Imaging systems · O-Arm family

Medtronic O-Arm: troubleshooting and error codes

The ServiceForge knowledge base holds 137 documented symptoms for the Medtronic O-Arm, with 593 ranked causes, 90 diagnostic checks with test points and expected values, and 140 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

O-arm Image System does not take X-ray images

System fails to acquire X-ray images when requested

Ranked causes

1. Cable connections not secure (common)
2. Power cable not plugged in (common)
3. Inadequate boot-up time (common)
4. MVS not powered or not booted (common)
5. X-ray Image Detector not ready (common)
6. Frame Grabber, Image Processor, or Detector malfunction (occasional)
7. Foot Switch not working (occasional)
8. Hand Switch not working (occasional)
9. Broken communication/power cable (occasional)
10. Collimator not homed (occasional)
11. O-arm Door not closed (occasional)
12. X-ray Generator malfunction (occasional)
13. X-ray Tube overheated or faulted (occasional)

First check

Verify Cable Assembly connections secure

Expected: Two connections between MVS and O-arm physically secure
Tools: Visual inspection

2 more checks with pass and fail actions, 13 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Rotor does not rotate patient safety

Rotor (gantry rotation) not responding to commands

Ranked causes

1. E-Stop engaged (common)
2. Door open (common)
3. Foreign objects inside gantry (common)
4. Dingus misaligned (occasional)
5. Rotor drive signal or Movement enable signal absent (occasional)
6. Pendant faulty (occasional)
7. Rotor mechanics faulty (occasional)
8. Rotor optical switches faulty (occasional)
9. Gantry motion controller faulty (rare)
10. Power switching board faulty (rare)
11. System control board faulty (rare)
12. Ethernet switch faulty (rare)
13. O-arm computer faulty (rare)

13 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Iso-wag does not move patient safety

Iso-wag (combined motion) not responding to commands

Ranked causes

1. E-Stop engaged (common)
2. Iso-wag option not enabled (common)
3. X, Z, or wag drive signal absent (common)
4. Pendant faulty (occasional)
5. X, Z, or wag mechanics faulty (occasional)
6. Wag home optical switch faulty (occasional)
7. Positioner motion controller faulty (rare)
8. Power switching board faulty (rare)
9. System control board faulty (rare)
10. Ethernet switch faulty (rare)
11. O-arm computer faulty (rare)

11 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Tilt does not move patient safety

Tilt (gantry tilt) motion not responding to commands

Ranked causes

1. E-Stop engaged (common)
2. Door open (common)
3. Tilt drive signal or Movement enable signal absent (common)
4. Pendant faulty (occasional)
5. Tilt mechanics faulty (occasional)
6. Tilt home switch faulty (occasional)
7. Gantry motion controller faulty (occasional)
8. Power switching board faulty (rare)
9. System control board faulty (rare)
10. Ethernet switch faulty (rare)
11. O-arm computer faulty (rare)

11 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Door does not open

O-arm gantry door will not open when commanded. Door stuck in closed position or fails to respond to opening signal.

Ranked causes

1. Gantry tilted to non-zero angle (common)
2. Pendant unresponsive (common)
3. Door open signal failure (occasional)
4. Pendant failure (occasional)
5. Rotor alignment or homing issue (occasional)
6. Door cable or winch assembly failure (occasional)
7. Gantry motion controller failure (occasional)
8. System control board failure (occasional)
9. Power switching board failure (occasional)
10. O-arm computer failure (occasional)

10 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Imaging system does not drive patient safety

System unable to move or operate any motion axes

Ranked causes

1. E-Stop engaged (common)
2. System not powered on (common)
3. Clutch misaligned (occasional)
4. Deadman switch faulty (occasional)
5. F3 fuse open (occasional)
6. Drive solid state relay faulty (occasional)
7. Strain gauges faulty (rare)
8. Movement control board faulty (rare)
9. Drive motors or brakes faulty (occasional)
10. Drive gears or axles faulty (occasional)

10 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Wag motion does not move patient safety

Wag (waggle/oscillation) motion not responding to commands

Ranked causes

1. E-Stop engaged (common)
2. Wag drive signal or Movement enable signal absent (common)
3. Pendant faulty (occasional)
4. Wag mechanics faulty (occasional)
5. Wag home switch faulty (occasional)
6. Positioner motion controller faulty (occasional)
7. Power switching board faulty (rare)
8. System control board faulty (rare)
9. Ethernet switch faulty (rare)
10. O-arm computer faulty (rare)

10 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery LEDs not scrolling when connected to wall power

Battery status LEDs are not animating or scrolling when MVS is plugged into wall outlet

Ranked causes

1. No wall outlet power (common)
2. Blown MVS fuses (occasional)
3. Interconnect cable not connected (occasional)
4. MVS power board failure (occasional)
5. Blown F11 fuse (occasional)
6. Line filter failure (occasional)
7. PFC 1000 board failure (occasional)
8. Battery monitor board failure (occasional)
9. Motors battery charger board failure (occasional)

9 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Door does not close

O-arm gantry door will not close when commanded. Door stuck in open position or fails to respond to closing signal.

