Surgical lights · Visum family

Stryker Visum LED 2: troubleshooting and error codes

The ServiceForge knowledge base holds 16 documented symptoms for the Stryker Visum LED 2, with 24 ranked causes, 27 diagnostic checks with test points and expected values, and 5 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

One or both lights malfunctioning

Light units not operating properly, reduced output or no response to controls

Ranked causes

1. Loose electrical connections (common)
2. Malfunctioning wall control panel (occasional)
3. Malfunctioning power supply box (occasional)
4. Malfunctioning electronics board in light (rare)

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

Half of light head not functioning

One half of the dual light head is dark or not illuminating while other side operates

Ranked causes

1. One or more cables not securely connected (common)
2. Loose connections at Power Supply Box (common)
3. Malfunctioning Suspension or Spring Arm (occasional)

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

Surgical light will not power on

Light does not turn on when activated; no response from system

Ranked causes

1. One or more cables not securely connected (common)
2. Main power switch not on power supply box (common)
3. System not connected to power source (occasional)

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

System is stiff or difficult to maneuver

Surgical light system has become noticeably harder to move and reposition during normal operation.

Ranked causes

1. Friction brakes are over-tightened at one or more joints (occasional)
2. Joints require greasing due to lack of lubrication or wear (occasional)

First check

Assess system maneuverability

Test point: Full system assembly at all joints
Expected: System moves smoothly with light resistance

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

Flat panel cable cover fastening for teacup installation

Dual suspension flat panel cable cover requires proper fastening to the lowest extension arm during teacup installation using specified screws.

Ranked causes

1. Flat panel cable cover fastening procedure during installation (unknown)

First check

Identify suspension type (SHA or EHA)

Test point: Suspension configuration
Expected: Suspension type identified

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

Light continues to move after positioning patient safety

Light head does not stop moving when positioned; continues drift or motion

Ranked causes

1. Brakes or Spring Arm need adjustment (common)

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

M3 safety segment cover screw loose or improperly installed patient safety

Safety segment cover screw at joint where cardanic suspension meets spring arm is not properly tightened, creating risk of cover sliding and light head falling.

Ranked causes

1. M3 screw not installed or tightened properly at safety segment cover (occasional)

First check

Locate M3 safety segment cover screw

Test point: Safety segment cover at cardanic suspension and spring arm joint
Expected: M3 screw present and visible

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

Power supply box requires replacement high voltage

Power supply box is non-functional or damaged and must be replaced with a new unit.

Ranked causes

1. Power supply failure or damage (unknown)

First check

Verify main switch is OFF

Test point: Power supply box main switch
Expected: OFF

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

Rear end spring arm cover replacement

Rear end spring arm covers require replacement and must be properly installed to ensure spring arm functions correctly.

Ranked causes

1. Spring arm covers are worn, damaged or need replacement (unknown)

First check

Separate old spring arm covers

Test point: Rear end spring arm covers
Expected: Old covers removed without damaging spring arm

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

Service LED on; Intensity Level Indicator not working properly

Service LED illuminated but intensity control display not responding or showing incorrect levels

Ranked causes

1. System requires service; malfunctioning component (rare)

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

SIDNE not controlling lights

SIDNE integration system cannot operate or communicate with light fixtures

Ranked causes

1. Connecting cable loose (common)

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

Some reflector assemblies not functioning

One or more light reflectors not producing illumination or at reduced brightness

Ranked causes

1. Malfunctioning electronics board (occasional)

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

Spring arm cuff loose or improperly installed at low ceiling configuration caution

Cuff at joint where cardanic suspension meets spring arm is not properly installed in low ceiling configuration.

Ranked causes

1. Low ceiling spring arm cuff not installed or seated properly (occasional)

First check

Locate spring arm cuff at cardanic suspension joint

Test point: Joint where cardanic suspension meets spring arm
Expected: Cuff present and visible

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

Surgical light will not power off

Light continues to operate and cannot be switched off by control

Ranked causes

1. System requires service; malfunctioning electronics board (rare)

First check

Check wall control Service LED status

Test point: Service LED indicator on wall control panel
Expected: LED off or not illuminated if functioning normally

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

System drifts during operation patient safety

Surgical light system drifts or moves when not being manipulated by the operator.

Ranked causes

1. Friction brakes at movable joints are loose or insufficiently tightened (common)

First check

Observe system movement at rest

Test point: Full system assembly
Expected: System remains stationary; no drift

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

Wall control panel requires replacement high voltage

Wall control panel is non-functional or damaged and must be replaced with a new unit.

Ranked causes

1. Control panel failure or damage (unknown)

First check

Verify main switch is in OFF position

Test point: Power supply box main switch
Expected: OFF

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

Error codes

Code	Meaning	Trigger	Severity
`Communication Error with Light`	Loss of communication between wall control and light fixture(s)	No LEDs illuminate while Service LED flashes	error
`Light Error`	One or more light units have malfunctioned or failed to respond	LEDs 4 & 8 blink while Service LED illuminates	error
`Light Sync Error`	Light synchronization failure between fixtures or control system	LEDs 3, 4 & 5 blink while Service LED illuminates	error
`Light Warning`	Non-critical system warning indicating potential issue requiring attention	All LEDs illuminate while Service LED flashes	warning
`System Not Installed`	System hardware not properly installed or not detected by control panel	Service LED flashes while intensity LEDs do not illuminate	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.