Technical Diagnostic Search
MopExtend Swing Arm Track Obstruction
Error 11 indicates the right-side MopExtend robotic swing arm encountered mechanical resistance or an overcurrent condition on its actuator drive motor. The MCU halts mop extension to prevent servo gear stripping or motor driver burnout.
Anti-Shock System Conductivity Fault
The FOREO BEAR 2 utilizes an integrated Anti-Shock System that samples skin conductivity across the metallic microcurrent spheres at 200 Hz. Five rapid white LED flashes indicate an out-of-range impedance measurement, open circuit, or excessive surface capacitance, triggering a protection cut-off to prevent galvanic shock.
Steam Boiler Sensor Open Circuit
Error ERR3 trips when the main control board detects an open-circuit state (>1.2MΩ or 0V return on ADC) across the steam generator NTC thermistor line, disabling combi-steam heating elements to prevent uncontrolled thermal runaway.
Assisted Tamping Motor Over-Torque
The main control board detected an excessive current draw on the 24V DC assisted tamping motor circuit (exceeding safety threshold, typically >1.8A for >300ms), indicating a mechanical jam in the tamping worm drive/rack assembly or an electrical failure in the motor driver circuit.
Moisture Detected False Alarm Loop
The USB-PD protection controller or CC (Configuration Channel) pin sensing circuit detects anomalous micro-current leakage (<50uA) or impedance shift (<100k Ohm across VBUS/GND/CC pins) due to conductive debris, corrosion, or corrupted USBSettings daemon cache, triggering a persistent software-locked moisture lockout.
Periscope Telephoto OIS Actuator Freeze
Hardware-level camera subsystem fault triggered when the Camera HAL detects zero Hall-sensor feedback from the folded periscope OIS voice coil motor (VCM), locking the camera service to prevent driver IC thermal runaway.
Inverter DC Bus Overvoltage Trip
Error E04 triggers when the bi-directional inverter internal DC bus voltage exceeds safe hardware thresholds (typically >420V-450V DC). This occurs primarily during aggressive regenerative backfeed from inductive loads, solar PV open-circuit spikes, or rapid grid voltage fluctuations during AC pass-through.
PV Input Overvoltage Shutdown
The Bluetti AC240 hardware protection triggered Error E011 due to open-circuit voltage (Voc) at the DC/PV input exceeding the maximum rated threshold of 60V DC. The internal MPPT step-down controller has isolated the PV input bus via protective MOSFET switching to prevent gate breakdown and capacitor failure.
ThermoJet Failure Descale Lockout
The main PCB detected an anomalous thermal ramp rate or excessive thermal resistance across the ThermoJet coil, often triggered by severe scale accumulation insulating the internal flow channels or a tripped inline thermal fuse/NTC open circuit, resulting in a persistent firmware descale lockout.
H100 SXM5 XID 31 Fatal Memory Error
An uncorrectable multi-bit ECC error occurred in the High Bandwidth Memory (HBM3) stack, triggering NVIDIA driver event XID 31. The GPU driver attempted dynamic memory page retirement to isolate the failing physical address, but the retirement sequence failed or the bad page table exhausted its capacity, causing the GPU to fall off the bus and trigger a fatal kernel freeze.