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Anesthesia machines · Narkomed 6000 Series family

Dräger Narkomed 6000: troubleshooting and error codes

The ServiceForge knowledge base holds 78 documented symptoms for the Dräger Narkomed 6000, with 167 ranked causes, 374 diagnostic checks with test points and expected values, and 64 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Loss of Oxygen Monitor patient safety

O2 monitoring display not functioning or not showing readings

Ranked causes

  1. 1. O2 Sensor Cord disconnected from interface (common)
  2. 2. O2 Sensor Capsule not installed correctly (common)
  3. 3. O2 Sensor Capsule failed (occasional)
  4. 4. O2 Sensor Cord failed (occasional)
  5. 5. VPO (Vital Parameters Module) failed (occasional)
  6. 6. WPU (Work Processing Unit) failed (rare)
  7. 7. Cable or Vitalbus connection failure (rare)
First check

Is O2 Sensor Cord connected to interface?

Test point
Interface panel connection
Expected
O2 Sensor Cord connected

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

Loss of Respiratory Volume Monitor patient safety

Respiratory volume monitoring display not functioning or not showing readings

Ranked causes

  1. 1. Ultrasonic Flow Sensor Cord not connected to interface (common)
  2. 2. Ultrasonic Flow Sensor transducers not fully seated (common)
  3. 3. Ultrasonic Flow Sensor or adapter faulty (occasional)
  4. 4. Ultrasonic Flow Sensor transducers failed (occasional)
  5. 5. VPO (Vital Parameters Module) failed (occasional)
  6. 6. WPU (Work Processing Unit) failed (rare)
  7. 7. Cable or Vitalbus HUB connection failure (rare)
First check

Is Ultrasonic Flow Sensor Cord connected to interface panel?

Test point
Interface panel connection
Expected
Cord fully connected

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

Event log transfer to Windows XP laptop caution

Download Narkomed 6000 Series Event, Alarm and Data logs to service laptop for analysis

Ranked causes

  1. 1. Need to configure laptop hardware and network (common)
  2. 2. Need to power on and initialize system (common)
  3. 3. Need to verify or configure user access (occasional)
  4. 4. Need to verify computer name and network TCP/IP settings (occasional)
  5. 5. Need to create and configure NAD Software folder structure (occasional)
  6. 6. Need to share NAD Software folder with correct permissions (occasional)
First check

Verify Vitalan cable connection to Vitalbus

Test point
Vitalbus port on Hub
Expected
Etherlink cable from laptop connected to Vitalbus port

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

Monitor display failure

CRT or Flat Panel display not showing image or is blank

Ranked causes

  1. 1. Video cable disconnected or faulty (common)
  2. 2. WPU Video PCB not properly seated (common)
  3. 3. Incorrect voltage at CRT or Flat Panel (occasional)
  4. 4. CRT or Flat Panel display failed (occasional)
  5. 5. WPU battery needs replacement and BIOS reset (occasional)
  6. 6. WPU (Work Processing Unit) failed (rare)
First check

Turn power to Standby, remove AC power, wait 3 minutes, disable breakers

Test point
Power cycle procedure
Expected
Equipment fully powered down

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

No audible alarms or speaker failure patient safety

Audible alarm signals not heard or speaker fail message displayed

Ranked causes

  1. 1. Master Volume set below 50% (common)
  2. 2. Speaker has poor resistance or connection (common)
  3. 3. Speaker failed (occasional)
  4. 4. Speaker connections faulty (occasional)
  5. 5. Vitalbus PCB failed (rare)
  6. 6. WPU (Work Processing Unit) failed (rare)
First check

Is Windows NT Master Volume at least 50% or higher?

Test point
Volume setting
Expected
Master Volume at 50% or higher

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

Communications port failure

Peripheral device cannot communicate with NM6K via communications port

Ranked causes

  1. 1. Interface cable not connected to peripheral device (common)
  2. 2. Peripheral device or NM6K serial port configuration incorrect (common)
  3. 3. NM6K serial port internal cabling faulty (occasional)
  4. 4. ISO Port PCB failed (occasional)
  5. 5. WPU (Work Processing Unit) failed (rare)
First check

Is peripheral interface cable connected to Comm port?

