Patient monitors · HemoSphere family

Edwards Lifesciences HemoSphere: troubleshooting and error codes

The ServiceForge knowledge base holds 32 documented symptoms for the Edwards Lifesciences HemoSphere, with 42 ranked causes, 49 diagnostic checks with test points and expected values, and 56 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Cannot export clinical data to USB device

Export Data screen accessible but data download fails or does not complete

Ranked causes

1. USB device out of space (occasional)
2. USB device not approved by Edwards (occasional)
3. USB device contains virus or malware (rare)

First check

Verify USB device has sufficient free space

Test point: USB device
Expected: Adequate space available

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

Finger cuff status light amber flashing

Pressure controller LED shows amber flashing ON/OFF pattern for connected finger cuff, indicating defective, expired, or incompatible cuff

Ranked causes

1. Defective finger cuff (occasional)
2. Expired finger cuff (occasional)
3. Non-compatible Edwards finger cuff connected (occasional)

First check

Verify cuff compatibility and condition

Test point: Pressure controller cuff status light
Expected: Amber flashing ON/OFF

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

Cannot access diagnostic export function

Unable to reach Diagnostics Export button or complete diagnostic data download

Ranked causes

1. Incorrect Super User password entered (common)
2. USB ports unavailable or non-functional (occasional)

First check

Enter Super User password

Test point: Password entry field
Expected: Password accepted; access to Diagnostics Export granted

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

Fault: StO2 FORE-SIGHT ELITE module communication error patient safety

Module disconnected or communication lost between tissue oximetry module and FORE-SIGHT ELITE oximeter module (port A or B)

Ranked causes

1. FORE-SIGHT ELITE oximeter module (FSM) physically disconnected from tissue oximetry module port (common)
2. Communication loss between tissue oximetry module and FORE-SIGHT ELITE module due to connection fault (occasional)

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

Heart reference sensor status light amber flashing

Pressure controller LED shows amber flashing ON/OFF pattern for heart reference sensor, indicating defective or non-Edwards sensor connected

Ranked causes

1. Defective heart reference sensor (occasional)
2. Non-Edwards heart reference sensor detected (occasional)

First check

Verify heart reference sensor is from Edwards

Test point: Pressure controller heart reference sensor status light
Expected: Amber flashing ON/OFF

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

Module cable connections damaged or misaligned caution

Visibly damaged cable ports on module; cables cannot insert properly; CCO cable insertion difficult or impossible

Ranked causes

1. Bent or damaged connector pins in cable port (unknown)
2. Cable incompatibility or contamination in port (occasional)

First check

Inspect all module cable ports visually

Test point: Cable connection ports on module
Expected: Ports intact with no bent pins or visible damage

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

Module housing damaged or labeling unreadable caution

Cracks, scratches, dents in module housing; labeling missing, unreadable, or damaged

Ranked causes

1. Physical damage during handling or installation (unknown)
2. Labeling degraded or removed (occasional)

First check

Inspect module housing condition

Test point: Module exterior housing
Expected: Intact housing with no cracks, scratches, or dents; housing clean

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

Module slots obstructed or damaged caution

Module slots contain debris or have visible damage to slots or cable connection points

Ranked causes

1. Accumulation of dust or debris in slots (occasional)
2. Physical damage to slot connectors or cable ports (unknown)

First check

Inspect module slots for debris

Test point: L-Tech expansion module slot and two expansion module slots
Expected: Slots clear of debris and foreign material

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

Applied part leakage current out of specification high voltage

Individual patient-connected components (CCO cable, oximetry cable, sensors, transducers) exceed leakage limits.

Ranked causes

1. Insulation failure in specific patient cable or sensor (occasional)

First check

Wrap each applied part (CCO cable, oximetry cable, sensors, transducers) individually in aluminum foil

Test point: Each component separately
Expected: Foil completely covering component with minimum 30 cm cable coverage
Tools: Aluminum foil, alligator clip leads

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

Cable damage or degradation caution

Exposed wire, splits, cracks, or stress marks visible on cables; loss of strain relief

Ranked causes

1. Physical wear or strain on cables from handling or routing (unknown)

First check

Inspect cable housing and strain relief

Test point: Cable exterior and connection points
Expected: Intact housing with visible strain relief; no exposed wires or shielding

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

Cable optical door malfunction caution

Oximetry cable optical connection door does not move freely or fails to latch properly

Ranked causes

1. Door mechanism stuck or damaged; hinges misaligned (rare)

First check

Test oximetry cable optical door movement

Test point: Optical connection enclosure door on HEMOXSC100 cable
Expected: Door moves freely without sticking; door latches securely when closed

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

Equipment leakage current out of specification high voltage

Leakage current from applied parts (catheters, cables, sensors) exceeds safe limits, posing electrical hazard to patient.

