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What This Guide Helps With
This guide addresses situations where the GE Carestation 600 Series fails the pre-use checkout procedure, including:
- Incomplete or failed self-tests
- Alarms during checkout (e.g., leaks, sensor errors)
- Inability to pass system checks before patient use
The focus is on logical, external checks first—verifying connections, consumables, and simple system settings—before escalating to repair.
Step-by-Step Troubleshooting
Ensure Machine is Properly Powered
- Confirm the machine is connected to a verified hospital power outlet.
- Check that circuit breakers are on and that the machine shows normal startup sequence.
- Why: Pre-use checkout may fail if the machine is underpowered or voltage fluctuates.
Check Gas Supply Lines
- Confirm oxygen, nitrous oxide, and air cylinders or pipeline connections are secure.
- Verify adequate pressure at each supply source.
- Why: Low or disconnected gas supply can trigger checkout failures.
Inspect Breathing Circuit and Consumables
- Check for leaks, loose connections, or damaged breathing circuits, hoses, and reservoirs.
- Ensure CO₂ absorber is correctly seated and not expired.
- Confirm ventilator circuit is fully assembled.
- Why: Leak detection is a common reason for pre-use checkout failure.
Verify Sensors and Monitors
- Confirm all patient monitoring cables, flow sensors, and O₂ sensors are properly connected.
- Check for sensor damage or obstruction.
- Why: Checkout will fail if vital sensors are missing, disconnected, or malfunctioning.
Run Self-Test After Reset
- Power cycle the machine.
- Perform a manual reset or initialize the self-test routine per standard protocol.
- Why: Temporary software glitches or incomplete boot sequences can cause false failures.
Check Alarms and Error Messages
- Note any error codes displayed.
- Consult the machine’s quick reference guide for specific external troubleshooting recommendations.
- Why: Some codes indicate simple fixes (e.g., blocked scavenger line, sensor misalignment).
If the Problem Persists
Common external issues have been ruled out. The machine should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench evaluation
Knowing when to stop is proper troubleshooting and ensures patient safety.
Clinical Use Tip
Do not attempt patient ventilation on a machine that fails pre-use checkout.
Move the patient to another verified anesthesia machine or ventilator before further troubleshooting.
Troubleshoot only when the machine is disconnected from the patient.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
“Pre-use checkout fails with leak and sensor errors.”
Cause
What was observed during troubleshooting.
Example:
Observed loose O₂ sensor and a misaligned breathing circuit during troubleshooting.
Resolution
What action was taken.
Example:
Re-seated sensor and circuit connections; retested self-check. If failure persists, machine labeled Out of Service for repair.
Helpful Details to Include
- Outlet tested
- Gas cylinder/pipeline pressures checked
- Circuit/CO₂ absorber inspected
- Sensor connections verified
- Alarms and error codes documented
- Final machine status before removing from service
Final Thought
Proper troubleshooting prioritizes patient safety, ensures external, easy-to-fix issues are addressed first, and avoids unnecessary internal repair attempts. Accurate documentation supports maintenance tracking and reduces downtime.
That is successful troubleshooting.