Pressure monitors · Carescape Canvas family

GE Healthcare E-PP: troubleshooting and error codes

The ServiceForge knowledge base holds 28 documented symptoms for the GE Healthcare E-PP, with 50 ranked causes, 68 diagnostic checks with test points and expected values, and 26 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Abnormally low invasive pressure reading patient safety

Invasive pressure measurement displays lower than expected value

Ranked causes

1. Transducer wrongly positioned (common)
2. Defective transducer (occasional)
3. Module not connected (common)
4. Transducer adapter cable not connected (common)
5. Invasive pressure channel not configured or inactive (occasional)

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

Abnormally low pressure reading

Invasive pressure measurement shows abnormally low values on display despite proper setup.

Ranked causes

1. Transducer wrongly positioned (common)
2. Defective transducer (occasional)
3. Module not connected (occasional)
4. Transducer adapter cable not connected (occasional)
5. Channel not configured with adequate priority (occasional)

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

No temperature displayed

Temperature measurement shows no reading or value on display.

Ranked causes

1. Temperature channel not configured with adequate priority (occasional)
2. Incompatible temperature probe (occasional)
3. STP setting incorrect (occasional)
4. Faulty temperature probe (occasional)
5. Temperature out of measurable range (rare)

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

Invasive pressure measurement over range patient safety

Displayed pressure reading exceeds 320 mmHg or 43 kPa; alarm displayed in parameter window

Ranked causes

1. Measurement is over range (occasional)
2. Transducer not zeroed correctly (common)
3. Sensor or cable fault (occasional)

First check

Verify transducer zeroing procedure

Test point: Transducer zeroing status
Expected: Transducer zeroed correctly with stopcock open

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

Invasive pressure measurement under range patient safety

Displayed pressure reading below -40 mmHg or -5 kPa; alarm displayed in parameter window

Ranked causes

1. Measurement is under range (occasional)
2. Transducer not zeroed correctly (common)
3. Sensor or cable fault (occasional)

First check

Verify transducer zeroing procedure

Test point: Transducer zeroing status
Expected: Transducer zeroed correctly; no pulsating waveform during zeroing

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

Pressure calibration error or timeout patient safety

Calibration of invasive pressure channel fails; timeout during calibration process or gain out of limits

Ranked causes

1. Timeout during calibration (occasional)
2. Pulsating waveform detected during calibration (occasional)
3. Gain beyond limits (rare)

First check

Verify static pressure during calibration

Test point: Manometer reading
Expected: Steady 100-300 mmHg without pulsation

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

Temperature measurement error patient safety

T3, T4 or general temperature error; message in alarm area and parameter window

Ranked causes

1. Calibration error (common)
2. Front panel connector disconnection or poor contact (occasional)
3. STP board hardware failure (rare)

First check

Perform temperature calibration

Test point: Temperature measurement circuit
Expected: Calibration completed without errors

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

Functional check of invasive pressure measurement patient safety

Test invasive pressure channels (P5/P6 on E-PP, P3/P7 on E-PT) using patient simulator; verify zeroing, static pressure, and waveform accuracy

Ranked causes

1. Module installed or returned from maintenance; functional verification required (common)
2. Pressure reading out of specification; recalibration needed (occasional)

First check

Zero the invasive pressure channel

Test point: Module Zero key for tested channel
Expected: Zeroing message followed by Zeroed message in parameter window mmHg

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

Temperature measurement removed patient safety

Temperature measurement channel has become inactive; message in alarm area

Ranked causes

1. Acquisition module removed (occasional)
2. Temperature cable disconnected (occasional)

First check

Verify acquisition module connection

Test point: Module connector
Expected: Module fully seated in connector with no gaps

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

Arterial pressure line disconnected patient safety

Pressure reading lost; disconnection alarm displayed for arterial pressure channels Art 1 through Art 8 or Fem 1 through Fem 8

Ranked causes

1. No arterial invasive pressure detected (common)

First check

Verify physical connection of pressure line

Test point: Arterial line connector at module
Expected: Line connected and seated properly; no visible disconnection

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

Calibration: E-PP/E-PT PT/PP setting configuration

Module PT/PP setting must be checked and reconfigured after STP board replacement to ensure correct parameter set capability.