Ranked causes

1. Door close signal failure (common)
2. Rotor alignment or homing issue (common)
3. Door switches failure (occasional)
4. Pendant failure (occasional)
5. Gantry motion controller failure (occasional)
6. System control board failure (occasional)
7. Power switching board failure (occasional)
8. Door winch assembly failure (occasional)
9. O-arm computer failure (occasional)

9 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Motion functions do not respond, Emergency Stop indicator not lit

O-arm chassis motion functions (X, Y, Z, Wag, Tilt) do not move in response to pendant commands and green Emergency Stop indicator on pendant does not light

Ranked causes

1. Inadequate boot-up time (common)
2. Pendant faulted (common)
3. O-arm Computer faulted (common)
4. Motion Control System faulted (common)
5. Blown fuse on Power Switching Board (occasional)
6. Power Supply DC2 faulted (occasional)
7. Motion function not homed (occasional)
8. Damaged drive mechanism (occasional)
9. Low voltage on Motion Control batteries (occasional)

9 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Will not take 3D images radiation

System cannot acquire 3D imaging; spin operation fails to start

Ranked causes

1. Hand switch fault (common)
3. O-arm computer fault (occasional)
4. Pleora fault (occasional)
5. Interconnect cable fault (occasional)
6. System control board fault (occasional)
7. MVS computer fault (occasional)
8. PaxScan command processor fault (rare)
9. Generator fault (rare)
10. X-Ray tube fault (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

X axis does not drive patient safety

X (horizontal) motion axis not responding to commands

Ranked causes

1. E-Stop engaged (common)
2. X-Drive signal or Movement enable signal absent (common)
3. Pendant faulty (occasional)
4. X mechanics faulty (occasional)
5. Positioner motion controller faulty (occasional)
6. Power switching board faulty (rare)
7. System control board faulty (rare)
8. Ethernet switch faulty (rare)
9. O-arm computer faulty (rare)

9 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Z axis does not drive patient safety

Z (vertical) motion axis not responding to commands

Ranked causes

1. E-Stop engaged (common)
2. Y-Drive signal or Movement enable signal absent (common)
3. Pendant faulty (occasional)
4. Positioner motion controller faulty (occasional)
5. Power switching board faulty (rare)
6. System control board faulty (rare)
7. Ethernet switch faulty (rare)
8. O-arm computer faulty (rare)
9. Z mechanics faulty (occasional)

9 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

3D spin begins but does not complete radiation

Spin starts but stops prematurely before acquisition finishes

Ranked causes

1. Hand switch fault (common)
3. Foreign debris inside gantry (occasional)
4. Motion batteries fault (occasional)
5. Gantry motion controller fault (occasional)
6. Pleora fault (occasional)
7. Interconnect cable fault (occasional)
8. PaxScan command processor fault (rare)
9. Generator fault (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Collimator does not move patient safety

Collimator not responding to commands

Ranked causes

1. E-Stop engaged (common)
2. Collimator drive signal or Movement enable signal absent (common)
3. Pendant faulty (occasional)
4. Rotor motion controller faulty (occasional)
5. System control board faulty (rare)
6. Ethernet switch faulty (rare)
7. O-arm computer faulty (rare)
8. Collimator mechanics faulty (occasional)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Lateral shift button unresponsive with no LED indicator

Pressing lateral shift button produces no response and LED on control pendant does not light

Ranked causes

1. O-Arm imaging system not powered on (common)
2. Lateral shift signal circuit fault (occasional)
3. Control pendant failure (occasional)
4. Lateral shift pressure switch failure (occasional)
5. Lateral shift pump assembly failure (occasional)
6. Lateral shift hydraulic cylinders failure (occasional)
7. Power switching board circuit failure (rare)
8. System control board circuit failure (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No response to button press, LED does not light

Button press produces no response; LED indicator does not light

Ranked causes

1. O-arm imaging system not powered on (common)
2. Lateral shift signal problem (occasional)
3. Pendant defective (occasional)
4. Lateral shift pressure switch fault (occasional)
5. Lateral shift pump assembly failure (occasional)
6. Lateral shift hydraulic cylinders defective (occasional)
7. Power switching board failure (occasional)
8. System control board failure (occasional)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Red X for communication on pendant in 3D mode

Communication indicator shows failure status on pendant display in 3D imaging mode

Ranked causes

1. Network settings mismatch between MVS and StealthStation system (common)
2. StealthStation system navigation feature not available or enabled (common)
3. iOR feature not enabled or configured (occasional)
4. Network cable disconnected or faulty (common)
5. Network port failure on MVS or StealthStation (occasional)
6. Internal network cable disconnected or faulty (occasional)
7. MVS computer hardware failure (rare)
8. StealthStation system malfunction (rare)

First check

Verify network settings match on both systems

Test point: MVS and StealthStation network configuration
Expected: Identical network settings on both systems

