Defibrillators

ZOLL X: troubleshooting and error codes

The ServiceForge knowledge base holds 2 documented symptoms for the ZOLL X, with 2 ranked causes, 0 diagnostic checks with test points and expected values, and 78 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Calibration: EtCO2

Annual calibration of end-tidal CO2 monitoring using 5% CO2 calibration gas to ensure accurate readings

Ranked causes

1. EtCO2 sensor requires annual calibration per maintenance protocol (common)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: NIBP

Annual calibration check of non-invasive blood pressure module to verify accuracy of systolic, diastolic and mean pressure readings

Ranked causes

1. NIBP module requires annual calibration check per maintenance protocol (common)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Error codes

Code	Meaning	Trigger	Severity
`ALARM SILENCE SHORT`	Alarm Silence/Reset key is stuck.	Key stuck in pressed position	warning
`BLUETOOTH PHONE UNAVAILABLE`	Unable to establish Wide Area Network connection; no Bluetooth phones detected.	Device cannot detect paired Bluetooth phones	warning
`CELLULAR CONNECT FAILURE`	Unable to establish Wide Area Network connection via cellular.	Cellular modem or Bluetooth phone connection attempt failed	warning
`CHECK COMM CONFIGURATION`	Configuration error prevented successful communication.	Communication setup contains invalid parameters	warning
`CO2 BAROMETRIC OUT OF RANGE`	Altitude is too high for CO2 module.	Device altitude exceeds module operating range	error
`CO2 CAL FAILURE`	CO2 module calibration failed.	Calibration procedure unsuccessful	error
`CO2 CAL REMINDER`	CO2 module calibration reminder.	Calibration due soon	info
`CO2 CAL REQUIRED`	CO2 module calibration is due.	Calibration interval expired	warning
`CO2 CHECK FLOW`	CO2 module exhaust port is blocked.	Pressure sensing indicates blocked exhaust	error
`CO2 COM ERROR CODE`	Communication failure with CO2 module.	Data transmission error detected	error
`CO2 DEVICE FAILURE`	CO2 module malfunction or device failure.	Module self-test or hardware detection failure	error
`CO2 GAS INPUT OCCLUSION`	CO2 inlet is blocked.	Inlet pressure or flow sensing indicates blockage	error
`CO2 MAINTENANCE REMINDER`	Periodic CO2 module maintenance reminder.	Maintenance interval approaching	info
`CO2 MAINTENANCE REQUIRED`	Periodic CO2 module maintenance is due.	Maintenance interval expired	warning
`CO2 NO FILTERLINE`	No FilterLine is detected by CO2 module.	Module cannot detect FilterLine connection	error
`DEFIB CAP LEAKAGE`	Defibrillator capacitor bank cannot hold a charge.	Capacitor charge decay detected during self-test	critical
`DEFIB CHARGE ERROR`	Over voltage was detected during defibrillator charging.	Charging voltage exceeded safe limits	critical
`DEFIB CHARGE TIMEOUT FAIL`	Battery did not produce enough current to charge capacitor.	Capacitor failed to charge within timeout period	critical
`DEFIB DEVICE FAILURE`	Defibrillator device failure detected.	Self-test energy charge, discharge, or delivery failed	critical
`DEFIB DISCHARGE TEMP`	Device is in hot environment or discharge circuit always on.	Temperature threshold exceeded during discharge	error
`DEFIB FATAL CHARGE ERROR`	Fatal defibrillator charging error.	Charging operation failed catastrophically	critical
`DEFIB FIRE FAILURE`	High or low impedance detected during defibrillator discharge.	Pad impedance out of safe range during therapy delivery	critical
`DEFIB LOW BATTERY`	Battery is too low to charge defibrillator.	Battery voltage below defibrillator charging threshold	error
`DEFIB NO ENERGY DELIVERED`	High impedance; no defibrillator energy was delivered.	No energy detected at output during therapy	critical
`DEFIB PACER DEVICE FAILURE`	Defibrillator/pacer board failure detected.	Board error, self-test or communication failure	critical
`DEFIB PHASE FAILURE`	Phase I or phase II defibrillator waveform dropout.	Waveform generation interrupted during discharge	critical
`DEFIB USING DEFAULT CALIBRATION`	Defibrillator calibration data lost; using default values.	Stored calibration data corrupted or missing	error
`ECG DEVICE FAILURE`	ECG hardware issue detected.	ECG software detected problem with ECG data	error
`FP DEFIB CHARGE SHORT`	Defibrillator charge keys are stuck on front panel.	Key stuck in pressed position	warning
`FP DEFIB ENERGY DOWN SHORT`	Defib energy Select Down (Decrease) key is stuck on front panel.	Key stuck in pressed position	warning
`FP DEFIB ENERGY UP SHORT`	Defib energy Select Up (Increase) key is stuck on front panel.	Key stuck in pressed position	warning
`FP DEFIB FIRE SHORT`	Front panel key or button is stuck.	Key or button stuck in pressed position	warning
`HW SHUTDOWN`	Voltage threshold exceeded minimum working threshold; device shutting down.	Battery voltage dropped below minimum threshold	critical
`IBP DEVICE FAILURE`	IBP hardware issue detected.	IBP software detected problem with IBP data	error
`IBP PROBE1/PROBE2/PROBE3 CIRCUIT FAILURE`	Unsupported probe inserted or circuit problem detected.	Probe connection or circuit failure detected	error
