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R SERIES 30001007201310012Recalls & reported problems

Zoll Medical Corporation · Defibrillator ,MAIN, R SERIES, ALS, NELLCOR, 3/5 LD, STD ECG, AC PWR, PACE, SPO2/ETCO2/NIBP, CF/USB, DMST · Class 3

All models of R SERIES (94)

Data updated Oct 18, 2026 from official FDA records · Editorial policy

Quick summary

This Zoll R Series defibrillator is a heart monitor and defibrillator used in emergency care. Its 554 reports mostly describe the unit being unable to get readings, screens going blank, failing to power up, and problems with shocks or pacing, and most list no clinical signs in the patient. The reports include 4 deaths and 4 injuries. No recalls name this device.

AI-generated from the FDA records on this page and checked automatically against the numbers below. Read the details before relying on it.

Adverse event reports
559
Deaths reported
4
Injuries reported
4
Recalls naming it
0

Summary

The FDA's MAUDE database contains 559 adverse event reports that list this exact device (DI 00847946017613), received between Aug 24, 2015 and Sep 29, 2026 — classified as 4 deaths, 4 injuries, 551 malfunctions.

The most frequently reported specific device problem is “Unable to Obtain Readings” (120 reports).

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.

Reports received per month

Nov 2023: 4 reportsDec 2023: 0 reportsJan 2024: 10 reportsFeb 2024: 4 reportsMar 2024: 9 reportsApr 2024: 6 reportsMay 2024: 5 reportsJun 2024: 5 reportsJul 2024: 4 reportsAug 2024: 7 reportsSep 2024: 10 reportsOct 2024: 5 reportsNov 2024: 12 reportsDec 2024: 4 reportsJan 2025: 10 reportsFeb 2025: 7 reportsMar 2025: 2 reportsApr 2025: 2 reportsMay 2025: 6 reportsJun 2025: 9 reportsJul 2025: 8 reportsAug 2025: 4 reportsSep 2025: 5 reportsOct 2025: 13 reportsNov 2025: 8 reportsDec 2025: 9 reportsJan 2026: 7 reportsFeb 2026: 4 reportsMar 2026: 8 reportsApr 2026: 9 reportsMay 2026: 7 reportsJun 2026: 8 reportsJul 2026: 4 reportsAug 2026: 7 reportsSep 2026: 10 reportsOct 2026: 0 reports20242025202613
Last 36 months. The most recent month may be incomplete.

Most reported problems

Device problems

  • Unable to Obtain Readings120
  • No Display/Image98
  • Failure to Power Up95
  • Defibrillation/Stimulation Problem81
  • Pacing Problem41
  • Failure to Deliver Shock/Stimulation39
  • Failure of Device to Self-Test30
  • Unexpected Shutdown20

Patient problems

  • No Clinical Signs, Symptoms or Conditions411
  • No Patient Involvement93
  • Insufficient Information35
  • No Information9
  • No Consequences Or Impact To Patient7
  • Burn(s)1
  • Cardiac Arrest1
  • Electric Shock1

Recent adverse event reports

The 25 most recent of 559 reports, in the reporter's own words as published by the FDA.

  • MalfunctionSep 29, 2026Failure to Power Up

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50934371 ↗
  • MalfunctionSep 28, 2026No Display/Image

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE POWERED ON WITHOUT DISPLAY.COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50914986 ↗
  • MalfunctionSep 21, 2026Failure of Device to Self-Test

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE FAILED SELF TEST.COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50839112 ↗
  • MalfunctionSep 17, 2026Failure to Power Up

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE WOULD NOT POWER UP. COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50804398 ↗
  • MalfunctionSep 10, 2026No Display/Image

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50714028 ↗
  • MalfunctionSep 8, 2026Defibrillation/Stimulation Problem

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50669966 ↗
  • MalfunctionSep 8, 2026Failure of Device to Self-Test

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE FAILED SELF TEST.COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50669667 ↗
  • MalfunctionSep 4, 2026Failure of Device to Self-Test

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50612514 ↗
  • MalfunctionSep 3, 2026Unable to Obtain Readings

