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Asset Type
Electrocardiograph (EKG) Machine
Manufacturer
Model
What This Guide Helps With
This guide assists Clinical Engineering in troubleshooting situations where the PageWriter TC70 reports lead fail detection errors. Symptoms may include repeated “Lead Fail” messages, intermittent ECG acquisition, or no signal for specific leads. Most causes are external and related to patient electrodes, lead cables, or connector issues rather than internal device failure.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Confirm the patient is stable and, if possible, temporarily move monitoring to another functional device.
Why: Always prioritize patient monitoring over device troubleshooting.
Check Lead Placement and Skin Preparation
- Inspect all electrodes for proper placement, adhesion, and skin contact.
- Remove any electrodes that are dried out or incorrectly placed; replace with fresh electrodes.
Why: Poor skin contact is the most common cause of lead fail errors.
Inspect Lead Wires and Connectors
- Examine all ECG lead wires for breaks, kinks, or loose connectors.
- Ensure lead connectors are fully seated into the device.
- Swap with a known working lead set to rule out cable failure.
Why: Damaged or disconnected leads will trigger detection errors.
Check for Interference or Environmental Issues
- Ensure leads are not tangled with IV lines, oxygen tubing, or other electrical devices.
- Keep cables away from high-power devices or unshielded equipment that may cause noise.
Why: Electrical interference can mimic lead failures.
Restart the Device
- Power cycle the PageWriter TC70.
- Observe whether lead fail errors persist with the same lead set and electrode placement.
Why: Sometimes the device may need a reset to clear false lead fail detection.
Verify Device Settings
- Ensure lead detection sensitivity and lead configuration are correct in the settings.
- Confirm no custom lead mapping is conflicting with standard acquisition.
If the Problem Persists
External causes have been ruled out (electrodes, leads, connections, interference).
- Removed from service
- Labeled Out of Service
- Sent for bench evaluation or repair by qualified personnel
Note: Knowing when to escalate prevents unnecessary patient risk and wasted troubleshooting effort.
Clinical Use Tip
Never attempt internal repairs on an active patient.
Always ensure patient monitoring continuity before troubleshooting device errors.
Replace leads and electrodes systematically to isolate the issue safely.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
“PageWriter TC70 shows repeated lead fail detection errors; ECG signals are intermittent.”
Cause
What was observed during troubleshooting.
Example:
“Observed dried-out electrodes, one lead connector loose, and minor cable wear. Lead fail errors persisted despite proper electrode placement.”
Resolution
What action was taken.
Example:
“Replaced electrodes, reseated all leads, swapped faulty cable with known good lead set. Device returned to normal function. If errors recur, device will be removed from service for repair.”
Helpful Details to Include
- Which leads are failing (I, II, III, V1–V6)
- Electrodes’ brand and expiration date
- Cable and connector condition
- Any alarms or error codes displayed
Final Thought
Troubleshooting lead fail detection errors requires a systematic, logical approach. Prioritize patient safety, start with external checks, document all steps clearly using CCR, and escalate appropriately. Proper documentation ensures continuity and reduces unnecessary vendor repairs.
That is successful troubleshooting.