | Replace the wiring harness | |||
| Mainboard damaged | Replace mainboard | |||
| Parts annotation limit exceeded (error occurs when starting print） | Combined slicing of multiple parts | |||
| E0066 | Extruder 4 heating error | Temperature sensor is damaged | Replace nozzle | |
| Temperature sensor has fallen off | Replace nozzle | |||
| Nozzle PCBA damaged | Replace nozzle PCBA | |||
| Nozzle wiring harness damaged | Replace nozzle wiring harness | |||
| Extruder dock PCBA damaged | Replace extruder dock PCBA | |||
| The wiring harness connect nozzle dock and mainboard damaged | Replace the wiring harness | |||
| Mainboard damaged | Replace mainboard | |||
| Parts annotation limit exceeded (error occurs when starting print） | Combined slicing of multiple parts | |||
| E0077 | Chamber heating error | The air outlet is blocked | Clean the air outlet | |
| The external ambient temperature is too low | Turn on the air conditioner or take heat preservation measures | |||
| PTC damaged | Replace PTC | |||
| Mainboard damaged | Replace mainboard | |||
| E0123 | Bed heating error | print bed damage | Replace print bed | |
| Damaged wiring harness between the print bed and the mainboard | Replace wiring harness | |||
| AC board or mainboard damaged | Replace AC board or mainboard | |||
| E0125 | Heater board MCU communication lost | Extruder dock adapter wiring harness damaged | Replace | |
| Extruder dock adapter PCBA damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| nozzle PCBA damaged | Replace | |||
| E0127 | T1 not in dock. Cannot pick up extruder. | T1 not installed | Install T1 | |
| T1 PCBA damaged | Replace | |||
| T1 wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0128 | T2 not in dock. Cannot pick up extruder | T2 not installed | Install T2 | |
| T2 PCBA damaged | Replace | |||
| T2 wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0129 | T3 not in dock. Cannot pick up extruder | T3 not installed | Install T3 | |
| T3 PCBA damaged | Replace | |||
| T3 wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0130 | T4 not in dock. Cannot pick up extruder | T4 not installed | Install T4 | |
| T4 PCBA damaged | Replace | |||
| T4 wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0131 | T1 already in dock. Cannot release extruder | T1 nozzle PCBA damaged | Replace | |
| T1 wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0132 | T2 already in dock. Cannot release extruder | T2 nozzle PCBA damaged | Replace | |
| T2 wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0133 | T3 already in dock. Cannot release extruder | T3 nozzle PCBA damaged | Replace | |
| T3 wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0134 | T4 already in dock. Cannot release extruder | T4 nozzle PCBA damaged | Replace | |
| T4 wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0135 | T1 release failed | T1 nozzle PCBA damaged | Replace | |
| T1 wiring harness damaged | Replace | |||
| The photoelectric sensor of the extruder mount or its wiring harness is damaged | Replace | |||
| The deceleration stepping motor in the extruder mount is damaged | Replace | |||
| Extruder mount PCBA damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0136 | T2 release failed | T2 nozzle PCBA damaged | Replace | |
| T2 wiring harness damaged | Replace | |||
| The photoelectric sensor of the extruder mount or its wiring harness is damaged | Replace | |||
| The deceleration stepping motor in the extruder mount is damaged | Replace | |||
| Extruder mount PCBA damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0137 | T3 release failed | T3 nozzle PCBA damaged | Replace | |
| T3 wiring harness damaged | Replace | |||
| The photoelectric sensor of the extruder mount or its wiring harness is damaged | Replace | |||
| The deceleration stepping motor in the extruder mount is damaged | Replace | |||
| Extruder mount PCBA damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0138 | T4 release failed | T4 nozzle PCBA damaged | Replace | |
| T4 wiring harness damaged | Replace | |||
| The photoelectric sensor of the extruder mount or its wiring harness is damaged | Replace | |||
| The deceleration stepping motor in the extruder mount is damaged | Replace | |||
| Extruder mount PCBA damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0139 | Extruder mount sensor not triggered | T1/2/3/4 nozzle PCBA damaged | Replace | |
| T1/2/3/4 nozzle wiring harness is damaged | Replace | |||
| The extruder mount magnet is not installed | Replace the positioning iron plate of the extruder mount | |||
| E0140 | Extruder dock sensor not triggered | T1/2/3/4 nozzle PCBA damaged | Replace | |
| T1/2/3/4 nozzle wiring harness is damaged | Replace | |||
| The extruder dock magnet is not installed | Install the magnet | |||
| E0141 | Extruder mount sensor still triggered | T1/2/3/4 nozzle PCBA damaged | Replace | |
| T1/2/3/4 nozzle wiring harness is damaged | Replace | |||
| The extruder dock PCBA damaged | Replace | |||
| E0142 | Extruder dock sensor still triggered | T1/2/3/4 nozzle PCBA damaged | Replace | |
| T1/2/3/4 nozzle wiring harness is damaged | Replace | |||
| The extruder dock PCBA damaged | Replace | |||
| E0143 | State error after extruder pickup | Foreign objects are present between the extruder mount and the nozzle | Clean | |
| The PCBA in the nextruder mount damaged | Replace | |||
| Damaged gear motor or wiring harness | Replace | |||
| T1/2/3/4 nozzle PCBA damaged | Replace | |||
| T1/2/3/4 nozzle wiring harness is damaged | Replace | |||
