On this page
Asset Type
Manufacturer
Model
What This Guide Helps With
This guide addresses the LOW BATTERY alarm indicating less than 2 minutes of remaining power, placing the ventilator at immediate risk of shutdown and loss of ventilation support.
Step-by-Step Troubleshooting
1. Ensure Patient Safety First
- Confirm the patient is being ventilated adequately
- Prepare for manual ventilation (BVM) if needed
- Transfer to a backup ventilator if power loss is imminent
2. Verify the Reported Alarm and Behavior
- Confirm audible and visual LOW BATTERY alarm
- Check battery indicator is critically low
- Verify ventilator is operating without AC power
3. Check AC Power Source (Most Common Cause)
- Ensure power cord is fully plugged into outlet and ventilator
- Test outlet using a known-good device
- Confirm use of a hospital-grade outlet
4. Check AC Power Cord and Connections
- Inspect for loose or partially connected power cord
- Check for damage or bent prongs
- Reseat all connections firmly
5. Check AC Power Distribution (Power Strips / Equipment Towers)
- Inspect power strips, boom outlets, or tower connections
- Ensure switches are ON and breakers are not tripped
- Try a different verified outlet
6. Confirm Battery Charging Behavior
- Observe battery charging indicator after AC is restored
- Ensure alarm clears with stable AC connection
7. Stop if Resolved
- Return ventilator to service if alarm clears
- Continue monitoring battery charging status
If the Problem Persists
If the LOW BATTERY alarm continues despite confirmed AC power, external power sources and connections have been ruled out. This indicates likely internal battery failure or charging circuit issue.
- Remove the ventilator from service
- Label as Out of Service
- Send for repair or bench evaluation
Clinical Use Tip
Never troubleshoot a ventilator on an active patient. Always move the patient to a backup ventilator or secure ventilation method before addressing power issues.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Ventilator alarming LOW BATTERY with less than 2 minutes remaining; unit operating on battery."
Cause
What was observed during troubleshooting.
Example:
"Loss of AC power due to unplugged power cord or failed outlet; alternatively battery/charging failure when AC confirmed."
Resolution
What action was taken.
Example:
"Reseated power cord, verified outlet functionality, restored AC power, and confirmed battery charging. Removed from service when issue persisted."
Helpful Details to Include (If Known)
- Alarm behavior
- Accessories swapped
- Power behavior
- Environmental factors
- Indicator lights
- Final device status
Final Thought
LOW BATTERY alarms are time-critical and indicate imminent power loss. Always prioritize patient safety, confirm external power sources immediately, and escalate quickly if power cannot be restored.
That is successful troubleshooting.