N06 — Gantry rotate zero position not found
Philips CT error code, reported by the Gantry Rotation Control (Stator Control Board).
What N06 means
On Access Series CT (6/16/Dual) CT systems, status code N06 indicates: Gantry rotate zero position not found. The code originates in the Gantry Rotation Control section of the Gantry Rotation Control (Stator Control Board). Severity level warning (Warning — recoverable condition).
Reported action: Follow the Gantry Rotation Prepare Error flow chart (Section 2.4.5); check the rotation zero-position sensor/encoder before scanning. Perform a gantry homing/zero-search cycle if available..
Listed in Table 1-3 'Stator Control Board Error Code vs System Error Code' of the Philips Access CT Service Trouble Shooting Guide (459800863401 Rev. C), for the Access Series CT (6/16/Dual) family, in the 'nxx' warning-code range. No System Error Code mapping is given by the source for this code. Not confirmed for other Philips CT systems.
Full troubleshooting for N06
The complete diagnosis, cause tree, and step-by-step remedy for the Gantry Rotation Control subsystem are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with real figures.
Open the Activion16 service manualRelated Gantry Rotation Control codes
Source: Philips Access CT Service Trouble Shooting Guide — 459800863401 Rev. C. Reference information re-authored by FSELIB — not a copy of the OEM manual.