Electrosurgical generators

Olympus ESG-410: troubleshooting and error codes

The ServiceForge knowledge base holds 5 documented symptoms for the Olympus ESG-410, with 7 ranked causes, 18 diagnostic checks with test points and expected values, and 2 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Foot switch does not activate during CQM bipolar test

Pressing foot switch pedal does not activate generator during bipolar mode CQM test with open neutral electrode socket

Ranked causes

1. Foot switch not properly connected to BIPOLAR socket (common)
2. Foot switch malfunction or defective pedal (occasional)
3. CQM logic preventing activation with open neutral electrode in error condition (occasional)

First check

Verify foot switch is properly assigned to BIPOLAR socket

Test point: Foot switch connection, generator BIPOLAR socket
Expected: Foot switch assigned to BIPOLAR socket

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

CQM indicator not displaying for bipolar mode

CQM indicator with status 'No neutral electrode connected' does not appear on touchscreen when neutral electrode socket is open during bipolar operation

Ranked causes

1. Software or display malfunction preventing CQM status display (unknown)

First check

Ensure generator is powered on

Test point: Mains electricity connection
Expected: Generator powered

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

CQM non-split neutral electrode indicator not displaying correctly

Message box or grey indicator for non-split type neutral electrode does not display on home screen when neutral electrode cable is shorted or load resistor is connected with 5 Ω load

Ranked causes

1. Software or display malfunction in CQM monitoring for non-split electrode detection (unknown)

First check

Connect neutral electrode cable J011 to NEUTRAL socket and short-circuit at 0 Ω

Test point: [NEUTRAL] socket, neutral electrode cable J011
Expected: Cable shorted at 0 Ω resistance

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

CQM split neutral electrode indicator not displaying in green

Split type neutral electrode indicator does not display in green on home screen when neutral electrode cable is reconnected with 140 Ω load resistor

Ranked causes

1. Software or display malfunction in CQM monitoring for split electrode detection (unknown)

First check

Disconnect neutral electrode cable J011 from NEUTRAL socket

Test point: [NEUTRAL] socket, neutral electrode cable J011
Expected: Cable disconnected from socket

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

Maintenance reminder not displayed

Maintenance reminder icon does not appear on touchscreen when safety check due date is reached

Ranked causes

1. Maintenance reminder not enabled (common)

First check

Verify maintenance reminder is enabled in settings

Test point: Settings > Maintenance > Maintenance reminder
Expected: Enable button toggled on with due date set

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

Error codes

Code	Meaning	Trigger	Severity
`E0394`	Communication error	Ring communication established between LINK-IN and LINK-OUT sockets	error
`i0001`	Open circuit condition detected	High impedance load (5000 Ω) applied during Bipolar HardCoag mode at 120 W	warning

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

Community

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

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