Ranked causes

1. Insulation degradation or breakdown in patient cables or connectors (occasional)

First check

Measure equipment leakage current with all modules and patient cables connected

Test point: EQP terminal to combined foil-wrapped patient connection points
Expected: Not to exceed 500 µA, 500 µA maximum
Tools: Electrical Safety Analyzer (ESA) per IEC 62353:2014

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

Finger cuff status light green flashing

Pressure controller LED shows green flashing ON/OFF, indicating finger cuff is actively monitoring

Ranked causes

1. Normal operation: finger cuff actively monitoring (common)

Finger cuff status light solid green

Pressure controller LED shows green solid ON, indicating finger cuff is connected, authenticated, and not expired

Ranked causes

1. Normal operation: compatible finger cuff connected (common)

Finger cuff status light solid off

Pressure controller LED shows no light (solid OFF) for finger cuff, indicating no cuff is connected or detected

Ranked causes

1. No finger cuff connected (common)

FORE-SIGHT ELITE oximeter module LED not responding patient safety

One or more LEDs on the FORE-SIGHT ELITE oximeter module fail to turn on or respond

Ranked causes

1. Module damaged or faulty (unknown)

First check

Observe FORE-SIGHT ELITE oximeter module LEDs

Test point: Channel 1 status, Channel 2 status, Module status LEDs
Expected: LEDs illuminate according to sensor connection and port status

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

Heart reference sensor status light solid green

Pressure controller LED shows green solid ON for heart reference sensor, indicating sensor is connected and system is ready to start measurement

Ranked causes

1. Normal operation: heart reference sensor connected (common)

Heart reference sensor status light solid off

Pressure controller LED shows no light (solid OFF) for heart reference sensor, indicating no sensor is connected or detected

Ranked causes

1. No heart reference sensor connected (common)

Housing damage visible caution

Cracks, dents, scratches, signs of falling or abuse on monitor housing or touchscreen

Ranked causes

1. Physical damage from impact or mishandling (unknown)

First check

Visually inspect housing for damage

Test point: Monitor exterior housing
Expected: Intact housing with no scratches, dents, or cracks

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

LIVE DEMO banner displayed with tissue oximetry simulator patient safety

Monitor screen shows LIVE DEMO banner when StO2 simulator connected to tissue oximetry module, indicating simulated values not from patient

Ranked causes

1. Tissue oximetry simulator connected for functional testing (common)

First check

Observe LIVE DEMO banner presence on screen during simulator testing

Test point: monitor display top banner area
Expected: LIVE DEMO banner visible across top of screen

Loose parts or foreign bodies present caution

After service or repair, loose components or debris remain inside or on the device

Ranked causes

1. Incomplete final assembly or cleanup after maintenance (occasional)

First check

Check for loose parts or foreign bodies

Test point: Interior and exterior of monitor
Expected: No loose components, debris, or foreign material present

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

Monitor rear labeling missing or unreadable

Rear center label or serial number label not present or illegible on monitor

Ranked causes

1. Label removed, damaged, or degraded from wear (occasional)

First check

Verify rear center label present

Test point: Rear center of monitor housing
Expected: Label present and clearly readable

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

Port damage or obstruction caution

Visible damage to USB, HDMI, Ethernet, COM1, Analog input, ECG input, or pressure output ports

Ranked causes

1. Physical damage to port connectors from impact or insertion (unknown)

First check

Inspect rear panel ports visually

Test point: HDMI, Ethernet, COM1, Analog inputs 1 and 2, ECG input, pressure output, equipotential stud
Expected: All ports intact with no damage, bent pins, or obstructions

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

Pressure cable LED flashing green

Pressure cable LED flashing green when sensor connected

Ranked causes

1. Pressure sensor connected but not zeroed (common)

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

Pressure cable LED off

No light on pressure cable LED indicator

Ranked causes

1. No pressure sensor or transducer connected (common)

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

Pressure cable or sensor connection defective caution

Pressure sensor or transducer cannot insert into pressure cable port; connection damaged or misaligned

Ranked causes

1. Cable port connector damaged or misaligned; sensor incompatible (unknown)

First check

Test pressure sensor or transducer insertion

Test point: Pressure sensor/transducer connection port on HEMPSC100 cable
Expected: Compatible pressure sensor inserts smoothly and seats fully; connection is secure

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

Protective earth resistance out of specification high voltage

Earth conductor resistance between grounding pin and EQP terminal exceeds safe limits, indicating potential electrical safety hazard.