Ranked causes

1. STP board replacement requires PT/PP setting verification (common)

First check

Disconnect all other E-PP, E-PT, E-P modules except the one being configured

Test point: Physical connections to monitor
Expected: Only target module connected

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

Calibration: E-PP/E-PT PT/PP setting reconfiguration

After STP board replacement, PT/PP setting must be reconfigured if current setting does not match module capability.

Ranked causes

1. Incorrect PT/PP setting after STP board replacement (occasional)

First check

Access P/PT/PP Settings configuration field

Test point: Configuration menu
Expected: Setting editable

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

Calibration: Functional check patient safety

Verify E-PP and E-PT modules operate correctly after maintenance or repair using patient simulator

Ranked causes

1. Module requires functional verification after service (common)

First check

Visual inspection of front cover

Test point: Module front cover
Expected: Intact with no damage

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

Calibration: Invasive pressure patient safety

Invasive pressure transducer readings are inaccurate or out of specification; required after transducer replacement or failed calibration check

Ranked causes

1. Pressure transducer replaced or calibration drift (common)

First check

Verify module is connected to monitor

Test point: Module connection status
Expected: Module connected

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

Calibration: Patient simulator connection setup

Connect patient simulator with appropriate adapter cables for temperature and invasive blood pressure testing

Ranked causes

1. Patient simulator required for functional testing (common)

First check

Prepare patient simulator and cables

Test point: Patient simulator equipment
Expected: All cables and adapters available and functional

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

Calibration: Temperature patient safety

Temperature probe readings are inaccurate or out of specification; required after failed calibration check or when reading outside specification limits

Ranked causes

1. Temperature calibration drift or check failure (common)

First check

Verify module is connected to monitor

Test point: Module connection status
Expected: Module connected

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

Channel zeroing in progress

IP channel is currently being zeroed; message in parameter window

Ranked causes

1. Normal zeroing operation underway (common)

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

Functional check of temperature measurement patient safety

Test temperature channels (T3 and T4 on E-PT) using patient simulator; verify temperature reading accuracy

Ranked causes

1. Module installed or returned from maintenance; temperature channel verification required (common)

First check

Verify temperature reading accuracy

Test point: T3 and T4 parameter windows
Expected: Temperature matches configured simulator value ± 0.1 °C / ± 0.2 °F, ±0.1 °C / ±0.2 °F

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

ICP channel must be zeroed separately patient safety

ICP channel requires independent zeroing from other invasive pressures; message in alarm area

Ranked causes

1. ICP channel grouped with other pressure channels during zeroing (common)

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

Invasive pressure channel not zeroed patient safety

Alarm indicates at least one invasive pressure channel has not been zeroed before measurement

Ranked causes

1. Required zeroing not performed (common)

First check

Identify channels requiring zeroing

Test point: Pressure channel status display
Expected: All active channels show zeroing status completed

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

Module not responding

Module does not open menu or start activity when key is pressed

Ranked causes

1. Loose keypad cable or module connection problem (common)

First check

Press module key and observe menu or activity

Test point: Module keypad
Expected: Correct menu opens or activity starts

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

No invasive pressure displayed patient safety

Monitor shows no pressure value or reading; pressure channel inactive or not zeroed

Ranked causes

1. Invasive pressure channel not zeroed (common)

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

No pressure displayed

Invasive pressure measurement shows no reading or zero value on display.

Ranked causes

1. Invasive pressure channel not zeroed (common)

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

Temperature module calibration in progress

Module is performing self-test calibration; message in parameter window

Ranked causes

1. Normal calibration procedure underway (common)

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

Transducer zeroing failed with high offset patient safety

Zeroing operation fails; offset error exceeds 150 mmHg indicating defective transducer

Ranked causes

1. Defective transducer with offset exceeding 150 mmHg (common)

First check

Measure transducer offset value

Test point: Transducer offset during zeroing
Expected: Offset value < 150 mmHg

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

Visual inspection of E-PP/E-PT pressure module caution

Check module casing, connectors, front cover, patient cables for damage, cleanliness, and proper attachment

Ranked causes

1. Module installed or replaced; inspection required before operation (common)

First check

Inspect front cover for damage

Test point: Module front cover
Expected: Cover is intact with no cracks or separation