    COMPLAINANT ALLEGED WHILE ATTEMPTING TO MONITOR A PATIENT (AGE & GENDER UNKNOWN), THE DEVICE DISPLAYED "ECG DISABLED" AND "ECG FAULT 5" MESSAGES. COMPLAINANT INDICATED THAT THERE WAS NO ADVERSE EFFECT TO THE PATIENT DUE TO THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50592058 ↗
  • MalfunctionSep 1, 2026Failure to Power Up

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE WAS UNABLE TO COMPLETE BOOT-SEQUENCE.COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50544021 ↗
  • MalfunctionAug 28, 2026Pacing Problem

    COMPLAINANT ALLEGED THAT DURING A ROUTINE SHIFT CHECK BY A CLINICIAN, THE DEVICE DISPLAYED A "PACER FAULT 122" MESSAGE.COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50497861 ↗
  • MalfunctionAug 24, 2026No Display/Image

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50412496 ↗
  • MalfunctionAug 24, 2026Inappropriate/Inadequate Shock/Stimulation

    COMPLAINANT ALLEGED THAT WHILE ATTEMPTING TO TREAT A PATIENT (AGE & GENDER UNKNOWN), NURSE ACCIDENTLY RAN SHOCK TEST TO A CONSCIOUS PATIENT.COMPLAINANT INDICATED THAT THERE WAS NO ADVERSE EFFECT TO THE PATIENT DUE TO THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50406391 ↗
  • MalfunctionAug 20, 2026Pacing Problem

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE DISPLAYED A "PACER DISABLED" MESSAGE. COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50345655 ↗
  • MalfunctionAug 18, 2026No Display/Image

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50305801 ↗
  • MalfunctionAug 12, 2026Unable to Obtain Readings

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE WAS UNABLE TO OBTAIN AN ECG SIGNAL VIA ELECTRODE PADS.COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50222440 ↗
  • MalfunctionAug 4, 2026Failure to Power Up

    COMPLAINANT ALLEGED THAT DURING FUNCTIONAL TESTING, THE DEVICE WOULD NOT POWER UP. COMPLAINANT DID NOT INDICATE THAT THERE WAS ANY PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50133066 ↗
  • MalfunctionJul 27, 2026Failure of Device to Self-Test

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50035198 ↗
  • MalfunctionJul 21, 2026Unable to Obtain Readings

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25894210 ↗
  • MalfunctionJul 20, 2026Failure to Power Up

    COMPLAINANT ALLEGED THAT DURING A ROUTINE SHIFT CHECK BY A CLINICIAN, THE DEVICE WOULD NOT POWER UP. COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25874514 ↗
  • MalfunctionJul 20, 2026No Display/Image

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE'S SCREEN TURNED COMPLETELY WHITE AND WAS ILLEGIBLE. COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25870240 ↗
  • MalfunctionJun 29, 2026Unexpected Shutdown

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE INAPPROPRIATELY SHUT DOWN. COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25653305 ↗
  • MalfunctionJun 26, 2026Failure to Power Up

    COMPLAINANT ALLEGED THAT DURING BIOMED TESTING, THE DEVICE WOULD NOT POWER UP. COMPLAINANT INDICATED THAT THERE WAS NO PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25635332 ↗
  • MalfunctionJun 24, 2026Use of Device Problem

    COMPLAINANT ALLEGED THAT DURING FUNCTIONAL TESTING, THE DEVICE DID NOT RESPOND TO THE FRONT PANEL CONTROLS. COMPLAINANT DID NOT INDICATE THAT THERE WAS ANY PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25608826 ↗
  • MalfunctionJun 23, 2026Activation Problem

    COMPLAINANT ALLEGED THAT DURING FUNCTIONAL TESTING, THE DEVICE DID NOT RESPOND TO THE FRONT PANEL CONTROLS. COMPLAINANT DID NOT INDICATE THAT THERE WAS ANY PATIENT INVOLVEMENT IN THE REPORTED MALFUNCTION.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25598213 ↗

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Sources and updates

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