N09 — Patient table horizontal zero position not found
Philips CT error code, reported by the Patient Table / Patient Support.
What N09 means
On Access Series CT (6/16/Dual) CT systems, status code N09 indicates: Patient table horizontal zero position not found. The code originates in the Patient Table / Patient Support section of the Patient Table / Patient Support. Severity level warning (Warning — recoverable condition).
Reported action: Check the patient table horizontal zero-position switch/sensor per Section 1.10/1.11 LED indicators (Zero Position Switch LED); perform a table homing cycle before scanning..
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 N09
The complete diagnosis, cause tree, and step-by-step remedy for the Patient Table / Patient Support subsystem are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with real figures.
Open the Activion16 service manualRelated Patient Table / Patient Support 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.