Test point
Comm port connection
Expected
Cable fully connected between peripheral and NM6K

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

Event log transfer to laptop fails

NM6000 Series unable to transfer event logs to service laptop via Vitalbus/Etherlink connection during remote save operation

Ranked causes

  1. 1. Laptop computer name is not SRVLAP028 (common)
  2. 2. Target folder is not NAD Software (common)
  3. 3. TCP/IP network configuration incorrect (occasional)
  4. 4. Network workgroup is not configured to Goldisk (occasional)
  5. 5. Etherlink card not properly configured (occasional)
First check

Verify network workgroup name

Test point
Windows NT Network Neighborhood Properties, Identification tab
Expected
Goldisk

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

GAP/GAP2 fails self-diagnostic test

GAP or GAP2 analyzer fails self diagnostic test while all other PODs pass

Ranked causes

  1. 1. System power supply voltage issue (common)
  2. 2. GAP/GAP2 needs sample flow calibration (common)
  3. 3. Common Processor failed (occasional)
  4. 4. GAP/GAP2 Personality PCB voltage issue (occasional)
  5. 5. GAP/GAP2 Personality PCB failed (rare)
First check

Perform GAP/GAP2 flow, line block and accuracy tests

Test point
GAP/GAP2 analyzer
Expected
All tests pass

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

Leak test failure at ventilator start-up patient safety

Divan reports leak during power-on self-test; system fails leak integrity test

Ranked causes

  1. 1. Sub-System 1 leak (breathing circuit components) (common)
  2. 2. Sub-System 3 leak (breathing bag and related components) (common)
  3. 3. Sub-System 1/2 or Sub-System 2 leak (CO2 canister and exhaust path) (common)
  4. 4. Breasy assembly faulty or misaligned (occasional)
  5. 5. Piston-cylinder unit faulty or misaligned (occasional)
First check

Run Divan power-on selftest

Test point
Divan control system
Expected
Selftest passes without leak alerts

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

Loss of Breathing Pressure Monitor patient safety

Pressure monitoring display not functioning or not showing readings

Ranked causes

  1. 1. Pilot line or mechanical gauge not connected (common)
  2. 2. Pressure Monitor needs calibration (common)
  3. 3. VPO (Vital Parameters Module) failed (occasional)
  4. 4. WPU (Work Processing Unit) failed (rare)
  5. 5. Cable or Vitalbus HUB connection failure (rare)
First check

Are pilot line and mechanical gauge connected at both ends?

Test point
Pilot line and gauge connections
Expected
Both connections fully seated

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

Valve test manual patient safety

Manual solenoid valve operation test to check pneumatic control system function

Ranked causes

  1. 1. Fresh gas valve malfunction (unknown)
  2. 2. APL valve malfunction (unknown)
  3. 3. Air inlet valve malfunction (unknown)
  4. 4. Piston seal malfunction (unknown)
  5. 5. O2 supply valve malfunction (unknown)
First check

Test fresh gas valve MY1

Test point
Breathing system interface V1
Expected
Control pressure reading changes when Pmax key pressed

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

Faulty vapor exclusion system caution

Exclusion system does not operate properly; vaporizer access or isolation fails

Ranked causes

  1. 1. Slider bars require lubrication or are binding (common)
  2. 2. Vaporizer height misaligned with exclusion bar (common)
  3. 3. Exclusion knob has free play or does not reach far right position (occasional)
  4. 4. Vapor Mount assembly faulty or worn (occasional)
First check

Verify slider bar lubrication and free movement

Test point
Exclusion slider bars
Expected
Bars slide freely without binding or resistance

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

GAP/GAP2 displays line block

LINE BLOCK message displayed on GAP or GAP2 analyzer screen indicating sample line obstruction

Ranked causes

  1. 1. External component obstruction (waterlok, filter, nafion, sample line) (common)
  2. 2. Internal component restriction or occlusion (common)
  3. 3. GAP pump flow restriction (occasional)
  4. 4. Pump failed (GAP2) (rare)
First check

