Unitree H2 Error Codes

No public error-code reference has been published for the Unitree H2. Unitree hasn't released fault tables, diagnostic-code lists, or troubleshooting flowcharts — so there's no official document to link to, and we won't invent codes.

What we can tell you from owner experience: most humanoid faults cluster in a few families — joint torque faults under load, battery/charging faults, IMU and sensor errors, and communication dropouts between joint controllers. The setup notes below describe the failure modes actually reported for this model.

The H2 is Unitree's largest humanoid — plan the unboxing like a furniture delivery, not a gadget unbox: clear floor space, two people, and read the official operational guidance before first power-on. Work through About H2 and the quick-start in order; the guide's joint-calibration steps come before any dynamic movement.

Used buyers: the H2 is a research platform, so ask for the service history, deployment log, and firmware version, then check the version against the official docs hub. Dexterous hands are a wear item — the official hand disassembly/assembly guide tells you exactly what to inspect before you pay.