6 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Y axis does not drive patient safety

Y (depth) motion axis not responding to commands

Ranked causes

1. E-Stop engaged (common)
2. Y-Drive signal or Movement enable signal absent (common)
3. Positioner motion controller faulty (occasional)
4. Power switching board faulty (rare)
5. System control board faulty (rare)
6. Ethernet switch faulty (rare)
7. O-arm computer faulty (rare)
8. Y mechanics faulty (occasional)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Grey image with lines high voltage

Display shows grey image with visible line artifacts, indicates loss of X-ray output

Ranked causes

1. No X-ray output (common)
2. Pleora interface defective (occasional)
3. LVDS cable defective (occasional)
4. System control board defective (occasional)
5. PaxScan command processor defective (rare)
6. PaxScan detector defective (rare)
7. Generator defective (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

MVS does not power up (yellow LED on, display black)

Yellow power indicator lights but display remains black after On/Off switch transition

Ranked causes

1. MVS monitor defective (common)
2. UPS defective (occasional)
3. MVS computer BIOS settings incorrect (occasional)
4. MVS application not running (occasional)
5. NVIDIA settings incorrect (occasional)
6. MVS computer defective (occasional)
7. MVS power board defective (occasional)

First check

Test/replace MVS monitor

2 more checks with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

MVS does not start caution

MVS unit fails to start despite green Line Power indicator being lit

Ranked causes

1. MVS Power Board boot-up in progress (common)
2. Fuse F10 blown on MVS Power Board (common)
3. MVS Power Board faulted (occasional)
4. UPS faulted (occasional)
5. MVS Computer faulted (occasional)
6. LCD Display Monitor faulted (occasional)
7. Loose wires or faulty MVS Power Switch (rare)

7 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No DICOM server connection

MVS system cannot establish connection to DICOM imaging server

Ranked causes

1. Incorrect network settings (common)
2. Hospital network misconfiguration (occasional)
3. Network cable fault (occasional)
4. DICOM server not configured (occasional)
5. Network port failure (rare)
6. Internal network cable fault (rare)
7. MVS computer failure (rare)

7 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No image or black image high voltage

Display shows no image or completely black image

Ranked causes

1. Hand switch or foot switch issue (common)
2. Pleora interface issue (occasional)
3. Interconnect cable issue (occasional)
4. MVS computer issue (occasional)
5. PaxScan detector or command processor defective (rare)
6. Generator defective (rare)
7. X-Ray tube defective (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pendant displays motion bars scrolling/blinking

Pendant displays scrolling or blinking motion bars during startup

Ranked causes

1. E-Stop is engaged (common)
2. Dongle not connected or improperly seated (common)
3. Motion controllers malfunction (occasional)
4. Power switching board malfunction (occasional)
5. System control board malfunction (occasional)
6. Ethernet switch malfunction (occasional)
7. O-arm computer malfunction (occasional)

7 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pendant displays scrolling motion bars at startup

On startup, pendant displays scrolling/blinking motion bars

Ranked causes

1. E-Stop is engaged (common)
2. Dongle not connected or seated (common)
3. Motion controllers faulty (occasional)
4. Power switching board faulty (occasional)
5. System control board faulty (occasional)
6. Ethernet switch faulty (occasional)
7. O-arm computer faulty (occasional)

7 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Will not take 2D images (beeps continuously) high voltage

System fails to capture 2D images and produces continuous beeping

Ranked causes

1. Hand switch issue (common)
2. Pleora interface issue (occasional)
3. Interconnect cable issue (occasional)
4. MVS computer issue (occasional)
5. PaxScan detector or command processor defective (rare)
6. Generator defective (rare)
7. X-Ray tube defective (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Will not take 2D images (no or short beeps) high voltage

System fails to capture 2D images and produces no sound or only short beeps

Ranked causes

1. Hand switch issue (common)
2. System control board issue (occasional)
3. Pleora interface issue (occasional)
4. Interconnect cable issue (occasional)
5. MVS computer issue (occasional)
6. PaxScan command processor defective (rare)
7. Generator defective (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery level low or critical message on pendant

Pendant displays low battery or critical battery warning message

Ranked causes

1. System insufficiently charged (common)
2. No wall outlet power available (common)
3. Motion batteries not holding charge (occasional)
4. Motion battery charger board failure (occasional)
5. Power switching board failure (occasional)
6. System control board failure (rare)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Fixed Pendant keys or LEDs not responding caution

Key pads or LED indicators on the fixed pendant are not functional

Ranked causes

1. Insufficient pressure applied to pendant buttons (common)
2. Wiring fault or inadequate contact (occasional)
3. No power to Pendant or LCD not displaying (occasional)
4. Hardware fault inside Pendant or O-arm (occasional)
5. System Control Board faulted (rare)
6. Communications interrupted between Pendant and O-arm (rare)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Frame rate below recommended levels

O-arm imaging system operates below optimal frame rate, displayed as message on MVS

