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What This Guide Helps With
Use this guide when the SURDIAL X has no power, stops during startup, or does not reach a ready condition after basic external checks.
Step-by-Step Troubleshooting
1. Protect the Patient and Maintain Continuity of Care
Do not troubleshoot a dialysis machine while a patient depends on it if power or startup is unreliable. If treatment is underway, follow the facility's clinical procedure for safely transferring or discontinuing therapy and provide another verified dialysis machine.
Check for smoke, unusual odor, liquid intrusion, overheating, damaged power components, or other obvious hazards. Remove the machine from service immediately if any are present.
Expected outcome: The patient is protected, treatment continuity is addressed, and the machine is safe for controlled troubleshooting.
2. Confirm the Exact Startup Failure
Determine whether the machine:
- Has no display or indicators
- Powers briefly and shuts down
- Stops at a startup screen
- Reboots repeatedly
- Displays an alarm or message
- Starts but never reaches the normal ready state
Record any displayed message exactly rather than interpreting it.
Expected outcome: The exact failure point is identified and can be reproduced without a patient connected.
3. Verify the AC Power Source
Confirm the power cord is fully seated and visually inspect the cord, plug, strain relief, and accessible inlet for damage.
Test the wall receptacle using approved test equipment or another known-good method permitted by facility policy. Avoid relying only on the fact that another nearby outlet appears to work.
If the unit is connected through an approved branch-power arrangement, verify that arrangement has not been switched off or interrupted.
Expected outcome: A verified AC source is available and the external power path is intact. If normal startup now completes, troubleshooting can stop after final verification.
4. Check External Power Controls and Connections
Verify the machine's normal operator-accessible power switch or controls are correctly positioned.
Inspect accessible external connectors that are required for normal startup. Look for partially seated plugs, bent connector shells, contamination, fluid exposure, or cables being pulled tight.
Do not open covers or bypass protective interlocks.
Expected outcome: Required external connections are secure and no visible external defect is interfering with startup.
5. Remove Nonessential External Accessories
With the machine safely shut down, disconnect nonessential external peripherals or communication accessories that can be removed without changing the dialysis fluid path or bypassing required safety systems.
Restart the machine using the normal startup procedure.
Expected outcome: The machine completes startup with only required components connected. If an external accessory was preventing startup, isolate that accessory from use and document the finding.
6. Evaluate the Environment
Confirm the machine is not exposed to:
- Obstructed ventilation
- Excessive heat or cold
- Standing water or recent fluid spill
- Condensation
- Damaged power infrastructure
- Recent electrical outage or power-quality event
Allow environmental conditions to return to an acceptable operating state before retesting when appropriate.
Expected outcome: No external environmental condition is preventing reliable startup.
7. Perform a Controlled Restart
If no hazard is present, shut the machine down normally, allow it to fully power off, and restart it once.
Do not repeatedly cycle power in an attempt to force the machine past a persistent startup fault.
Observe whether the same failure occurs at the same point.
Expected outcome: The SURDIAL X reaches its normal ready state without unexpected shutdown, restart, or persistent startup fault. If successful, continue to final verification.
8. Perform Final Functional Verification
Before returning the machine to service, confirm:
- Normal startup completes
- Displays and controls respond
- Expected self-checks complete
- Required alarms and indicators are available
- No abnormal sound, odor, heat, or message remains
- Applicable pre-treatment machine checks can be completed
Use approved manufacturer documentation and test equipment for any required return-to-service testing.
Expected outcome: The machine starts reliably and completes required verification. Troubleshooting can stop and the unit may be returned to service according to facility policy.
If the Problem Persists
If verified AC power, external connections, accessories, environmental conditions, and a controlled restart do not restore reliable startup, common external causes have been ruled out.
The remaining cause may involve an internal power, control, sensing, interlock, software, or other service-level condition. Do not continue by opening assemblies or bypassing startup protections unless specifically authorized and trained under approved service documentation.
The device should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench evaluation
- Evaluated using appropriate Nipro documentation and approved test equipment
- Repaired or configured only by qualified personnel
Complete applicable operational and safety verification before returning the machine to clinical use. Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Never begin or continue dialysis on a machine that has an intermittent startup, reboot, or unexplained power problem.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Dialysis staff reported the Nipro SURDIAL X would power on but would not complete startup."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found the machine was connected to a receptacle that did not provide reliable AC power."
Resolution
What action was taken.
Example:
"Clinical Engineering verified a functional receptacle, restarted the machine, confirmed normal startup and pre-treatment checks, and returned the unit to service."
Helpful Details to Include (If Known)
- Exact startup symptom or displayed message
- Whether the display or indicators illuminated
- AC receptacle tested
- Power cord and plug condition
- Whether the machine shut down or restarted
- External accessories connected
- Recent power interruption or liquid exposure
- Results before and after restart
- Final machine status
Final Thought
Protect the patient first, verify the external power path and basic operating conditions before suspecting an internal failure, and escalate when reliable startup cannot be demonstrated. Document the complaint, confirmed cause, corrective action, and return-to-service verification clearly.
That is successful troubleshooting.