Patient monitors · Passport family

Mindray Passport V: troubleshooting and error codes

The ServiceForge knowledge base holds 115 documented symptoms for the Mindray Passport V, with 161 ranked causes, 33 diagnostic checks with test points and expected values, and 9 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

CHK Lead message displayed

Monitor displays 'CHK Lead' warning; indicates elevated electrode impedance

Ranked causes

1. Increased impedance caused by chest hair under electrodes (common)
2. Dried electrode gel (common)
3. Electrode off or lead off (occasional)
4. Cracked lead wires (rare)
5. Poor skin prep (common)

First check

Inspect electrode sites for chest hair

Test point: Chest wall under electrodes
Expected: No visible chest hair

2 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Damped invasive waveform

IBP waveform appears flattened, rounded, or with reduced amplitude indicating poor signal quality

Ranked causes

1. Air bubbles in tubing (common)
2. Kinked catheter (common)
3. Catheter against wall of blood vessel (occasional)
4. Blood in tubing (occasional)
5. Catheter partially occluded with clot (occasional)

First check

Inspect tubing for air bubbles

Test point: Entire pressure line from transducer to catheter
Expected: No visible air bubbles

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

IBP not displayed or no IBP waveform

Invasive blood pressure signal absent from monitor display; no waveform or numerical values shown

Ranked causes

1. Improper setup (common)
2. Cable not plugged in (common)
3. Transducer not connected (common)
4. Stopcock turned improperly (occasional)
5. Transducer not zeroed (common)

First check

Verify IBP display enabled

Test point: Monitor setup menu
Expected: IBP channel enabled

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Baseline wander in ECG patient safety

ECG baseline drifts and fluctuates during waveform display

Ranked causes

1. Patient moving excessively (common)
2. Patient respiration or dry/loose electrodes (common)
3. Static buildup around patient (occasional)
4. ECG filter set to incorrect mode (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Excessive alarms for heart rate or lead fault patient safety

Frequent false alarms triggered for heart rate or lead disconnection

Ranked causes

1. Electrodes dry (common)
2. Alarm limits set too close to patient's normal heart rate (common)
3. R-wave wrong size (occasional)
4. Excessive patient movement or muscle tremor (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Display appears to be off

Monitor screen is dark or does not power on; no video output visible

Ranked causes

1. Mains power switch not activated (common)
2. Power cord not connected to AC outlet (common)
3. Battery pack drained (portable operation) (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

ECG signal invalid patient safety

Monitor does not recognize valid ECG signal from electrode connections

Ranked causes

1. Connections not tight or properly secured (common)
2. Electrodes dry or loose (common)
3. Cable or lead wires damaged (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

False apnea alarm patient safety

System triggers apnea alarm when patient is actually breathing normally

Ranked causes

1. Apnea delay may be improperly set (common)
2. Patient may be having frequent episodes of CVA (occasional)
3. Scale size may be too low (common)

First check

Review apnea delay setting

Test point: Monitor setup menu
Expected: Appropriate apnea delay for patient type

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Gas Module air leak detected caution

System displays 'GM: Air Leak' message; pneumatic leak detected or sample line not attached

Ranked causes

1. Pneumatic leak in system (common)
2. Sample line not attached or disconnected (occasional)
3. Gas Module on without Monitor for extended period (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No ECG waveform patient safety

ECG waveform not displayed on monitor

Ranked causes

1. Gain set too low (occasional)
2. Lead wires and patient cable not fully or properly inserted (common)
3. Cable or lead wires damaged (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No respiration waveform or rate displayed patient safety

Respiration signal absent from monitor display; no numerical rate shown

Ranked causes

1. Respiration turned off (common)
2. Patient connected using ESIS choke cable (occasional)
3. Cable not connected (common)

First check

Verify respiration is enabled

Test point: Monitor settings menu
Expected: Respiration enabled; 'Off' not displayed in Resp window

1 more check with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Noisy ECG traces patient safety

ECG waveform contains noise and artifacts

Ranked causes

1. Loose or dry electrodes (common)
2. Defective electrode wires (occasional)
3. Patient cable routed too close to electrical devices (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Remote view LAN connectivity issue