Ranked causes

1. Interconnect cable issue (common)
2. Pleora interface issue (occasional)
3. MVS computer issue (occasional)
4. System control board issue (occasional)
5. PaxScan command processor issue (rare)
6. Generator issue (rare)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Green check for communications but StealthStation system does not recognize tracker

Communication link established but tracking system not detected or operational

Ranked causes

1. Multiple StealthStation system cameras powered on simultaneously (common)
2. StealthStation system camera hardware failure (occasional)
3. Tracker control box malfunction or disconnected (common)
4. Tracker hardware failure (occasional)
5. Operating room light interference affecting tracker (occasional)
6. StealthStation system firmware or hardware failure (rare)

First check

Count active StealthStation cameras in room

Test point: Room environment and camera power status
Expected: Only one camera powered on

3 more checks with pass and fail actions, 9 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Image quality degraded: grey image with lines

Display shows grey image with visible horizontal or vertical lines instead of normal X-ray image

Ranked causes

1. X-ray generation stopped or detector not receiving X-rays (common)
2. Pleora video interface failure (occasional)
3. LVDS video cable failure or loose connection (occasional)
4. System control board failure (occasional)
5. PaxScan detector or command processor failure (rare)
6. Generator malfunction (rare)

7 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Low Battery message on MVS

Modular Visualization System (MVS) displays low battery warning

Ranked causes

1. No wall outlet power (common)
2. Blown MVS fuses (occasional)
3. Power cable failure (occasional)
4. UPS battery failure (occasional)
5. MVS power board failure (occasional)
6. Isolation transformer failure (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

MVS does not power up (no green line power LED) high voltage

Display shows no green line power indicator when On/Off switch is transitioned

Ranked causes

1. No wall outlet power (common)
2. MVS fuses open (common)
3. MVS power cable defective (occasional)
4. Green line power indicator defective (occasional)
5. Isolation transformer defective (occasional)
6. MVS power board defective (occasional)

First check

Verify wall outlet power available

2 more checks with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

MVS screen is black patient safety

Monitor display is black with no video output

Ranked causes

1. Monitor power switch off (common)
2. Incorrect NVIDEA settings (occasional)
3. Monitor cable failure or loose (occasional)
4. MVS monitor failure (rare)
5. UPS failure (rare)
6. MVS computer failure (rare)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No remote presence connection

MVS system cannot connect to remote presence system for telemedicine

Ranked causes

1. Incorrect network settings (common)
2. Remote presence software misconfiguration (common)
3. Network cable fault (occasional)
4. Network port failure (rare)
5. Internal network cable fault (rare)
6. MVS computer failure (rare)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

O-arm Chassis does not start, System On indicator not lit

O-arm chassis will not power on and yellow System On indicator does not light

Ranked causes

1. Power Switch not fully on (common)
2. Batteries not charged (common)
3. Blown fuse on Power Switching Board (occasional)
4. Power Supply on Power Switching Board faulted (occasional)
5. Interlock Key Switch in Lock position (occasional)
6. Loose wiring or switch faults (occasional)

First check

Turn Power Switch to start position

Expected: Power Switch in start position
Tools: Visual inspection

1 more check with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pendant does not respond caution

Pendant control signals not recognized by system; user unable to control O-arm system via pendant

Ranked causes

1. Pendant signals not detected by application (common)
2. Pendant hardware failure (occasional)
3. System control board failure (occasional)
4. O-arm computer software issue (occasional)
5. O-arm computer hardware failure (rare)
6. Ethernet switch failure (rare)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Rotor motion intermittent patient safety

Rotor motion operates sporadically or inconsistently

Ranked causes

1. Foreign objects inside gantry (common)
2. Homing error (common)
3. Rotor drive signal intermittent (occasional)
4. Pendant faulty (occasional)
5. Rotor mechanics faulty (occasional)
6. Gantry motion controller faulty (occasional)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

System does not boot

No change on On/Off key switch transition; system remains unresponsive

Ranked causes

1. Bypass key switch malfunction (occasional)
2. On/Off key switch malfunction (common)
3. Batteries discharged or defective (common)
4. Chargers defective (occasional)
5. System control board malfunction (occasional)
6. Power switching board malfunction (occasional)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit does not power on

No change on On/Off key switch transition

Ranked causes

1. Bypass key switch faulty (occasional)
2. On/Off key switch faulty (common)
3. Batteries depleted or faulty (common)
4. Chargers faulty (occasional)
5. System control board faulty (occasional)
6. Power switching board faulty (occasional)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Drive operates in circles or one wheel drives patient safety

Vehicle drives in circular pattern or only one wheel drives

Ranked causes

1. Drive chains worn (common)
2. Drive motors faulty (occasional)
3. Clutch misaligned (occasional)
4. Strain gauges faulty (rare)
5. Movement control board faulty (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Error initializing collimator patient safety

Collimator fails to complete initialization sequence

Ranked causes

1. Homing error (common)
2. Collimator drive signal or Movement enable signal absent (common)
3. Rotor motion controller faulty (occasional)
4. Pendant faulty (occasional)
5. Collimator mechanics faulty (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Foot Switch does not work caution