Perform GAP or GAP2 flow calibration

Test point
GAP/GAP2 analyzer
Expected
Flow calibration completes successfully

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

GAP/GAP2 displays SERVICE GAP message

SERVICE GAP message displayed on GAP or GAP2 analyzer screen

Ranked causes

  1. 1. GAP/GAP2 needs sample flow calibration (common)
  2. 2. System power supply voltage issue (common)
  3. 3. IRIA error code logged (occasional)
  4. 4. GAP/GAP2 Personality PCB failed (occasional)
First check

Perform GAP or GAP2 sample flow, line block and accuracy tests

Test point
GAP/GAP2 analyzer
Expected
All tests pass

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

Touch screen not responding

Touch screen input not responding to operator touches or screen press actions not registering

Ranked causes

  1. 1. Touch/Video cable connection loose or faulty (common)
  2. 2. Touch screen needs calibration (common)
  3. 3. CRT or Flat Panel display failed (occasional)
  4. 4. WPU (Work Processing Unit) failed (rare)
First check

Check Touch or Touch/Video cable connections from WPU to monitor

Test point
Cable connectors at WPU and monitor
Expected
Cables fully seated and secured

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

Ventilator piston-cylinder unit not operating caution

Piston-cylinder unit fails to function or generates excessive audible hum during operation

Ranked causes

  1. 1. Shaft lubrication insufficient (common)
  2. 2. Loose or detached canister, piston, faulty diaphragm, or loss of seal pressure (common)
  3. 3. Piston removal position out of reset (occasional)
  4. 4. Piston-cylinder unit faulty or worn (occasional)
First check

Lubricate piston-cylinder shaft

Test point
Shaft
Expected
Proper lubrication applied

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

Event log transfer to service laptop fails

NM6000 Series unable to transfer event log and POD logs to service laptop using Ethernet connection

Ranked causes

  1. 1. Laptop not properly configured for network file sharing (common)
  2. 2. Virus protection not enabled or definitions outdated (occasional)
  3. 3. Ethernet connection not established (occasional)
First check

Verify laptop computer name setting

Test point
Network configuration, Identification tab
Expected
srvlap

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

Leak test manual

Service diagnostic to measure subsystem leak rate and locate leaks

Ranked causes

  1. 1. Leak in bag hose or bag (unknown)
  2. 2. Leak in fresh gas hose or flow meter circuit (unknown)
  3. 3. Leak in vaporizer mount or ORC (unknown)
First check

Execute manual leak test for subsystems 1, 2, 3

Test point
Full breathing system and vaporizer circuit
Expected
Leak rate displayed in mL/min; zero or minimal acceptable leakage

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

No oxygen supply pressure alarms patient safety

Low O2 supply pressure alarm does not trigger when oxygen supply is low

Ranked causes

  1. 1. O2 supply pressure switch faulty or disconnected (common)
  2. 2. Switch wiring or System I/O cable connection faulty (occasional)
  3. 3. WPU (Work Processing Unit) failed (rare)
First check

Disconnect switch and test continuity

Test point
Switch continuity
Expected
Continuity present, switch operates properly

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

Temperature 1 reading incorrect or not displayed

T1 TEMP parameter window does not appear on monitor display or reading is not 37.0°C ±0.2°C when simulator is set to 37°C output

Ranked causes

  1. 1. Incorrect simulator configuration for temperature output (common)
  2. 2. Wrong temperature adapter cable connected (occasional)
  3. 3. Temperature connector not properly connected to T1 (occasional)
First check

Verify simulator is configured for 37°C temperature output

Test point
Simulator Code entry
Expected
Code 191 entered and accepted

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

Unusual Divan noise during operation caution

Machine produces abnormal creaking, grinding, or hum sounds during breathing cycles

Ranked causes

  1. 1. Motor drive belt requires lubrication (common)
  2. 2. Piston-cylinder valve rod requires lubrication (common)
  3. 3. Non-return valve in Breasy defective or worn (occasional)
First check

Determine if noise is reproducible

Test point
Divan operation with standard settings
Expected
Noise reproduces consistently with same FGF, Pmax, Vt, %IP, PEEP, Rate