Patient monitor connected to LAN but cannot view other patients in Remote View window

Ranked causes

1. Incorrect LAN cable connection or cable too long (common)
2. Excessive concurrent remote view requests (occasional)
3. Incorrect IP address configuration or conflict (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Respiration high impedance

System detects abnormally high electrode impedance in respiration circuit

Ranked causes

1. Connections not tight and/or properly secured (common)
2. Electrodes dry or loose (common)
3. Cable or lead wires damaged (occasional)

First check

Inspect all connections

Test point: Electrode to lead, lead to cable, cable to monitor
Expected: All connectors firmly seated

1 more check with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Trends not printing

Trend data not output to printer when Print Trend requested

Ranked causes

1. Print Trend button not pressed (common)
2. No trends available to print (occasional)
3. Printer out of paper (common)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Alarm tone disabled patient safety

Alarm audible alert not sounding; alarm silence feature active or volume reduced

Ranked causes

1. Alarm silence key pressed (common)
2. Beep volume set too low (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CVA message displayed

Monitor displays CVA (Cardiopulmonary variability/artifact) message indicating respiration-cardiac interference

Ranked causes

1. Can be caused by shallow breathing or an apnea event (occasional)
2. Patient HR and respiratory rate identical (rare)

First check

Observe patient respiratory pattern

Test point: Patient bedside observation
Expected: Normal steady breathing pattern

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

ECG artifact patient safety

ECG waveform contains distortion and artifact

Ranked causes

1. Electrical interference from auxiliary devices (common)
2. Patient movement (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

ECG noise patient safety

ECG signal contains noise and interference

Ranked causes

1. External interference (occasional)
2. Patient movement (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Gas Module sampling line occlusion caution

System displays 'GM: Occlusion' message; obstruction detected in sampling line or water trap bottle full

Ranked causes

1. Water trap bottle full or sampling line blocked (common)
2. Exhaust line blocked (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

No trace for desired parameter

Desired waveform or parameter trace not displayed on monitor screen

Ranked causes

1. Improper transducer or cable attachment (common)
2. Faulty transducer or cable (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Patient information not displayed patient safety

Patient demographics or data not visible on monitor screen after entry

Ranked causes

1. No patient data entered (common)
2. Done button not selected after data entry (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Respiration waveform too small

Respiratory signal displayed at insufficient amplitude; difficult to discern on monitor

Ranked causes

1. Patient breathing is shallow or patient is turned on side (common)
2. Scale set inappropriately (common)

First check

Assess patient position and breathing depth

Test point: Patient observation
Expected: Patient upright with normal breathing pattern

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Abnormally high or low IBP readings patient safety

Blood pressure values displayed are significantly elevated or reduced compared to expected patient values

Ranked causes

1. Transducer too high or too low (common)

First check

Verify transducer level relative to patient heart

Test point: Transducer height
Expected: Transducer at same level as patient right atrium

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

Calibration: CO2 module

Verify CO2 measurement accuracy; recommended annually or when readings appear suspicious

Ranked causes

1. CO2 module calibration drift (unknown)

First check

Warm CO2 module

Test point: Module warm-up time
Expected: Minimum 20 minutes at power-on

4 more checks with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: ECG channels

ECG signal inaccuracy; wave amplitude greater or smaller than expected

Ranked causes

1. ECG module hardware or software problem (unknown)

First check

Compare ECG square wave amplitude to scale

Test point: Monitor screen
Expected: Difference within 5%

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

Calibration: Gas module

Verify Gas Module 3 accuracy; recommended annually or when readings appear suspicious

Ranked causes

1. Gas Module 3 calibration drift (unknown)

First check

Warm Gas Module 3

Test point: Module warm-up time
Expected: Minimum 10 minutes at power-on

4 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: IBP transducer

Verify invasive blood pressure transducer sensitivity for optimal accuracy

Ranked causes

1. IBP transducer calibration drift (unknown)

First check

Zero calibration with simulator at 0 mmHg

Test point: Module pressure connector
Expected: Zero calibration accepted

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: NIBP accuracy

NIBP pressure readings may be inaccurate

Ranked causes

1. NIBP module accuracy drift (unknown)

First check

Compare NIBP displayed pressure to manometer reference at 300 mmHg

Test point: Monitor screen vs. manometer
Expected: Difference not greater than +/-3 mmHg, +/-3 mmHg
Tools: Digital/Mercury manometer, test chamber

