What should a field engineer do about 4423?

Gantry error detected. Turn gantry off for 5 seconds and try again. If problem persists call service.. Isolate the Gantry / rotation subsystem and follow the status-code troubleshooting in the service manual. FSELIB documents the full diagnosis and remedy for the Aquilion 16 / Aquilion RX / Aquilion ONE / Aquilion S16 / Asteion Super4 / Activion16.

Error conditionGantry / rotation

4423 — C-CONT internal communication error

Q: What is Canon Medical (Toshiba) CT error code 4423?

C-CONT internal communication error. It is reported by the console error system (EMS) on Aquilion 16 and Aquilion RX and Aquilion ONE and Aquilion S16 and Asteion Super4 and Activion16 CT systems. Severity: Error condition; subsystem: Gantry / rotation.

Canon Medical (Toshiba) CT error code, reported by the console error system (EMS).

What 4423 means

On Aquilion 16 and Aquilion RX and Aquilion ONE and Aquilion S16 and Asteion Super4 and Activion16 CT systems, status code 4423 indicates: C-CONT internal communication error. The code originates in the Gantry / rotation section of the console error system (EMS). Severity level error (Error condition).

Reported action: Gantry error detected. Turn gantry off for 5 seconds and try again. If problem persists call service..

Reported by the Toshiba/Canon CT console error system (errmsg.eng / EMS error message table), shared across the Aquilion, Asteion and Activion CT platforms.

Full troubleshooting for 4423

The complete diagnosis, cause tree, and step-by-step remedy for the Gantry / rotation subsystem are documented in the FSELIB Canon Medical (Toshiba) service manual — re-authored, web-first, with real figures.

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Related Gantry / rotation codes

90000010Gantry is tilted — tilt angle not at zero B1300000Error in Wedge movement B1320000Error in Slit movement B1330000Error in BeamTrimmer movement B1350000Error in Gantry Tilt B1360000Error in Gantry Rotation B1361000Error in Gantry Rotation B13F0000Gantry is not powered ON

Related service procedures

Run the console malfunction-diagnosis program (hwtest)Console (Diagnostics)Run the independent MHR PWB test (diagnostics) from the RTM terminalConsole (Diagnostics)Remove the host PC unit (PX74-07959 GR-1/GR-2)Console (Operation)Remove the host PC unit (PX74-08766 GR-1/GR-2)Console (Operation)Remove and install an RDD disk/power-supply unit (Rorke Data)Console (Recon)Remove and install an RDD fan unit (Rorke Data)Console (Recon)

Discuss 4423 with other field engineers in the FSELIB forum

Source: errmsg.eng — Toshiba/Canon CT console (EMS) error message table. Reference information re-authored by FSELIB — not a copy of the OEM manual.