Foot pedal switches do not respond to operator input or control commands

Ranked causes

1. Foot switch cable connection inadequate (common)
2. Connector pins bent at Foot Switch or chassis (common)
3. Loss of signal from Foot Switch to internal circuit (occasional)
4. Loss of signal to Move Enable Redundancy Safety Switches (rare)
5. System Control Board faulted (rare)

First check

Test continuity between pins 3 and 4

Test point: Pins 3 & 4 of 8-pin foot switch connector
Expected: Meter should not beep initially; beeps when left pedal pressed
Tools: Multimeter (continuity mode)

3 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Generator error 25 high voltage

X-ray generator displays error code 25 indicating power or charging issue

Ranked causes

1. System insufficiently charged (common)
2. No wall outlet power (common)
3. X-ray batteries not holding charge (occasional)
4. X-ray battery charger board failure (occasional)
5. Battery monitor board failure (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Grainy 2D or 3D images

Images show excessive noise or grain, reducing image quality

Ranked causes

1. Gain calibration error (common)
2. Auto brightness setting issue (occasional)
3. Region of interest too large (occasional)
4. Insufficient noise reduction (occasional)
5. Insufficient X-ray dose (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Green check for communications but no image transfer to StealthStation system

Communication verified but image data not received by StealthStation system

Ranked causes

1. StealthStation camera positioned too close or too far from MVS system (common)
2. StealthStation system camera hardware failure (occasional)
3. Tracker control box malfunction (occasional)
4. Tracker hardware failure (occasional)
5. StealthStation system hardware or software failure (rare)

First check

Verify StealthStation camera positioning

Test point: Camera distance and alignment to MVS system
Expected: Camera at correct operating distance

2 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Image quality degraded: grainy 2D or 3D images

2D or 3D X-ray images display with excessive noise or grain pattern reducing diagnostic quality

Ranked causes

1. Detector gain calibration not optimized for current setup (common)
2. Auto-brightness compensation not optimal for imaging task (occasional)
3. Region of interest too large causing undersampling (occasional)
4. Insufficient noise reduction applied (occasional)
5. X-ray dose too low for image quality requirements (common)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Iso-wag moves intermittently patient safety

Iso-wag motion operates sporadically or inconsistently

Ranked causes

1. X, Z, or wag drive signal intermittent (common)
2. Homing error (common)
3. Pendant faulty (occasional)
4. X, Z, or wag mechanics faulty (occasional)
5. Positioner motion controller faulty (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Lateral shift button unresponsive with LED lit

Pressing lateral shift button produces no response although LED indicator lights up

Ranked causes

1. Lateral shift pressure switch failure (common)
2. Lateral shift pump assembly failure (common)
3. Lateral shift hydraulic cylinders failure (common)
4. Power switching board circuit failure (occasional)
5. System control board circuit failure (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No response to button press, LED lights

Button press produces no response; LED indicator lights

Ranked causes

1. Lateral shift pressure switch fault (common)
2. Lateral shift pump assembly failure (occasional)
3. Hydraulic cylinders defective (occasional)
4. Power switching board failure (occasional)
5. System control board failure (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No worklist server connection

MVS cannot connect to hospital worklist server for patient data

Ranked causes

1. Incorrect network settings (common)
2. Network cable fault (occasional)
3. Network port failure (rare)
4. Internal network cable fault (rare)
5. MVS computer failure (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Noisy drive or motion axis caution

Audible noise from drive or motion axis operation

Ranked causes

1. Covers bent or misaligned (common)
2. Drive axes faulty (occasional)
3. Motor assembly faulty (occasional)
4. Motion controller faulty (occasional)
5. Drive chains worn (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

O-arm does not drive, Movement Enable indicator lit

O-arm chassis movement fails to respond even though yellow Movement Enable indicator is lit

Ranked causes

1. Drive System faulted (common)
2. Mechanical clutch disengaged (common)
3. Loose wires to Motion Control Board (occasional)
4. Microswitch Dead Man faulted (occasional)
5. Loose Drive Chains (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pendant displays boot message

Pendant displays 'System Booting, Please Wait' but does not complete startup

Ranked causes

1. O-arm application not started (common)
2. O-arm computer malfunction (occasional)
3. Pendant malfunction (occasional)
4. System control board malfunction (occasional)
5. Power switching board malfunction (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pendant shows System Booting message at startup

On startup, pendant displays System Booting, Please Wait but does not complete boot

Ranked causes

1. O-arm application not started (common)
2. O-arm computer faulty (occasional)
3. Pendant faulty (occasional)
4. System control board faulty (occasional)
5. Power switching board faulty (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pump operates but system does not move caution

Pump motor runs when lateral shift button pressed but bed/gantry does not move

Ranked causes

1. Hydraulic system pressure leak (common)
2. Insufficient hydraulic fluid level (common)
3. Lateral shift pump assembly failure (occasional)
4. Lateral shift hydraulic cylinders failure (occasional)
5. Power switching board circuit failure (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pump runs but system does not lift

