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Asset Type
Surgical Fluid Management System
Manufacturer
Model
What This Guide Helps With
Troubleshooting Neptune 3 rover docking, docking station alignment, drain connection, waste transfer, and external setup problems.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Action: Confirm the Neptune 3 is not being used on an active patient or during an active surgical case before troubleshooting docking or waste transfer problems.
Expected outcome: The device is removed from clinical use before service checks begin.
Why it matters: Waste transfer and docking issues can interrupt suction availability, create fluid exposure risk, or cause contamination concerns.
If this resolves the immediate clinical need by moving the case to another suction source, stop and document the action.
Verify the Reported Docking or Transfer Problem
Action: Ask staff what was observed. Confirm whether the issue is:
- Rover will not dock
- Rover will not recognize the docking station
- Waste transfer will not start
- Waste transfer starts then stops
- Drain or transfer fault appears
- Docking station does not power or respond
- Rover does not empty after docking
Expected outcome: The exact symptom is confirmed before troubleshooting.
Why it matters: “Will not dock” may be a mechanical alignment problem, while “will not transfer” may involve drain connection, tank level sensing, power, or dock communication.
Inspect the Docking Area for Obstructions
Action: Check the floor area, docking station, and rover path for carts, debris, raised floor transitions, cables, fluid, or anything preventing proper alignment.
Expected outcome: The rover can approach the docking station straight and fully seat into position.
Why it matters: A rover that is slightly misaligned may appear docked but fail to make the required mechanical or communication connection.
If obstruction removal restores docking and transfer operation, stop and document.
Check Docking Station Power
Action: Verify the docking station is plugged into a known-good outlet. Check for power indicators, tripped GFCI, loose plugs, damaged cords, or switched outlets.
Expected outcome: The docking station has stable facility power and normal indicator status.
Why it matters: If the dock is not powered, the rover may physically dock but fail to recognize the station or begin waste transfer.
If restoring power resolves the issue, stop and document.
Inspect the Rover Exterior and Docking Contacts
Action: Inspect the rear docking interface on the rover and the mating area on the docking station. Look for visible damage, bent guides, cracked plastic, contamination, dried waste residue, or foreign material.
Expected outcome: The docking surfaces are clean, intact, and able to mate properly.
Why it matters: Waste residue or physical damage can prevent the rover from fully seating or communicating with the dock.
If cleaning visible external contamination restores normal docking, stop and document.
Confirm the Rover Is Fully Seated
Action: Reposition the rover and dock it again using normal staff-facing operation. Do not force it. Confirm it locks or settles into the expected docked position.
Expected outcome: The rover seats evenly and the system recognizes the docked condition.
Why it matters: A partially docked rover can cause transfer failure even if it looks close enough visually.
If proper alignment resolves the issue, stop and document.
Check the Waste Transfer Path
Action: Inspect external waste transfer hoses, drain tubing, dock drain connection, and visible plumbing connections for kinks, blockage, loose fittings, or improper routing.
Expected outcome: The waste transfer path is connected, open, and not visibly restricted.
Why it matters: A blocked or kinked waste path can prevent the rover from emptying or cause the transfer cycle to stop.
If correcting the hose or drain routing resolves the issue, stop and document.
Check for Drain or Facility Plumbing Problems
Action: Determine whether other docked rovers or waste systems are having the same problem at the same docking location. If available, test the rover at another known-good docking station.
Expected outcome: The issue is isolated to either the rover, the docking station, or the facility drain connection.
Why it matters: A clogged or restricted facility drain can look like a Neptune 3 failure when the device itself is functioning normally.
If the rover works at another dock, remove the original dock from service and notify facilities or appropriate support.
Check for Tank Full or Level-Related Conditions
Action: Review the rover display or indicators for tank full, waste level, drain, or transfer-related messages.
Expected outcome: The displayed condition matches the actual state of the rover and transfer process.
Why it matters: A tank level or drain-related fault may prevent waste transfer or make the rover appear unable to empty.
If the issue is a simple full-tank or incomplete-transfer condition and a successful transfer clears it, stop and document.
Power Cycle Only When Safe
Action: If allowed by department procedure and the rover is not in patient use, power cycle the rover and retry docking.
Expected outcome: The rover boots normally, recognizes the dock, and begins the expected transfer sequence.
Why it matters: Temporary communication or software lockup conditions may clear after a controlled restart.
If the issue clears after restart and the unit passes functional checks, document and return to service only if performance is normal.
Compare with a Known-Good Rover or Dock
Action: If possible, dock a known-good rover at the suspected docking station, or dock the suspect rover at a known-good station.
Expected outcome: The failure follows either the rover or the docking station.
Why it matters: This prevents unnecessary repair of the wrong component.
If the problem follows the rover, remove the rover from service. If the problem stays with the dock, remove the docking station from service.
Inspect for Leaks, Odor, Unusual Noise, or Heat
Action: During safe testing, observe for fluid leaks, abnormal pump noise, unusual vibration, burning smell, overheating, or repeated transfer aborts.
Expected outcome: No abnormal physical condition is present.
Why it matters: Waste transfer involves fluid movement and powered components. Leaks, odor, heat, or abnormal sounds suggest the unit should not remain in service.
If any unsafe condition is found, stop troubleshooting and remove the device from service.
Perform a Final Functional Check
Action: After any correction, verify the rover docks properly, the dock is recognized, waste transfer starts, transfer completes, and no new alarms or faults appear.
Expected outcome: Docking and waste transfer operate normally from start to finish.
Why it matters: Clearing the initial symptom is not enough. The system must complete the full transfer process safely before return to service.
If the Problem Persists
If the rover still will not dock, recognize the docking station, begin waste transfer, or complete waste transfer after external checks, common external causes have been ruled out. The issue is likely internal to the rover, docking interface, transfer system, sensor circuit, control electronics, or docking station assembly.
The device should be removed from service, labeled Out of Service, and sent for repair or bench evaluation.
Do not continue repeated docking attempts if the unit shows leaks, abnormal noise, overheating, electrical odor, repeated transfer faults, or unreliable dock recognition. Knowing when to stop is proper troubleshooting.
Clinical Use Tip
Do not troubleshoot rover docking or waste transfer during an active surgical procedure unless there is an immediate safety need and clinical staff have already moved suction support to a safe alternative. Waste handling issues can create exposure and contamination risks, so verify the device is safe, contained, and out of patient care before testing.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"OR staff reported the Stryker Neptune 3 rover would dock but would not begin waste transfer at the docking station."
Cause
What was observed during troubleshooting.
Example:
"Found the rover was not fully seating due to debris and dried residue on the external docking interface."
Resolution
What action was taken.
Example:
"Cleaned the external docking interface, confirmed proper docking alignment, completed a successful waste transfer cycle, and returned the unit to service."
Helpful Details to Include (If Known)
- Docking station outlet tested
- Docking station power indicator status
- Rover display message or fault shown
- Whether the rover physically docked
- Whether the dock recognized the rover
- Whether waste transfer started or stopped
- Hose, drain, or transfer path condition
- Any leak, odor, noise, heat, or residue found
- Whether another rover worked at the same dock
- Whether the suspect rover worked at another dock
- Final device status
Final Thought
Neptune 3 docking and waste transfer problems should be approached logically. Start with safety, then verify power, alignment, dock condition, drain path, and whether the issue follows the rover or docking station. Do not assume an internal failure until the external setup has been ruled out. Clear CCR documentation helps show what was checked, what was found, and why the device was returned to service or escalated for repair.
That is successful troubleshooting.