| E0144 | State error after extruder release | The PCBA in the extruder mount damaged | Replace | |
| Damaged gear motor or wiring harness | Replace | |||
| The extruder mount photoelectric sensor or its wiring harness is damaged | Replace | |||
| T1/2/3/4 nozzle PCBA damaged | Replace | |||
| T1/2/3/4 nozzle wiring harness is damaged | Replace | |||
| E0145 | Lock motor current abnormal | The PCBA in the extruder mount damaged | Replace | |
| Damaged gear motor or wiring harness | Replace | |||
| E0146 | Unlock sensor not triggered | The PCBA in the extruder mount damaged | Replace | |
| Damaged gear motor or wiring harness | Replace | |||
| The extruder mount photoelectric sensor or its wiring harness is damaged | Replace | |||
| T1/2/3/4 nozzle PCBA damaged | Replace | |||
| T1/2/3/4 nozzle wiring harness is damaged | Replace | |||
| E0147 | Build plate not removed. Please check | The PEI plate was not removed during calibration | Remove | |
| Firmware versions prior to 1.9.7 + new-style magnetic tile (cross-shaped drainage slots added at the eddy current bowl position) | Upgrade to firmware version 1.9.7 and later releases | |||
| E0148 | The leveling extreme values are out of range. Please clean the platform or adjust its flatness, then try again. | The bed is installed at far too steep an angle | Manually adjust the bed level | |
| Bed leveling sensor damaged | Replace | |||
| E0149 | Sensor not triggered at max travel | Bed leveling sensor damaged during level adjustment | Replace | |
| extruder mount PCBA damaged during level adjustment | Replace | |||
| Bed leveling sensor damaged when calibrating nozzle offset | Replace | |||
| E0150 | Homing timeout | Abnormal Z-axis homing sequence | Re-home | |
| E0151 | Eddy current probe triggered before move | Bed leveling sensor damaged | Replace | |
| Calibration nozzle offset sensor damaged | Replace | |||
| E0152 | During leveling, the values measured multiple times are out of range. Please clean the platform and nozzle, then try again | There is vibration interference around during leveling. | Re-level | |
| Bed leveling sensor damaged | Replace | |||
| E0153 | During nozzle offset calibration, the values measured multiple times are out of range. Please clean the eddy-current sensor and nozzle, then try again | There is vibration interference around during leveling. | Re-level | |
| Calibration nozzle offset sensor damaged | Replace | |||
| E0155 | X-axis limit still triggered after retract | X limit switch damaged | Replace | |
| E0156 | Y-axis limit still triggered after retract | Y limit switch damaged | Replace | |
| E0157 | Z-axis limit still triggered after retract | Bed leveling sensor damaged | Replace | |
| E0159 | Homing error | X/Y/Z motor damaged | Replace | |
| E0160 | Cannot release extruder. Homing failed | The recorded number of nozzle that need to be activated does not match the actual number. | Check whether the grabbing nozzle matches the actual nozzle | |
| E0161 | Bed eddy current position abnormal. Please check | The saved eddy current position does not match the actual position | Re-home | |
| E0162 | Paused. Filament runout | Filament runs out during printing | Reinstall the filament and resume printing | |
| Filament detection module damaged | Replace | |||
| E0163 | Paused. Clog detected | Nozzle clogged during printing | Clean the nozzle with a needle or cold pull | |
| Clogging wire module damaged | Replace | |||
| Filamnet wrapping | straighten out filament | |||
| E0165 | Extruder not installed, can not print | The nozzle currently in use is not installed | Reinstall | |
| Nozzle PCBA damaged | Replace | |||
| Nozzle wiring harness damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| Extruder dock magnet not installed | Reinstall | |||
| E0166 | Print file error. Please check | The 3MF file is not sliced or contains garbled characters. | Reslice | |
| E0167 | The platform is not installed. Please install it and try again | No PEI is detected before printing | Install | |
| E0168 | Platform not installed. Please install and try again | No PEI is detected during leveling. | Install | |
| E0169 | Printer model mismatch. Please re-slice | The model selected during slicing is different from the machine's model. | Select and print slices for compatible device models | |
| E0170 | Lost communication with main mcu | mainboard damaged | Replace | |
| E0171 | Lost communication with extruder mcu | Extruder mount wire harness damaged | Replace | |
| Extruder mount PCBA damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0172 | Lost communication heater mcu | Extruder dock adapter harness damaged | Replace | |
| Extruder dock adapter PCBA damaged | Replace | |||
| Extruder dock PCBA damaged | Replace | |||
| E0173 | Lost communication with level mcu | Bed bus is damaged | Replace | |
| Bed PCBA damaged | Replace | |||
| E0174 | Copy log error, please try again | Unplugging the USB flash drive during the copying logs, or insufficient storage space on the USB flash drive | Clean up the storage space of the USB flash drive | |
| E0175 | Internal error on command | The slice has more than 4 colors | Change the slices to use no more than four colors | |
| Internal Error | Copy the log query issue | |||
| E0176 | The gcode move out of range | The gcode move out of range | Reslice | |
| MCU Overload | Reduce the speed by 50% or change the slice resolution | |||
| E0999 | Unknown error | Other errors that have not been collected | Copy Log Query Issue |