Pump operates but lateral shift system fails to lift

Ranked causes

1. Hydraulic pressure leak (common)
2. Hydraulic fluid level low (common)
3. Lateral shift pump assembly failure (occasional)
4. Lateral shift hydraulic cylinders defective (occasional)
5. Power switching board failure (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Remote Pendant keys or LEDs not working caution

Key pads or LED indicators on the remote pendant cable are not functional

Ranked causes

1. Remote Pendant cable connection not secure (common)
2. Wiring fault, inadequate contact, or failing LEDs (occasional)
3. No power to Pendant or LCD not displaying (occasional)
4. Hardware fault inside Pendant or O-arm (occasional)
5. Communications interrupted between Remote Pendant and O-arm (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

More symptoms

Startup only while On/Off switch held
System only runs while power switch held, shuts down when released
Tilt motion intermittent
Wag motion intermittent
X axis drives intermittently
Y axis drives intermittently
Z axis drives intermittently
Display image is discolored or distorted
Motion battery LEDs not lit
MVS does not power up (no yellow on indicator)
O-arm does not charge, battery charging indicator not lit
Streaks in 3D images
System boots in standalone mode
System boots successfully but runs standalone
System descends too slowly when lateral shift released
System does not drop fast enough when releasing lateral shift
Wireless mouse does not sync
X-Ray battery LEDs not lit
Cannot communicate with MVS system
Hand Switch does not work
Motion functions do not respond, Emergency Stop indicator blinking
MVS communication established but not ready
MVS does not start, Line Power indicator not lit
Pendant displays black screen at startup
Pendant displays generator bars scrolling/blinking
Pendant displays scrolling generator bars at startup
Pendant remains black on startup
Pump runs constantly after lifting system
Pump runs continuously after lateral shift activated
Pump shuts off before lateral shift completes
Pump shuts off before system is lifted
Red X for MVS communication (disconnected)
Red X for MVS communication (ready check)
Artifact or foreign object in every image
Calibration: X-ray Generator and Tube
Drive motion erratic or inconsistent
O-arm does not drive, Movement Enable indicator flashing
Ring artifacts in 3D images
Shift Wheels do not lower or raise on request
Starbursts or bright spots in 3D images
X-ray Generator reconfiguration required
Battery monitor voltage out of range at J1
Brake power supply voltage out of range
Calibration: Motion range verification
Calibration: X-ray image detector fluoro gain
Charging circuit fault indicated
Computer power supply voltage out of range
Display resolution set incorrectly
Emergency Stop button does not halt chassis movement
Emergency Stop button does not halt pendant axis motion
Emergency Stop buttons not functioning
Emergency Stop indicators not flashing after button press
Ethernet power supply voltage out of range
Fuse F1 open or defective
Fuse F2 open or defective
Gantry door is open
Half white images (top/bottom half)
Home calibration interrupted or incomplete
Hydraulic fluid leakage detected
Hydraulic fluid level out of range
Image Detector location LEDs do not light
Logic power supply voltage out of range
Mobile View Station does not power on
Mobile View Station System On indicator does not light
Movement Enable indicator or Emergency Stop LEDs not resetting after Reset button press
MVS shuts down within first three minutes after unplugging
O-arm Chassis Battery Charging indicator does not light
O-arm Chassis System On indicator does not light
O-arm Movement Enable indicator does not light
Pendant LED test failure
System descends too quickly when lateral shift released
System drops too fast when releasing lateral shift
System Technical Service Console not accessible
Video display scrolls
Wireless mouse does not work
X-ray system performance suboptimal
X-ray Tube location LEDs do not light

77 more symptoms with ranked causes and checks are in ServiceForge. Connect ServiceForge to your AI