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

Calibration: NIBP leakage

Verify pneumatic system does not leak

Ranked causes

1. Pneumatic leak in NIBP system (unknown)

First check

Observe leakage test result message

Test point: Monitor screen prompt message area
Expected: No leakage detected; no NIBP Pneumatic Leak message

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

Calibration: NIBP transducer

Verify pressure transducer sensitivity for optimal NIBP accuracy

Ranked causes

1. NIBP transducer calibration drift (unknown)

First check

Set calibration reference pressure

Test point: Calibration menu
Expected: Reference pressure 240-260 mmHg (default 250 mmHg), 240-260 mmHg, 1 mmHg steps

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Check remote printer

Remote printer is busy, disconnected, out of paper, or has fault condition

Ranked causes

1. Remote printer operational issue (unknown)

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

CO2 15V overrange high voltage

Microstream CO2 module 15V power supply voltage is out of acceptable range

Ranked causes

1. Power supply to module is out of range (rare)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 calibration caused by measurement error

Microstream CO2 calibration failed; sensor unable to measure gas concentration accurately

Ranked causes

1. Measurement error (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 calibration caused by no gas or wrong gas concentration

Microstream CO2 calibration failed due to absent or incorrect calibration gas supply

Ranked causes

1. No gas or wrong gas concentration (common)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 calibration caused by no stable gas flow

Microstream CO2 calibration failed; gas flow rate unstable during procedure

Ranked causes

1. No stable gas flow (common)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 calibration completed successfully

CO2 module zero or span calibration procedure completed without error

Ranked causes

1. Calibration finished and successful (common)

CO2 calibration error

CO2 calibration failed; actual gas concentration differs significantly from entered value

Ranked causes

1. The actual concentration of calibration gas applied is in wide discrepancy with the concentration value entered by the user (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 check airway

Microstream CO2 module detects airway circuit error or disconnection

Ranked causes

1. Airway error (common)

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

CO2 check flow rate

Microstream CO2 module detects abnormal (high or low) sample gas flow rate

Ranked causes

1. The system has detected a high or low flow rate (common)

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

CO2 check sensor

Microstream CO2 sensor is faulty or malfunctioning; unreliable readings

Ranked causes

1. Possible faulty sensor (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 communication error

Monitor receives incorrect or corrupted response from CO2 module

Ranked causes

1. The monitor receives wrong response from CO2 module (rare)

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

CO2 communication stop

CO2 module communication has stopped; command transmission failing

Ranked causes

1. Sending out order is failed during work (rare)

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

CO2 filtering disconnected

Microstream CO2 filterline is disconnected from monitor module

Ranked causes

1. Filtering disconnected (common)

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

CO2 filterline error

DPM CO2 filterline is leaking or blocked; cannot deliver sample gas

Ranked causes

1. Filterline is leaked or blocked (common)

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

CO2 hardware error

DPM CO2 module hardware malfunction; device cannot operate

Ranked causes

1. Module has problems (rare)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 high airway pressure

DPM flux sensor measurement exceeds 790 mmHg; airway pressure abnormally elevated

Ranked causes

1. Measurement of Flux Sensor in module is higher than 790 mmHg (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 high barometric pressure

DPM detects atmospheric pressure higher than 790 mmHg; device location unsuitable

Ranked causes

1. Atmospheric pressure is too high (higher than 790 mmHg) (rare)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 initialization error

CO2 module fails to respond during startup; initialization sequence incomplete

Ranked causes

1. No response after send order during initialization (rare)

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

CO2 low airway pressure

DPM flux sensor measurement is below 400 mmHg; airway pressure abnormally low

Ranked causes

1. Measurement of Flux Sensor in module is less than 400 mmHg (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 low barometric pressure

DPM detects atmospheric pressure lower than 428 mmHg; device location unsuitable

Ranked causes

1. Atmospheric pressure is too low (lower than 428 mmHg) (rare)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 main board error