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

Calibration: Double Vapor Exclusion System alignment

Right mounted vaporizer difficult to engage or exclusion bar does not properly slide into vaporizer cap due to excessive sagging

Ranked causes

  1. 1. Misaligned chassis bracket causing vaporizer sagging (common)
  2. 2. Obstruction preventing proper shim installation (occasional)
First check

Remove vaporizer from right exclusion mount and bottom cover from cockpit area

Test point
Right mounted vaporizer and cockpit area
Expected
Bottom cover removed, vaporizer accessible

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

NIBP cuff inflation cycle malfunction

Cuff does not inflate repetitively or inflation-to-inflation interval exceeds three seconds when STAT measurement initiated.

Ranked causes

  1. 1. Cuff connection or inflation valve malfunction (unknown)
  2. 2. STAT cycle timing too slow (unknown)
First check

Touch STAT key and observe cuff inflation and deflation cycle

Test point
NIBP window, STAT control, cuff
Expected
Cuff inflates and deflates repetitively

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

NIBP diastolic alarm function verification

Verify diastolic pressure alarm triggers and ceases correctly at low and high setpoints during BP measurement cycle.

Ranked causes

  1. 1. Diastolic low alarm setpoint incorrectly configured (unknown)
  2. 2. Diastolic high alarm setpoint incorrectly configured (unknown)
First check

Touch PRESSURE key and toggle to Dias

Test point
Alarms tab, PRESSURE control
Expected
Diastolic pressure parameters displayed

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

NIBP mean alarm function verification

Verify mean pressure alarm triggers and ceases correctly at low and high setpoints during BP measurement cycle.

Ranked causes

  1. 1. Mean low alarm setpoint incorrectly configured (unknown)
  2. 2. Mean high alarm setpoint incorrectly configured (unknown)
First check

Touch PRESSURE key and toggle to Mean

Test point
Alarms tab, PRESSURE control
Expected
Mean pressure parameters displayed

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

NIBP systolic alarm function verification

Verify systolic pressure alarm triggers and ceases correctly at low and high setpoints during BP measurement cycle.

Ranked causes

  1. 1. Systolic low alarm setpoint incorrectly configured (unknown)
  2. 2. Systolic high alarm setpoint incorrectly configured (unknown)
First check

Install BP cuff on arm and open NIBP window

Test point
NIBP interface
Expected
NIBP window accessible, cuff installed

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

Piston movement test patient safety

Manual piston operation test to verify motor and position sensor function

Ranked causes

  1. 1. Motor malfunction or disconnection (unknown)
  2. 2. Piston position encoder malfunction (unknown)
First check

Activate piston movement in both directions

Test point
Piston mechanism and motor
Expected
Piston moves smoothly in both directions when knob turned

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

System electronics do not energize at switch ON high voltage

When the main power switch is turned to ON position, the system electronics fail to energize.

Ranked causes

  1. 1. Main switch not properly adjusted or mechanically binding (common)
  2. 2. Circuit breakers disabled or power not restored (common)
First check

Verify AC power is connected to rear panel

Test point
Rear power supply connector
Expected
AC power cord firmly connected

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

System Non-Functional

Serious diagnostic problem detected; system will not proceed

Ranked causes

  1. 1. VPO Pod Firmware failure (unknown)
  2. 2. Ventilator subsystem failure (unknown)

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

Temperature 1 high alarm not functioning

TEMP 1 HIGH caution message and intermittent audible alarm do not appear when alarm limit is decreased below actual temperature

Ranked causes

  1. 1. Temperature 1 alarm not enabled (common)
  2. 2. Incorrect T1 high alarm limit setting (occasional)
First check

Verify Temperature 1 alarm is enabled and T1 channel is selected

Test point
Alarm control and Alarm Limits channel selection key
Expected
Alarm control ON, Alarm Limits set to T1 channel

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

Temperature 1 low alarm not functioning

TEMP 1 LOW caution message and intermittent audible alarm do not appear when alarm limit is raised above actual temperature

Ranked causes

  1. 1. Temperature 1 alarm not enabled (common)
  2. 2. Incorrect T1 low alarm limit setting (occasional)
First check