Ranked causes

1. Damaged or degraded earth conductor in mains power cord (common)

First check

Measure protective earth resistance using ESA with test current 200-1000 mA

Test point: Grounding pin of power cord to EQP terminal on back panel
Expected: Not to exceed 300 mOhms, 300 mOhms maximum
Tools: Electrical Safety Analyzer (ESA) per IEC 62353:2014

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

Settings cannot be exported to USB

Export Settings button does not function or settings fail to save to USB stick

Ranked causes

1. USB stick is not approved Edwards brand or is not inserted (common)

First check

Verify USB stick is inserted and approved Edwards brand

Test point: Monitor USB port
Expected: Approved Edwards USB stick physically inserted

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

Settings import fails or pattern does not match

Imported settings do not apply or on-screen pattern verification fails during import to another monitor

Ranked causes

1. Pattern image does not match between export and import (occasional)

First check

Verify on-screen pattern matches exported image

Test point: Monitor display during import
Expected: Pattern on-screen matches photo taken during export

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

System Error Screen displayed during startup

After power-on, System Error Screen replaces the normal Startup Screen instead of showing POST status and system information

Ranked causes

1. POST detected error condition in critical hardware components (unknown)

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

System leakage current with LAN connection out of specification high voltage

When HemoSphere is networked via Ethernet, system leakage current exceeds limits, indicating electrical hazard.

Ranked causes

1. Grounding issue introduced by LAN network connection (rare)

First check

Measure equipment leakage current with LAN cable connected to hardwired Ethernet port

Test point: EQP terminal to combined foil-wrapped patient connection points with LAN attached
Expected: Not to exceed 500 µA, 500 µA maximum
Tools: Electrical Safety Analyzer (ESA) per IEC 62353:2014

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

USB stick contains virus or malware caution

USB stick is contaminated and may infect monitor when inserted

Ranked causes

1. USB stick not scanned for virus or malware before insertion (occasional)

First check

Scan USB stick with antivirus software

Test point: Computer antivirus tool
Expected: No viruses or malware detected on USB stick