Error codes

Code	Meaning	Trigger	Severity
`100`	Homing Error on axis A	System attempts to home axis A	error
`101`	Error closing door	Door closure command issued	error
`102`	Error tilting for door close	Tilt command during door close sequence	error
`103`	Error opening door	Door opening command issued	error
`104`	Error tilting for door open	Tilt command during door open sequence	error
`105`	Error moving rotor for door open	Rotor positioning during door open sequence	error
`106`	Offset Error on axis A	Position offset command on axis A	error
`107`	Cannot move due to loss of move enable	Movement command issued when move enable signal lost	error
`108`	Cannot move due to loss of motor power	Movement command issued when motor power unavailable	error
`109`	Unexpected stop, system will retry move	Motion halted unexpectedly during move sequence	warning
`110`	Two second watchdog timer with PC	PC communication timeout (2 seconds)	error
`111`	Five second watchdog timer with PC	PC communication timeout (5 seconds)	error
`200`	Motor power not present during verification	Power verification sequence at startup	critical
`201`	Move enable active during verification	Verification sequence when move enable signal active	critical
`202`	System moved while in locked state; unwanted motion	Motion detected during locked state	critical
`203`	Source / Detector Alignment	Alignment verification sequence	error
`300`	Move enabled not configured correctly on axis A	Configuration verification at startup	critical
`301`	E-Stop circuitry failure on startup	E-Stop circuit verification during power-up	critical
`302`	Door interlock switch failure	Door interlock verification at startup or during operation	critical
`303`	Invalid hardware ID	Hardware identification check at startup	critical
`601`	Unrecognized command	Invalid command received by motion controller	error
`602`	Command only valid from program	Non-program mode command issued to motion controller	error
`603`	Command not valid in program	Program-invalid command in program mode	error
`604`	Operand error	Invalid operand in command	error
`605`	Input buffer full	More data received than input buffer capacity	warning
`606`	Number out of range	Numeric parameter exceeds allowed range	error
`607`	Command not valid while running	Non-running-context command during motion	error
`608`	Command not valid when not running	Running-context command when motion inactive	error
`609`	Variable error	Invalid variable reference or operation	error
`610`	Empty program line or undefined label	Program line undefined or label not found	error
`611`	Invalid label or line number	Reference to non-existent label or line	error
`612`	Subroutine more than 16 deep	Subroutine nesting exceeds 16 levels	error
`613`	JG only valid when running in jog mode	JG command issued in non-jog mode	error
`614`	EEPROM check sum error	EEPROM data verification	critical
`615`	EEPROM write error	EEPROM write operation failure	critical
`616`	IP incorrect sign during position move or IP given during forced deceleration	Position move or deceleration command with invalid IP parameter	error
`617`	ED, BN and DL not valid while program running	ED/BN/DL commands during program execution	error
`618`	Command not valid when contouring	Non-contouring command during contour mode	error
`619`	Application strand already executing	Attempt to start task already running	error
`620`	Begin not valid with motor off	Begin command when motor is off	error
`621`	Begin not valid while running	Begin command during motion	error
`622`	Begin not possible due to Limit Switch	Begin command with limit switch engaged	error
`624`	Begin not valid because no sequence defined	Begin command without defined motion sequence	error
`625`	Variable not given in IN command	IN command missing required variable	error
`628`	S operand not valid	Invalid S operand in command	error
`629`	Not valid during coordinated move	Non-coordinated command during multi-axis move	error
`630`	Sequence segment too short	Motion segment duration below minimum	error
`631`	Total move distance in a sequence > 2 billion	Cumulative motion distance exceeds limit	error
`632`	More than 511 segments in a sequence	Motion sequence exceeds segment count limit	error
`633`	VP or CR commands cannot be mixed with LI commands	Mixed command types in sequence	error
`641`	Contouring record range error	Contour data index out of range	error
`642`	Contour data being sent too slowly	Contour data transmission rate too low	warning
`646`	Gear axis both master and follower	Axis configured as both master and follower	error
`650`	Not enough fields	Command with insufficient data fields	error
`651`	Question mark not valid	Question mark in invalid context	error
`652`	Missing "or string too long"	Quote missing or string exceeds length limit	error
`653`	Error in {}	Braces syntax error	error
`654`	Question mark part of string	Question mark embedded in string	error
`655`	Missing [ or []	Square bracket syntax error	error
`656`	Array index invalid or out of range	Array access with invalid index	error
`657`	Bad function or array	Invalid function or array reference	error
`658`	Bad command response (i.e._GNX)	Controller returns malformed response	error
`659`	Mismatched parentheses	Unbalanced parentheses in command	error
`660`	Download error - line too long or too many lines	Program download with excessive line length or line count	error
`661`	Duplicate or bad label	Duplicate label or invalid label name	error
`662`	Too many labels	Label count exceeds system limit	error
`663`	IF statement without ENDIF	Unmatched IF block	error
`665`	IN command must have a comma	IN command without comma separator	error
`666`	Array space full	Variable/array storage at capacity	error
`667`	Too many arrays or variables	Array/variable count exceeds limit	error
`668`	Not valid from USB Port	USB-invalid command via USB interface	error
`671`	IN only valid in task #0	IN command in task other than task 0	error
`680`	Record mode already running	Attempt to start record mode when already active	error