Verify Temperature 1 alarm is enabled and T1 channel is selected

Test point
Alarm control and Alarm Limits channel selection key
Expected
Alarm control ON, Alarm Limits set to T1 channel

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

Temperature 2 high alarm not functioning

TEMP 2 HIGH caution message and intermittent audible alarm do not appear when alarm limit is decreased below actual temperature

Ranked causes

  1. 1. Temperature 2 alarm not enabled or T2 not selected (common)
  2. 2. Incorrect T2 high alarm limit setting (occasional)
First check

Toggle Alarm Limits channel selection to T2 and note settings

Test point
Alarm Limits channel selection key and alarm settings display
Expected
T2 channel selected; T2 high and low alarm settings visible

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

Temperature 2 low alarm not functioning

TEMP 2 LOW caution message and intermittent audible alarm do not appear when alarm limit is raised above actual temperature

Ranked causes

  1. 1. Temperature 2 alarm not enabled or T2 not selected (common)
  2. 2. Incorrect T2 low alarm limit setting (occasional)
First check

Toggle Alarm Limits channel selection to T2 and note settings

Test point
Alarm Limits channel selection key and alarm settings display
Expected
T2 channel selected; T2 high and low alarm settings visible

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

Temperature 2 reading incorrect or not displayed

T2 TEMP parameter window does not appear on monitor display or reading is not 37.0°C ±0.2°C when connected to T2 connector

Ranked causes

  1. 1. Temperature simulator cable not connected to T2 connector (common)
  2. 2. Temperature adapter cable damaged or loose connection at T2 (occasional)
First check

Move temperature simulator cable to T2 connector

Test point
T2 connector of Integrated Patient Monitoring Module
Expected
Cable moved from T1 to T2 connector

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

Blood temperature alarm not triggering patient safety

Caution alarm T BLOOD LO or T BLOOD HI does not appear on central alarm display or audible alarm does not sound when limits are adjusted

Ranked causes

  1. 1. Alarm Control not enabled or alarm limits not properly adjusted (common)
First check

Toggle Alarm Control key to ON and verify original settings noted

Test point
Alarm Control key
Expected
Alarm Control enabled

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

Calibration too loose with free play remaining at lever caution

After completing calibration procedure, free play detected at top of lever when exclusion knob is at far right position, indicating insufficient tightening.

Ranked causes

  1. 1. Insufficient upper calibration screw tightening in initial pass (occasional)
First check

Loosen both calibration screws

Test point
Upper and lower calibration screws
Expected
Several rotations counterclockwise

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

Calibration: Alarm sound volume adjustment

Reduce maximum alarm annunciation sound volume level from 100% to 50% by adjusting Windows NT master volume via keyboard and control panel commands

Ranked causes

  1. 1. Customer request to reduce alarm volume (common)
First check

Power on unit and reach startup completion

Test point
Divan Standby key
Expected
Unit completes start-up

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

Calibration: Alarm speaker functionality verification

Verify speaker operation and audio quality after volume adjustment at both maximum and minimum levels

Ranked causes

  1. 1. Post-calibration speaker verification required (common)
First check

Listen for tone at maximum volume setting

Test point
Unit speaker output, Volume slider maximum
Expected
Audible tone present

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

Calibration: Breathing Pressure Monitor

Zero and span calibration procedure for breathing pressure monitor to ensure accurate pressure measurement

Ranked causes

  1. 1. Calibration required for accurate pressure readings (unknown)
First check

Turn System Power switch to ON

Test point
System Power switch
Expected
ON position

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

Calibration: Breathing system leveling adjustment patient safety

Breathing system top surface not parallel to back edge of ventilator chassis; requires leveling via eccentric mounts on left side pins

Ranked causes

  1. 1. Breathing system not level during installation or after maintenance (common)
First check

Turn System Power Switch to STANDBY

Test point
Power switch
Expected
STANDBY position

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

Calibration: CRT alignment high voltage

CRT picture size, centering, and rotation require adjustment

Ranked causes

  1. 1. CRT alignment adjustment needed (unknown)
First check

Remove upper back cover

Test point
Machine upper back
Expected
Cover removed safely

7 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Cylinder Pressure Regulator Adjustment high voltage

Set cylinder pressure regulators to correct output pressure for O2, N2O, and Air cylinders using test pressure gauge at regulator test ports.