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

Error codes

Code	Meaning	Trigger	Severity
`Alert: Battery Disconnected`	Previously inserted battery not detected	Battery not detected or poor connection	warning
`Alert: Low Battery`	Battery has less than 20% charge remaining or will be depleted within 8 minutes	Battery charge drops below 20% or depletion predicted within 8 minutes	warning
`Alert: Service Battery`	Internal battery fault occurred, battery cannot sustain system adequately	Internal battery fault detected	warning
`Alert: System Buzzer Inoperable`	Speaker hardware or software communication error	Speaker or buzzer malfunction detected	warning
`Alert: System LED Indicators Inoperable`	Visual alarm indicator hardware or communication error	Visual alarm indicator malfunction or communication error	warning
`Alert: System Temperature Too High`	Internal temperature reaching critically high level	Internal temperature reaches elevated threshold	warning
`Alert: Transmit Pressure Not Active`	Connection of new patient monitor pressure channel detected	New patient monitor pressure channel connected	info
`Alert: Wireless Module Failure`	Internal hardware failure in wireless module	Wireless module hardware failure detected	warning
`Battery Needs Conditioning`	Gas gauge not synced to actual battery capacity status	Battery gauge synchronization failure	warning
`Channel 1 Green LED`	Sensor connected and active on Channel 1	Valid sensor connected to Channel 1	info
`Channel 1 White LED`	No sensor connected to Channel 1	Sensor disconnected or not plugged in to Channel 1	info
`Channel 2 Green LED`	Sensor connected and active on Channel 2	Valid sensor connected to Channel 2	info
`Channel 2 White LED`	No sensor connected to Channel 2	Sensor disconnected or not plugged in to Channel 2	info
`Fault: Battery Depleted`	Battery is depleted and system will shut down in 1 minute if not plugged in	Battery depletion detected	critical
`Fault: Cable Port 1 – Communication Error`	Cable not inserted properly or connection points damaged	Cable port 1 communication failure	error
`Fault: Cable Port 1 – Hardware Failure`	Cable is not inserted properly or connection points are damaged	Cable 1 insertion failure or damaged connectors	error
`Fault: Cable Port 1 - Incompatible Software Version`	Unsuccessful software upgrade or incompatible software version in cable port 1	Software upgrade failure or version incompatibility in cable port 1	error
`Fault: Cable Port 1 – Software Failure`	Software error with cable in port 1	Software error detected in cable port 1	error
`Fault: Cable Port 2 – Communication Error`	Cable not inserted properly or connection points damaged	Cable port 2 communication failure	error
`Fault: Cable Port 2 – Hardware Failure`	Cable is not inserted properly or connection points are damaged	Cable 2 insertion failure or damaged connectors	error
`Fault: Cable Port 2 - Incompatible Software Version`	Unsuccessful software upgrade or incompatible software version in cable port 2	Software upgrade failure or version incompatibility in cable port 2	error
`Fault: Cable Port 2 – Software Failure`	Software error with cable in port 2	Software error detected in cable port 2	error
`Fault: Cable Port <#> – Pressure Cable Disconnected`	Pressure cable disconnected or not detected during monitoring	Pressure cable disconnected or not detected	error
`Fault: HemoSphere ClearSight Module`	Defective HemoSphere ClearSight module	ClearSight module malfunction detected	error
`Fault: HemoSphere ClearSight Module Disconnected`	HemoSphere ClearSight module removed or not detected	ClearSight module disconnected or not detected during monitoring	error
`Fault: HIS Connectivity Loss`	Loss of HL7 communication	HL7 communication loss detected	warning
`Fault: Internal System Failure`	Internal system malfunction	Internal system malfunction detected	critical
`Fault: L-Tech Module Slot – Communication Error`	Large technology module not inserted properly or connection points damaged	L-Tech module communication failure	error
`Fault: L-Tech Module Slot – Hardware Failure`	Large technology module is not inserted properly or connection points are damaged	L-Tech module insertion failure or damaged connectors	error
`Fault: L-Tech Module Slot – Incompatible Software Version`	Unsuccessful software upgrade or incompatible software version in L-Tech slot	Software upgrade failure or version incompatibility in L-Tech module slot	error
`Fault: L-Tech Module Slot – Software Failure`	Software error with large technology module	Software error detected in L-Tech module slot	error
`Fault: Module Slot 1 – Communication Error`	Module 1 not inserted properly or connection points damaged	Module 1 communication failure	error
`Fault: Module Slot 1 – Hardware Failure`	Module 1 is not inserted properly or connection points are damaged	Module 1 insertion failure or damaged connectors	error
`Fault: Module Slot 1 - Incompatible Software Version`	Unsuccessful software upgrade or incompatible software version in slot 1	Software upgrade failure or version incompatibility in module slot 1	error
`Fault: Module Slot 1 – Software Failure`	Software error with module in slot 1	Software error detected in module slot 1	error
`Fault: Module Slot 2 – Communication Error`	Module 2 not inserted properly or connection points damaged	Module 2 communication failure	error
`Fault: Module Slot 2 – Hardware Failure`	Module 2 is not inserted properly or connection points are damaged	Module 2 insertion failure or damaged connectors	error
`Fault: Module Slot 2 - Incompatible Software Version`	Unsuccessful software upgrade or incompatible software version in slot 2	Software upgrade failure or version incompatibility in module slot 2	error
`Fault: Module Slot 2 – Software Failure`	Software error with module in slot 2	Software error detected in module slot 2	error
`Fault: Monitor – Incompatible Software Version`	Unsuccessful software upgrade or incompatible software version detected	Software upgrade failure or version incompatibility at monitor level	error
`Fault: Oximetry Cable Disconnected`	Oximetry cable connection not detected at monitor	Oximetry cable connection not detected	error
`Fault: Pressure-Out – Hardware Failure`	Pressure-out cable is not properly connected or damaged	Pressure-out cable connection failure or damage	error
`Fault: Second CO Pressure Sensor Detected`	Multiple pressure cables with CO sensor connections detected	Detection of more than one CO pressure sensor connection	error
`Fault: Second Oximetry Cable Detected`	Multiple oximetry cable connections detected	Detection of more than one oximetry cable connection	error
`Fault: Second Swan-Ganz Module Detected`	Multiple Swan-Ganz module connections detected	Detection of more than one Swan-Ganz module connection	error
`Fault: Swan-Ganz Module Disconnected`	HemoSphere Swan-Ganz module removed or not detected	Swan-Ganz module disconnected during monitoring or not detected	error
`Fault: System Temperature Too High - Shutdown Imminent`	Internal temperature at critically high level, shutdown imminent	Internal temperature reaches critical level	critical
`Incorrect password entered`	Password entered is incorrect	User enters incorrect password	warning
`Module Status Blue LED`	Channels associated with port B on HemoSphere tissue oximetry module	Module configured for port B	info
`Module Status Green LED`	Channels associated with port A on HemoSphere tissue oximetry module	Module configured for port A	info
`Please enter valid date`	Date entered is invalid	User enters invalid date format	info
`Please enter valid time`	Time entered is invalid	User enters invalid time format	info
`Service Battery`	Internal battery fault occurred	Battery fault detected	warning
`Value must be ≥ xx`	Entered value is lower than the low value setting	User enters value below minimum setting	info
`Value must be ≤ xx`	Entered value is higher than the high value setting	User enters value above maximum setting	info
`Value out of range (xx-yy)`	Entered value is outside the allowed range	User enters value higher or lower than allowed range	info

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.