Microstream CO2 module main board malfunction detected

Ranked causes

1. Module has problems (rare)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 no water trap

DPM CO2 module detects water trap is missing or not installed

Ranked causes

1. No watertrap on CO2 module (common)

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

CO2 not ready for calibration

CO2 module unable to initialize calibration sequence; not in proper state

Ranked causes

1. Module is unable to initialize calibration (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 occlusion detected

Microstream CO2 module detects occlusion (blockage) in sample line preventing gas flow

Ranked causes

1. Sample line is blocked or kinked (common)

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

CO2 purge required

Microstream CO2 module detects blockage or kink in sample line during purge cycle

Ranked causes

1. Sample line is blocked or kinked (common)

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

CO2 replace scrubber and pump

Microstream CO2 module scrubber and pump have reached end of service life

Ranked causes

1. Module has problems (rare)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

CO2 self-test error

CO2 module fails internal self-test; software or hardware malfunction detected

Ranked causes

1. Module cannot work because of software fault, circuit error, etc. (rare)

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

CO2 sensor high temperature caution

DPM CO2 sensor temperature exceeds upper operating limit

Ranked causes

1. Temperature over ranges high limit checked by module (rare)

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

CO2 sensor low temperature caution

DPM CO2 sensor temperature is below minimum operating limit

Ranked causes

1. Temperature over ranges low limit checked by module (rare)

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

More symptoms

CO2 startup
CO2 temperature overrange
CO2 warming up
CO2 zero failed
CO2 zeroing in progress
Cooling fan failure
Excessive electrosurgical interference
Gas module agent zero error
Gas module agents uncalibrated
Gas Module cannot zero
Gas module CO2 uncalibrated
Gas module CO2 zero error
Gas Module communication error
Gas Module disconnected
Gas Module exhaust blocked
Gas module N2O uncalibrated
Gas module N2O zero error
Gas Module not ready for calibration
Gas module O2 uncalibrated
Gas module O2 zero error
Gas Module pump turned off
Gas Module sampling error during calibration
Gas Module unrecoverable error
Gas Module warming up
Gas Module zeroing error during calibration
IBP communication error
IBP communication stop
IBP initialization error
Incorrect date or time displayed
Local printer busy
Local printer communication error
Local printer door open
Local printer out of paper
Local printer report appears blank
Local printer self-test error
Local printer unable to print
Monitor log review
Muscle noise in ECG
No print on alarm
No printer selected or available
No trends displayed
Patient data missing after power cycle
Pressure overrange cannot zero
Printer buffer full
Pulsatile pressure cannot zero
Remote printer not available
Respiration communication error
Respiration communication stop
Respiration initialization error
Respiration waveform too large
Sensor off
Sensor off cannot zero
Thermal printhead overheated
Unknown anesthetic agent detected
Water trap requires replacement

55 more symptoms with ranked causes and checks are in ServiceForge. Connect ServiceForge to your AI

Error codes

Code	Meaning	Trigger	Severity
`Communication Error`	ECG module unable to send commands correctly	The ECG module communication error. The command cannot be sent correctly.	error
`Communication Stop`	ECG module communication is not operational	As the ECG module communication stops	error
`ECG Channels Checking`	ECG module is performing calibration procedure	Appears when the ECG Module is calibrating.	info
`ESU-Resp Off`	Respiration measurement disabled due to electrosurgery interference	The high frequency electrosurgery unit interference signal is detected.	warning
`Initialization Error`	System cannot establish communication with ECG module during startup	During the ECG module power-on, as the ECG module communication stops	error
`Learning`	ECG module performing arrhythmia or ST learning cycle	Displayed when a learning cycle has been requested for Arrhythmia or ST.	info
`No Arrhythmia Detection at Central`	Central station lacks arrhythmia analysis capability	Central Station does not have arrhythmia Analysis capability.	info
`Pacer Rejection On`	Pacemaker rejection filter is enabled	When Pacer Reject is set to On.	info
`Self Test Error`	ECG module unable to complete self-test during power-on	During power-on of the unit, if ECG module cannot self-test successfully	error

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.