Falcon A1 Pro Error Code Description

Error code	Description	Processing Method
01001001	G-code words consist of a letter and a value. Letter was not found.	Gcode file error, check Gcode content
01001002	Missing the expected G-code word value or numeric value format is not valid.	Gcode file error, check Gcode content
01001004	Negative value received for an expected positive value.	Illegal command, check command content
01001005	Homing cycle failure. Homing is not configured via settings.	Homing command error, check homing command configuration or restore factory settings
01001008	'$' command cannot be used unless controller state is IDLE. Ensures smooth operation during a job.	Wait for the device to be idle before operating
01001009	G-code commands are locked out during alarm or jog state.	Wait for the device to be idle before operating
01001010	Soft limits cannot be enabled without homing also enabled.	It is recommended to restore factory settings
01001013	Safety door detected as opened and door state initiated.	Safety door triggered, please close the protective cover before operation
01001015	Jog target exceeds machine travel. Jog command has been ignored.	Check the position or travel of the Jog command
01001016	Jog command has no '=' or contains prohibited g-code.	Check if the Jog command format is correct
01001019	Non positive value	Check if the Gcode or '$' command parameters are correct
01001020	Unsupported or invalid g-code command found in block.	Check if the Gcode is correct
01001021	More than one g-code command from same modal group found in block.	Check if the Gcode is correct
01001022	Feed rate has not yet been set or is undefined.	Check if the Gcode is correct, F (feed rate) parameter is missing
01001023	G-code command in block requires an integer value.	Check if the Gcode is correct
01001024	More than one g-code command that requires axis words found in block.	Check if the Gcode is correct, possibly attempting to operate an axis other than XYZA (unsupported)
01001025	Repeated g-code word found in block.	Rarely occurs, can be ignored; if it appears, check if the Gcode is correct
01001026	No axis words found in block for g-code command or current modal state which requires them.	Check if the Gcode is correct, possibly missing movement axis command
01001027	Line number value is invalid.	Check if the Gcode is correct
01001028	G-code command is missing a required value word.	Check if the Gcode is correct
01001036	Unused value words found in block.	Rarely occurs, can be ignored; if appears, check if Gcode is correct
01001039	Value out of range.	Check if the Gcode is correct
01001045	Only homing is allowed when a limit switch is engaged.	Rarely occurs, can be ignored; if appears, check limit switch wiring
01001046	Home machine to continue.	Re-home the machine
01001051	Motor fault.	Motor driver initialization failed (usually occurs at power-on)
01001053	Setting is not available, possibly due to limited driver support.	Only occurs when $ parameters are illegally modified in LightBurn/LaserGRBL - can be ignored
01001302	Target file path does not exist or lacks read/write permissions.	Print file path is invalid or not readable/writable
01001303	Target file type is unsupported; this may be due to an incorrect file extension.	Unsupported print file format
01001304	Error parsing the target file content, e.g., the file does not conform to the expected G-code format.	File parsing error
01001305	Target file read error: unable to read data from the file or device.	File read failure
01001315	SafeDoor Open	Safety door triggered - close protective cover before operation
01001601	Hard limit has been triggered. Machine position is likely lost due to sudden halt. Re-homing is highly recommended.	Hard limit triggered - needs homing to clear hardware limit
01001602	Soft limit alarm. G-code motion target exceeds machine travel. Machine position retained. Alarm may be safely unlocked.	Soft limit triggered - recommend homing once
01001603	Reset while in motion. Machine position is likely lost due to sudden halt. Re-homing is highly recommended.	Soft reset of Grbl during movement
01001606	Homing fail. The active homing cycle was reset.	Homing failed - retry homing
01001607	Homing fail. Safety door was opened during homing cycle.	Homing failed due to open safety door - close cover and retry
01001608	Homing fail. Pull off travel failed to clear limit switch. Try increasing pull-off setting or check wiring.	Homing failed - retry homing
01001609	Homing fail. Could not find limit switch within search distances. Try increasing max travel, decreasing pull-off distance, or check wiring.	Homing failed - retry homing
01001611	Homing required. Execute homing command ($H) to continue.	Machine requires homing - manually home XYZ axes
01001612	Limit switch engaged. Clear before continuing.	The machine has triggered the limit switch, manual clearance or homing is required
01001615	Homing fail. Could not find second limit switch for auto squared axis within search distances. Try increasing max travel, decreasing pull-off distance, or check wiring.	Homing failed (rare occurrence), retry homing if this happens
01001617	Motor fault.	Motor driver abnormal - restart power supply
01001618	Homing fail. Bad configuration.	Homing failed - check configuration or restore factory settings
01002001	SafeDoor Open	Do not open cover during frame tracing, auto-focusing, operation, or pause recovery - close cover to continue
02002001	Laser Module upgrade failed	Check if Z-axis rear wiring is loose
02002002	File decompression failed	Delete USB files, re-download upgrade package, and re-upgrade
04012002	Flame detected, please ensure the fire is extinguished.	Flame alarm triggered - if machine doesn't avoid flames, manually power off and extinguish
04011003	Abnormal air pressure, please check the air pump pipe for leaks.	Check air pump tubing for leaks
04011004	Laser module overheating, please stop using until the temperature drops.	Wait until machine returns to normal temperature (5-30°C) before restarting
04011020	Laser module overheating, please stop using until the temperature drops.	Wait until machine returns to normal temperature (5-30°C) before restarting
04012006	Laser module flame sensor abnormal	UI alert: "Check laser module wiring. If error persists after confirmation, contact support"
04012008	Laser module lacks NTC sensor	UI alert: "Check laser module wiring. If error persists after confirmation, contact support"
04012009	Laser module NTC sensor short circuit	UI alert: "Check laser module wiring. If error persists after confirmation, contact support"
04012202	Laser module heartbeat timeout alarm	UI alert: "Check laser module wiring. If error persists after confirmation, contact support"
04031001	Device tilted. Processing stopped. Please place it on a level surface to restart.	Print paused - beeper cyclic alarm
04112001	Air Pump Pressure Low Alarm	UI alert: "Check if air pump is on and wiring is correct. If error persists, contact support"
04112099	Acquire Air Pump Pressure Abnormal Alarm	UI alert: "Air pressure sensor abnormal - contact support"
04132001	Low temperature alarm ≤ -10 °	Operate machine only in 5-30°C environments
04132002	High temperature alarm ≥ 50 ℃	Operate machine only in 5-30°C environments
07001001	Flame detected, please ensure the fire is extinguished.	Power off machine and clear fire situation