`681`	No array or source specified	Record/playback without source array	error
`682`	Undefined Array	Reference to non-existent array	error
`683`	Not a valid number	Non-numeric value in numeric context	error
`684`	Too many elements	Data structure exceeds element count limit	error
`690`	Only A B C D valid operand	Invalid axis operand in command	error
`696`	SM jumper needs to be installed for stepper motor operation	Stepper motor command without SM jumper	error
`697`	Bad Binary Command Format	Malformed binary command	error
`698`	Binary Commands not valid in application program	Binary command in application program	error
`699`	Bad binary command number	Invalid binary command identifier	error
`700`	Not valid when running ECAM	Non-ECAM command during ECAM operation	error
`701`	Improper index into ET (must be 0-256)	ET array index out of valid range (0-256)	error
`702`	No master axis defined for ECAM	ECAM command without master axis	error
`703`	Master axis modulus greater than 256 ~ EP value	Master axis modulus setting invalid	error
`704`	Not valid when axis performing ECAM	Command during axis ECAM operation	error
`705`	EB1 command must be given first	ECAM command sequence error	error
`710`	No hall effect sensors detected	Hall effect sensor detection at startup	critical
`711`	Must be made brushless by BA command	Brushless operation command sequence error	error
`712`	BZ command timeout	BZ (brushless initialization) command timeout	error
`713`	No movement in BZ command	No motor motion during BZ initialization	error
`714`	BZ command runaway	Motor runaway during BZ initialization	error
`718`	Controller has GL1600 not GL1800	GL1800 command on GL1600 controller	error
`720`	Bad Ethernet transmit	Ethernet transmission failure	error
`721`	Bad Ethernet packet received	Corrupted Ethernet packet received	error
`722`	Ethernet input buffer overrun	Ethernet buffer overflow	warning
`723`	TCP lost sync	TCP synchronization loss	error
`724`	Ethernet handle already in use	Attempt to reuse active Ethernet handle	error
`725`	No ARP response from IP address	ARP request to IP address fails	error
`726`	Closed Ethernet Handle	Operation on closed Ethernet handle	error
`727`	Illegal Modbus Function Code	Unsupported Modbus function code received	error
`728`	IP address not valid	Invalid IP address provided	error
`730`	Illegal IOC command	Invalid IOC (I/O control) command	error
`731`	Timeout On Serial Port	Serial port communication timeout	warning
`732`	Analog inputs not present	Analog input hardware not detected	error
`E01`	Failure in power up routine. No communication link between HT Controller Board and ATP Console CPU Board.	Power-up initialization failure	critical
`E02`	Failure in power up routine. RAD Generator configured as R&F Generator. No communication link between ATP Console CPU Board and Fluoro CPU Board.	Power-up when misconfigured as R&F generator	critical
`E03`	Failure in power up routine. All workstations are unconfigured.	Power-up with no configured workstations	critical
`E04`	"Prep" signal received without console order.	Prep signal active without user request	error
`E05`	"Fluoro" signal active without request.	Fluoroscopy signal active without user order	error
`E06`	"Prep" or/and 'Exposure" orders activated during power up routine.	Prep or Exposure command during power-up	error
`E07`	Wrong data for X-ray Tube-2.	X-ray Tube-2 data validation failure	error
`E08`	Wrong data for X-ray Tube-1.	X-ray Tube-1 data validation failure	error
`E09`	Generator overload. Arcing or IGBT fault.	Generator overload condition detected	critical
`E10`	EEPROM corrupted or no initialized on ATP Console CPU Board or on HT Controller Board. Wrong data calibration.	EEPROM validation failure at startup	critical
`E11`	No voltage in capacitor bank.	Capacitor voltage check	critical
`E12`	No mA during exposure or mA out of tolerance. Wrong filament current.	X-ray tube current measurement during exposure	error
`E13`	No kVp during exposure or kVp out of tolerance.	X-ray tube voltage measurement during exposure	error
`E14`	Exposure signal without X-ray exposure console command.	Unintended exposure signal detected	critical
`E15`	No current on filament. Wrong selection of focal spot detected during 'Prep".	Filament current detection during Prep phase	error
`E16`	Invalid value of: kVp, mA or kW.	Parameter value validation at startup or during operation	error
`E17`	Communication error between ATP Console CPU Board and HT Controller Board.	Inter-board communication failure	critical
`E18`	Rotor running without order or rotor error.	Unintended rotor motion detected	error
`E19`	mA detected without "Exposure" order.	Unexpected tube current detected	error
`E20`	kVp detected without "Exposure" order.	Unexpected high voltage detected	error
`E21`	Wrong Tube-1 selection.	Tube-1 selection validation failure	error
`E22`	Wrong Tube-2 selection.	Tube-2 selection validation failure	error
`E23`	Calibration data not stored.	Calibration data save failure	error
`E24`	The Bucky had not been detected to be moving.	Bucky motion detection during operation	error
`E25`	Battery failure in Battery Powered Generators.	Battery health check	error
`E26`	Voltage failure in Battery Powered Generators with Stand-Alone.	Battery voltage check in stand-alone mode	critical
`E27`	Failure in Console EPROM. Bad Checksum.	Console EPROM checksum verification	critical
`E33`	No communication link between Generator and Serial Console or PC unit.	Generator communication check	error
`E34`	Technique error.	Exposure technique validation	error
`E35`	Door open.	Door interlock verification during operation	error
`E36`	Heat units. Overheating.	Temperature or heat load threshold exceeded	warning
`E37`	Tube overload.	X-ray tube heat load exceeds limit	error
`E50`	Interrupted exposure.	Exposure stopped unexpectedly	warning
`E98`	DIP Switch 3024SW2-3 on ATP Console CPU Board set for configuration and calibration mode active (Service Mode).	Service mode DIP switch detected	info

Likely causes and actions for each code are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.