HMS 0300-2600-0001-0001: low signal on the left extruder eddy sensor
HMS 0300-2600-0001-0001 means the left extruder eddy current sensor signal is low. How to tell a badly seated nozzle from a sensor that has actually failed.
Category: Error codes
Machine error codes explained: Bambu HMS codes, MINTEMP and MAXTEMP, thermal runaway, homing and probe failures. What the code means, and what to check first.
HMS 0300-2500-0001-0001: right extruder eddy sensor frequency too low
HMS 0300-2500-0001-0001 means the right extruder eddy sensor frequency is too low. That points at the nozzle seating rather than at the sensor itself.
HMS 0300-1E00-0001-0009: left nozzle control fault, or no hotend fitted
HMS 0300-1E00-0001-0009 usually means the left hotend is not installed or not seated. What maintenance mode is for, and when it is a real control fault.
HMS 0300-1500-0001-0001: Motor-Z current sensor abnormal
HMS 0300-1500-0001-0001 is a current sensor fault on the Z motor circuit. Why a new motor will not fix it, and the one test that tells you what failed.
HMS 0300-1400-0001-0001: Motor-B current sensor abnormal
HMS 0300-1400-0001-0001 is a current sensor fault on Motor-B, which sits on the board rather than in the motor. How to prove it before replacing anything.
HMS 0300-0100-0001-000E: supply voltage does not match, heatbed disabled
HMS 0300-0100-0001-000E means the supply voltage does not match the machine, so the bed is disabled. Check the mains setting before you touch anything else.
HMS 0300-1100-0002-0002: Y axis resonance differs from last calibration
HMS 0300-1100-0002-0002 means Y axis resonance has shifted since the last calibration. That is a mechanical change report, not a fault. What moved, and why.
HMS 0300-9400-0002-0003: chamber failed to reach the desired temperature
HMS 0300-9400-0002-0003 means the chamber never reached its target so the printer stopped waiting. Why a cold room is usually the cause, and what to change.
HMS 0300-9000-0001-0002: chamber heating failed, not enclosed or too cold
HMS 0300-9000-0001-0002 means chamber heating failed because the machine is not sealed or the room is too cold. What to close, and the ambient limit to respect.
HMS 0300-9300-0001-0004: chamber temperature abnormal at the air outlet
HMS 0300-9300-0001-0004 means the chamber temperature reading is wrong, and points at the sensor at the heater air outlet. How to measure it before ordering.