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

Zero adjustment exceeds 100 mmHg patient safety

Offset during zeroing has exceeded 100 mmHg; message appears in parameter window

Ranked causes

1. Transducer offset error during zeroing (common)

First check

Verify transducer zeroing procedure completed correctly

Test point: Parameter window
Expected: Zeroing offset within 100 mmHg range

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

Zeroing successful

Transducer zeroing completed successfully; message in parameter window

Ranked causes

1. Normal completion of zeroing procedure (common)

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

Error codes

Code	Meaning	Trigger	Severity
`Art 1 disconnect to Art 8 disconnect`	Arterial invasive pressure line is disconnected from module	Loss of signal from arterial pressure transducer; line not properly connected	warning
`Calibrated`	Invasive pressure channel calibration completed successfully	Calibration process finished within time limit with valid pressure applied	info
`Calibrating`	Calibration of invasive pressure channel is in progress	Calibration process initiated by operator or automatic procedure	info
`Calibration Error`	Invasive pressure calibration procedure failed or timed out	If pressure inflation not started within 45 seconds after automatic zeroing completion, or if calibration process fails	error
`Fem 1 disconnect to Fem 8 disconnect`	Femoral arterial invasive pressure line is disconnected from module	Loss of signal from femoral pressure transducer; line not properly connected	warning
`Identical PP modules`	Two or more E-PP (Dual Pressure) modules detected in same system	Multiple identical pressure modules installed simultaneously	error
`Identical PT modules`	Two or more E-PT (Pressure Temperature) modules detected in same system	Multiple identical PT modules installed simultaneously	error
`IP's not zeroed`	One or more invasive pressure channels have not been zeroed before measurement	Measurement attempt without prior zeroing of all active channels	warning
`P1 standby to P8 standby`	Invasive pressure channel set to standby mode and not active	Channel deactivated or placed in standby by user action	info
`P1 zeroing failed to P8 zeroing failed`	Zeroing operation for invasive pressure channel failed due to transducer fault	Zeroing attempted with defective transducer; offset exceeds 150 mmHg threshold	error
`P5 over range to P8 over range`	Invasive pressure measurement channels P5 through P8 reading exceeds 320 mmHg or 43 kPa	Pressure transducer output exceeds upper measurement limit	warning
`P5 under range to P8 under range`	Invasive pressure measurement channels P5 through P8 reading below -40 mmHg or -5 kPa	Pressure transducer output below lower measurement limit	warning
`Performing temp test`	Temperature module self-test calibration in progress	Module calibration sequence started	info
`Pressure measurement removed`	Pressure measurement acquisition device has been disconnected or removed from system	Module or transducer physically disconnected from monitor	warning
`Pressure Sensed`	Pulsating waveform detected during zeroing operation	Dynamic pressure pulsation present when zeroing procedure initiated	warning
`Sensor disconnected`	Invasive pressure sensor is physically disconnected or communication lost	Sensor cable disconnected from module; transducer detection lost	warning
`T3 temperature error`	T3 temperature measurement sensor or circuit failure	Temperature measurement error detected on T3 channel	error
`T4 temperature error`	T4 temperature measurement sensor or circuit failure	Temperature measurement error detected on T4 channel	error
`Temperature error`	General temperature measurement failure	Temperature measurement circuit malfunction detected	error
`Temp measurement removed`	Temperature measurement channel has become inactive	Acquisition module or temperature cable disconnected during operation	warning
`UAC 1 disconnect to UAC 4 disconnect`	Umbilical arterial catheter invasive pressure line is disconnected	Loss of signal from UAC transducer; line not properly connected	warning
`Zero adj >100 mmHg`	Zero adjustment exceeds 100 mmHg limit	Transducer offset during zeroing procedure exceeds 100 mmHg	warning
`Zeroed`	Transducer zeroing completed successfully	Zeroing procedure completed without exceeding 100 mmHg offset	info
`Zero Failure`	Automatic zeroing of invasive pressure channel failed	During invasive pressure calibration zeroing procedure when transducer preparation is incorrect	error
`Zero ICP separately`	ICP channel must be zeroed independently from other invasive pressures	Attempt to zero ICP with other pressure channels	warning
`Zeroing`	ICP channel currently being zeroed	Zeroing procedure in progress	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.