Ranked causes

  1. 1. Regulator pressure requires setting or verification (common)
First check

Disconnect all pipeline hoses

Test point
Pipeline connections
Expected
All hoses disconnected

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

Calibration: Gas Analyzer Sample Flow Rate Adjustment

Set gas analyzer sample flow rate using test flowmeter.

Ranked causes

  1. 1. Gas analyzer sample flow rate requires setting (unknown)

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

Calibration: Invasive Blood Pressure (BP1/ART)

Verify invasive blood pressure sensitivity calibration at 5µV/V1 mmHg and test ART1 connector with simulator cable

Ranked causes

  1. 1. Calibration procedure for BP1 invasive pressure monitoring (common)
First check

Filter frequency setting

Test point
BP1 Setup tab
Expected
12

13 more checks with pass and fail actions, 16 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Invasive Blood Pressure (BP2/CVP2)

Verify CVP2 central venous pressure sensitivity calibration and test CVP2 connector with simulator cable

Ranked causes

  1. 1. Calibration procedure for BP2/CVP2 invasive pressure monitoring (common)
First check

Filter frequency setting

Test point
BP2/CVP2 Setup tab
Expected
12

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

Calibration: Invasive Blood Pressure (BP3/PA3)

Verify PA3 pulmonary artery pressure sensitivity calibration and test PA3 connector with simulator cable

Ranked causes

  1. 1. Calibration procedure for BP3/PA3 invasive pressure monitoring (common)
First check

Filter frequency setting

Test point
BP3/PA3 Setup tab
Expected
12

13 more checks with pass and fail actions, 14 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Invasive Blood Pressure (BP4/FEM4)

Verify FEM4 femoral artery pressure sensitivity calibration if applicable; test BP4 connector with simulator cable

Ranked causes

  1. 1. Calibration procedure for BP4/FEM4 invasive pressure monitoring (if applicable) (common)
First check

Filter frequency setting

Test point
BP4/FEM4 Setup tab
Expected
12

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

Calibration: Oxygen Ratio Controller Adjustment

Adjust Oxygen Ratio Controller using oxygen monitor.

Ranked causes

  1. 1. Oxygen Ratio Controller requires calibration (unknown)

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

Calibration: Right vaporizer vertical adjustment

Difficulty engaging right vaporizer; exclusion system operation needs verification or correction

Ranked causes

  1. 1. Right vaporizer misalignment requiring set screw adjustment (unknown)
First check

Power system to STANDBY

Test point
System Power switch
Expected
STANDBY position

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

Calibration: System electrical switch adjustment high voltage

Adjustment of the main power switch, lever switch, and paddle to ensure correct actuation and overtravel on the Narkomed 6000 anesthesia machine.

Ranked causes

  1. 1. Switch requires mechanical alignment and paddle adjustment (common)
First check

Turn System Power switch to STANDBY

Test point
Main power switch
Expected
STANDBY position

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

Calibration: Test all vaporizers on right exclusion mount

Verify exclusion system operation for all vaporizers installed on NM6000 Series

Ranked causes

  1. 1. Multiple vaporizers may require individual alignment adjustment (occasional)
First check

Install each additional vaporizer in right exclusion mount

Test point
Right exclusion mount
Expected
Vaporizer engages properly with exclusion system

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

Calibration: Touch Screen alignment

Touch Screen calibration required after CRT alignment

Ranked causes

  1. 1. Touch Screen calibration required following CRT adjustment (unknown)
First check

Perform Touch Screen calibration

Test point
Touch Screen display
Expected
Calibration completed per Section 5.10

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

Calibration: Touch Screen and Alarms Adjustment

Perform advanced touch screen calibration, adjust alarm volume, and set Time Zone using keyboard.

