Getinge Servo-u Ventilator

Asset Type

Ventilator

Manufacturer

Getinge

Model

Servo-u

What This Guide Helps With

This guide addresses situations where the Getinge Servo-u ventilator:

• Displays low battery warnings despite being plugged in
• Shows “battery not charging” messages
• Has significantly reduced battery runtime
• Fails to operate as expected during transport or power loss

The focus is on logical, external power and environmental checks first before assuming internal battery failure.

Step-by-Step Troubleshooting

1. Ensure the Patient Is Safe First

• Confirm the patient is stable and connected to wall power.
• If evaluating runtime concerns, move the patient to another ventilator before testing battery performance.
• Battery troubleshooting should never compromise ventilation.

2. Verify AC Power Source

• Confirm the ventilator is fully plugged into a verified hospital-grade outlet.
• Test the outlet with a known-good device or plug into a different outlet.
• Check for tripped breakers or power strips (if used temporarily).

Why this matters:
If the ventilator is not receiving consistent AC power, the battery will not charge.

3. Confirm Power Cord and Connection Integrity

• Inspect the AC power cord for damage, cuts, bent prongs, or loose connections.
• Ensure the cord is fully seated at the ventilator power inlet.
• Swap with a known-good power cord if available.

A loose or damaged cord is a common and easily overlooked cause.

4. Check On-Screen Battery Status Indicators

• Review battery charge level percentage.
• Check for active battery alarms.
• Confirm the system indicates “Charging” when plugged in.

If the display does not indicate charging while confirmed on AC power, further evaluation is needed.

5. Review Alarm History

• Access the alarm/event log and look for:
• Repeated power interruption events
• Battery fault messages
• Charger-related alarms

Frequent power interruptions may explain reduced runtime due to incomplete charging cycles.

6. Inspect for Environmental Factors

• Ensure ventilation openings are not blocked.
• Check for excessive dust buildup.
• Confirm the ventilator is not placed against a wall restricting airflow.

Overheating can reduce battery life and charging efficiency.

7. Perform a Controlled Runtime Check (Bench Test Only)

• Do not perform on an actively ventilated patient.
• Fully charge the ventilator while powered off or idle.
• Disconnect from AC power.
• Measure runtime under test lung conditions.
• Compare runtime to expected performance.

Significantly reduced runtime suggests battery degradation.

8. Check for Recent Preventive Maintenance

• Verify last PM date.
• Confirm battery age.
• Review if battery replacement interval has been exceeded.

Internal batteries have a limited service life and degrade over time.

If the Problem Persists

If:

• AC power is confirmed
• Cord integrity is verified
• Outlet is functional
• Ventilator does not indicate charging
• Runtime remains significantly reduced

Then common external causes have been ruled out.

The issue is likely:

• Internal battery pack degradation
• Internal charger circuit issue
• Power supply module fault

• Remove the ventilator from service
• Label it Out of Service
• Send for qualified bench evaluation or authorized repair

Knowing when to stop prevents unnecessary risk and improper internal access.

Clinical Use Tip

Never troubleshoot internal battery concerns while the ventilator is supporting a patient.

If battery performance is questionable, transfer the patient to another ventilator before further testing.

Patient ventilation always takes priority over equipment evaluation.

Work Order Documentation (CCR Method)

CCR = Complaint, Cause, Resolution

Complaint

What was reported by the clinical staff.

Example:
“Ventilator displayed low battery alarm and powered down during transport despite being plugged in earlier.”

Cause

What was observed during troubleshooting.

Example:
“Unit confirmed receiving AC power. Power cord and outlet verified functional. Battery indicated 100% but runtime test lasted only 8 minutes, indicating degraded internal battery.”

Resolution

What action was taken.

Example:
“Ventilator removed from service. Labeled Out of Service. Sent to manufacturer-authorized repair for battery replacement and charger system evaluation.”

Helpful Details to Include

• Outlet tested and confirmed functional
• Power cord swapped
• Charging indicator status observed
• Alarm history reviewed
• Runtime test duration recorded
• Last PM date
• Battery age (if known)
• Final device status

Final Thought

Effective troubleshooting begins with simple external verification before assuming internal failure. Confirming power delivery, reviewing alarms, and performing controlled testing protects both the patient and the device. Recognizing battery end-of-life and escalating appropriately is responsible Clinical Engineering practice. Thorough CCR documentation ensures clarity and continuity of care.

That is successful troubleshooting.