`IBP PROBE1/PROBE2/PROBE3 SHORTED`	Invasive Blood Pressure probe is shorted.	A/D converter value indicates probe short circuit	error
`NAMESERVICE FAILURE`	Reports server hostname could not be resolved via DNS.	DNS lookup failed for server hostname	warning
`NAV PAD DOWN SHORT`	Down/Counterclockwise Navigation key is stuck.	Key stuck in pressed position	warning
`NAV PAD SELECT SHORT`	Select Navigation key is stuck.	Key stuck in pressed position	warning
`NAV PAD UP SHORT`	Up/Clockwise Navigation key is stuck.	Key stuck in pressed position	warning
`NIBP AIR LEAK`	Major air leak detected or target pressure not reached.	Pressure fails to reach target during inflation	error
`NIBP ARTIFACT`	Unable to determine blood pressure due to artifact.	Signal quality insufficient for measurement	warning
`NIBP COMMUNICATION FAILURE`	Communication failure with NIBP module.	Data transmission error with NIBP module	error
`NIBP EQUIPMENT CHECK`	Device is unable to obtain a blood pressure reading.	NIBP measurement failed	warning
`NIBP KINKED HOSE`	Cuff inflation was too rapid; tubing may be kinked or obstructed.	Inflation rate exceeds expected parameters	warning
`NIBP LOW VOLTAGE`	Insufficient voltage supplied to NIBP module.	Module voltage below operating threshold	error
`NIBP MAX PRESSURE EXCEEDED`	NIBP pressure limit exceeded.	Measured pressure exceeds safe maximum	error
`NIBP MONITORING FAILURE`	NIBP module failure or transducer misalignment detected.	Module failure reported or measurement fault detected	error
`NIBP NEONATAL DETECTED`	Device thinks neonate cuff is connected; tubing may be damaged.	Module detected neonate cuff impedance signature	warning
`NIBP TEMP OUT OF RANGE`	NIBP module temperature is out of specified operating range.	Module temperature exceeds limits	warning
`NIBP WEAK PULSE`	Too few pulses detected during blood pressure reading attempt.	Pulse signal below threshold during measurement	warning
`PACER CURRENT FAULT`	Lack of pacer output current.	Pacer current output below threshold	critical
`PACER DEVICE FAILURE`	Generation of pacer pulse failed.	Pacer pulse generation unsuccessful	critical
`PRINTER OFFLINE`	Printer module is off-line.	Printer module not responding or not powered	warning
`PRINTER OUT OF PAPER`	Printer out of paper or paper sensor failure.	No paper detected or paper sensor malfunction	warning
`PRINTER PLATEN OPEN`	Printer platen door is open or micro switch failure.	Printer door open or micro switch malfunction detected	warning
`PS DEFIB CHARGE SHORT`	Paddle set defibrillator charge keys are stuck.	Key stuck in pressed position	warning
`PS DEFIB ENERGY DOWN`	Paddle set energy down keys are stuck.	Key stuck in pressed position	warning
`PS DEFIB ENERGY DOWN SHORT`	Paddle set energy down select button is stuck.	Button stuck in pressed position	warning
`PS DEFIB ENERGY UP`	Paddle set energy up keys are stuck.	Key stuck in pressed position	warning
`PS DEFIB FIRE SHORT`	Paddle set fire keys are stuck.	Key stuck in pressed position	warning
`PS DEFIB RECORDER SHORT`	Paddle set recorder keys are stuck.	Key stuck in pressed position	warning
`QUICK ACCESS SW 1 TO SW 7 SHORT`	One of the quick access keys (1-7) is stuck.	Key stuck in pressed position	warning
`SCREEN CYCLE SHORT`	Display/home key is stuck.	Key stuck in pressed position	warning
`SERVER AUTHENTICATION FAILED`	Reports server rejected connection request from device.	Server authentication validation failed	warning
`SERVER UNREACHABLE`	WAN connection established but reports server unreachable or connection lost.	Server connection failed despite WAN availability	warning
`SERVICE ERROR <CODE>`	Error occurred while communicating with remote server.	Server returned error during communication	error
`SNAPSHOT SHORT`	Snapshot key is stuck.	Key stuck in pressed position	warning
`SPO2 COM ERROR CODE`	SpO2 module communication error.	Data transmission failure with SpO2 module	error
`SPO2 DEVICE FAILURE`	SpO2 communication failure or device malfunction.	Module not responding or self-test failed	error
`SPO2 SENSOR FAILURE`	SpO2 sensor defective or error detected.	Sensor self-test or signal validation failed	error
`SPO2 UNKNOWN RECOVERY NUM`	SpO2 sensor recovery error.	Sensor recovery procedure failed	error
`SW SHUTDOWN WARNING`	Battery has reached software shutdown capacity threshold.	Battery voltage dropped to shutdown threshold	critical
`TEMP1 OR TEMP2 CIRCUIT FAILURE`	Temperature probe circuit failure; A/D converter out of range.	A/D converter reading exceeds valid range	error
`TEMP DEVICE FAILURE`	Temperature hardware issue detected.	Temperature software detected problem with temperature data	error
`TEMP PROBE1 OR PROBE2 SHORTED`	Temperature probe is shorted.	A/D converter value indicates probe short circuit	error
`TRANSMISSION FAILED`	Communication operation failed; persists until new operation started.	Wireless transmission attempt failed	warning
`WAN CONNECTION UNAVAILABLE`	Unable to establish Wide Area Network connection.	WAN connection attempt failed	warning

Likely causes and actions for each code are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.