Ranked causes

  1. 1. Touch screen, alarm volume or time zone requires adjustment (unknown)

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

Calibration: Triple Vapor Mount patient safety

Selector knob exclusion mechanism requires calibration to ensure proper relationship between selector knob position and upper exclusion pin engagement, preventing inadvertent vaporizer selection and ensuring smooth knob travel.

Ranked causes

  1. 1. Tolerance stack-up in exclusion mechanism assembly (common)
First check

Remove back cover of Triple Vapor Mount

Test point
Triple Vapor Mount assembly
Expected
Back cover removed per Section 4.8.10

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

Calibration: Triple Vapor Mount upper and left position rest height caution

Verify and adjust vaporizer mount height to ensure proper slider bar alignment and clearance with vaporizer sockets or D-Tec pin alignment.

Ranked causes

  1. 1. Vaporizer height misalignment (unknown)
First check

Verify slider bar clearance with vaporizer socket

Test point
Upper slider bar position against Vapor 19.n or Vapor 2000 socket
Expected
Equal clearance at top and bottom

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

Calibration: Ventilator control pressure adjustment patient safety

87 mbar control pressure regulator requires adjustment to ensure proper ventilator operation; procedure involves accessing the control pressure assembly and setting pneumatic pressure to specification.

Ranked causes

  1. 1. Control pressure regulator out of specification (unknown)
First check

Verify breathing system diaphragm integrity at location Y2

Test point
Y2
Expected
No leakage

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

Calibration: Ventilator Oxygen Supply Flow Rate Adjustment

Set ventilator oxygen supply flow rate using test flowmeter.

Ranked causes

  1. 1. Ventilator oxygen supply flow rate requires setting (unknown)

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

Calibration: Ventilator Supply Pressure - Verification Step

Verify ventilator supply control pressure is within specification 1.4 to 1.6 bar after adjustment.

Ranked causes

  1. 1. Control pressure verification required after regulator adjustment (common)
First check

Read pressure meter after locking regulator adjustment knob

Test point
Pressure meter display
Expected
1.4 to 1.6 bar (20.3 to 23 psi), 1.4 to 1.6 bar or 20.3 to 23 psi
Tools
Meriam 350 Smart Manometer or equivalent

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

Calibration: Ventilator Supply Pressure Adjustment

Adjust ventilator O2 supply regulator pressure to 1.5 bar (21.8 psi) on Narkomed 6000 anesthesia machine.

Ranked causes

  1. 1. Ventilator supply pressure requires calibration adjustment (common)
First check

Verify breathing system diaphragm integrity at location Y2

Test point
Location Y2
Expected
Diaphragm intact

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

Cannot remove ventilator piston-cylinder unit caution

Piston unit handle cannot be lifted to full up position or unit is stuck in chassis

Ranked causes

  1. 1. U-shaped channel on piston coupling assembly in wrong position (common)
First check

Verify system power in STANDBY mode

Test point
System Power switch
Expected
Switch set to STANDBY

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

More symptoms

  • Cardiac output monitor reading out of range
  • CO injectate temperature reading out of acceptable range
  • Disable P-SET NOT MET ALARM (optional)
  • Error: Breathing system does not seat properly on pins after adjustment
  • Event log transfer completes but files incomplete
  • Exclusion knob binds during travel in T-slot
  • Exclusion knob cannot reach far right end of T-slot
  • Insufficient transferred file size
  • Lever free play not eliminated after upper screw tightening
  • NIBP and SpO2 alarm interaction malfunction
  • Oxygen sensor will not calibrate properly
  • PEEP valve operation test
  • Pressure value display
  • System Conditionally Functional
  • Temperature test accuracy drift
  • Touch screen cursor does not appear or does not move properly
  • Upper calibration screw loosens when knob moved to vertical position
  • Verify power supply voltages

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

Error codes

CodeMeaningTriggerSeverity
0000Operating system errorSystem startup or operationcritical
0001UnknownUnknownunknown
0003UnknownUnknownunknown
0AxxUnknownUnknownunknown
1001 to 1005UnknownUnknownunknown
1007Reset command received. Module restarted.Reset command receivedinfo
1008Internal Software errorSoftware execution failureerror
1009No data from Oxigraf sensor. Oxigraf restarted.Oxigraf sensor communication losserror
1020 to 1030Checksum errorData integrity check failurewarning
1040The two sensors on MOPS PCB measure the same parameter (e.g. O2)Duplicate parameter detectioninfo
1111Module restartedModule restart eventinfo
1112Module reset itselfAutomatic module resetwarning
1113The temperature of the filter wheel or sample cell exceeds 65 degrees CSensor head temperature exceeds thresholderror
1114Sensor is in ISO or F mode and light-source voltage is incorrectIncorrect light-source voltage detectederror
1115IRIA Sensor Head errorSensor head malfunctionerror
1116UnknownUnknownunknown
1117IRIA Sensor Head error (GAP-2 specific)Sensor head malfunction in GAP-2error
1118IRIA Sensor Head errorSensor head malfunctionerror
1119UnknownUnknownunknown
111A12 V supply voltage lies outside of valid rangeSupply voltage out of specificationwarning
111BUnknownUnknownunknown
111C15 V supply voltage outside of valid rangeSupply voltage out of specificationwarning
111DUnknownUnknownunknown
111E6.4 V supply voltage outside of valid rangeSupply voltage out of specificationwarning
111FUnknownUnknownunknown
1200Incorrect checksumChecksum verification failurecritical
1201Incorrect ROM checksumROM checksum verification failurecritical
1202Incorrect calibration dataCalibration data verification failureerror
2111 to 2115UnknownUnknownunknown
2116UnknownUnknownunknown
2117Unknown error codeInternal failureerror
2118Internal software errorSoftware execution failureerror
2180One correction factor during spectral correction is zero. Correction cannot be carried out.Spectral correction factor is zeroerror
2200Water-trap self-test showed an errorWater trap self-test failureerror
3111The absolute pressure value is zeroPressure sensor returns zero valueerror
3112Pressure sensor conversion table not calculatedSystem conversion table missing during pressure conversionerror
3113Pressure sensor calibration data could not be readCalibration data read failureerror
3114EEPROM errorEEPROM read/write failureerror
3115UnknownUnknownunknown
3116UnknownUnknownunknown
3117Pressure sensor calibration errorPressure sensor calibration failureerror
3200No Pressure-sensor calibration availablePressure sensor calibration data missingerror
3300NOVRAM errorNVRAM read/write failureerror
3400No Factory Zero Data available on EEPROMFactory calibration data missingerror
3401No zero values available on NOVRAMZero calibration data missingwarning
3402Real-time clock errorRTC malfunction or synchronization failurewarning
3403 to 3408Incorrect data from O2 SensorO2 sensor data validation failurewarning
3420Module startup failure or incorrect configurationInitialization failure or configuration errorerror
3501Factory Zero was incorrectFactory zero calibration invaliderror
3502Zeroing failed because sufficient valid zero values could not be detectedZero calibration procedure failureerror
3503 to 3405Zeroing failedZero calibration procedure failureerror
3506 to 3509Factory zeroing failed because valid zero values could not be detectedFactory calibration failure during startuperror
350A to 350DZeroing failed because values of one reference filter were outside permissible rangeReference filter calibration out of rangeerror
350E to 3511Zeroing failed because zero values deviate considerably from factory zeroingZero calibration drift detectederror
3512 to 3515Zeroing failed because measured values differ considerablyZero calibration instabilityerror
3516Zeroing failed due to excessive negative pressure in pneumatic system during purgingExcessive negative pressure during purge cycleerror
3517Zeroing failed due to insufficient negative pressure in pneumatic system or positive pressure during purgingInadequate purge pressure during calibrationerror
3518 to 3520Incorrect signal from O2 SensorO2 sensor signal validation failureinfo
3A11Status of pump was not recognizedPump status detection failureerror
4000Motor is blocked and will be switched offMotor stalled or blocked condition detectedcritical
5000Internal software errorSoftware execution failureerror
7000 to 700CErrors with sensor specific monitoringSensor monitoring system failureerror
8000Error with numerical filter 1Digital filter processing failureerror
FxxxInternal software errorSoftware execution failureerror

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.