Patient lifts · Viking family

Liko Viking XL: troubleshooting and error codes

The ServiceForge knowledge base holds 27 documented symptoms for the Liko Viking XL, with 52 ranked causes, 58 diagnostic checks with test points and expected values, and 0 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Lift does not work up/down with operation panel patient safety

Lift fails to move vertically when control buttons on operation panel are pressed

Ranked causes

1. Emergency stop activated (common)
2. Battery not assembled correctly (common)
3. Charging cable connected to mains (common)
4. Fault in control box output channels or motors (occasional)
5. Battery depleted (common)

First check

Verify emergency stop is not activated

Test point: Emergency stop button
Expected: Button released and not engaged

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

Lift does not work up/down with HandControl IR patient safety

Lift fails to move vertically when HandControl IR remote is used

Ranked causes

1. Hand control battery depleted or contact defective (common)
2. Charging cable connected to mains (common)
3. Battery depleted (common)
4. Hand control cable not connected correctly (occasional)

First check

Verify charging cable not connected to mains

Test point: Charging cable
Expected: Cable disconnected from outlet

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

Base-width adjustment does not work in/out with Hand Control patient safety

Base width control via wired Hand Control fails to move base in or out

Ranked causes

1. Charging cable connected to mains (common)
2. Battery depleted (common)
3. Hand control cable not connected correctly (occasional)

First check

Verify charging cable disconnected from mains

Test point: Charging cable
Expected: Cable removed from outlet

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

Base-width adjustment does not work in/out with HandControl IR patient safety

Base width control via HandControl IR remote fails to move base in or out

Ranked causes

1. Charging cable connected to mains (common)
2. Battery depleted (common)
3. Hand control battery contacts defective (occasional)

First check

Verify charging cable disconnected from mains

Test point: Charging cable
Expected: Cable disconnected from outlet

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

Base-width adjustment does not work in/out with operation panel patient safety

Base width control via operation panel fails to move base in or out

Ranked causes

1. Charging cable connected to mains (common)
2. Battery depleted or not properly attached (common)
3. Hand control cable not connected correctly (occasional)

First check

Verify charging cable not connected to outlet

Test point: Charging cable
Expected: Cable disconnected from mains

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

Charger does not work

Charging cable connected but battery does not charge

Ranked causes

1. Charging cable not correctly connected (common)
2. Poor contact between control box and battery (occasional)
3. Control box charging output faulty (occasional)

First check

Verify charger cables are connected correctly

Test point: Charger cable connectors
Expected: Cable fully seated at control box and mains outlet

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

Lift does not work up/down with Hand Control patient safety

Lift fails to move vertically when wired Hand Control is used

Ranked causes

1. Charging cable connected to mains (common)
2. Battery depleted (common)
3. Hand control cable not connected correctly (occasional)

First check

Verify charging cable not connected to mains

Test point: Charging cable
Expected: Cable disconnected from outlet

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

Lift remains in elevated position patient safety

Lift stops in raised position and cannot be lowered

Ranked causes

1. Emergency stop button activated (common)
2. Battery is discharged (common)
3. Electrical emergency lowering system failure (occasional)

First check

Verify emergency stop is not activated

Test point: Emergency stop button
Expected: Button in normal position

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

No charging function caution

CBL20 battery does not charge when charger is connected to mains

Ranked causes

1. Poor contact between control box and battery (common)
2. Control box charging circuit defective (occasional)
3. Battery defective or depleted (occasional)

First check

Remove battery and observe green LED; reinsert battery

Test point: Control box green LED and battery contacts
Expected: Green LED turns off then restarts automatically when battery reinserted

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

Unit does not power on or respond to controls patient safety

Lift does not work up/down, width adjustment does not work in/out

Ranked causes

1. Emergency stop button activated (common)
2. Cables incorrectly connected (common)
3. Battery contact plates defective or broken (occasional)

First check

Verify emergency stop button is not activated

Test point: Emergency stop button
Expected: Not activated

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

Battery will not charge caution

Charging does not work when charger is connected

Ranked causes

1. Charger cable connected to wall socket incorrectly (common)
2. Battery contact plates defective or broken (occasional)

First check

Verify charger is connected to wall socket

Test point: Charger cable connection
Expected: Cable firmly connected to wall outlet

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

Lift arms up/down or base width function does not work patient safety

Control panel buttons do not respond for actuator or base motor functions on CBL20 control box

Ranked causes

1. Actuator or base motor cable in wrong position (common)
2. Control box output channel or motor failure (occasional)

First check

Push control buttons on operation panel for actuator and base motor

Test point: Operation panel buttons at control box
Expected: Both actuator and base motor functions respond

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

Actuator wear or damage patient safety

Visual inspection reveals wear, cracks, or deformation on actuator and outer tube

Ranked causes

1. Actuator end-of-life after 700-1020 Ah usage (common)

First check

Inspect actuator and outer tube for wear, cracks or deformation

Test point: Actuator and Outer Tube
Expected: No visible wear, cracks, or deformation

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

Armrest does not rotate freely or fails load test patient safety

Armrest rotates with resistance, hangs at angle when not in use, or sags under 40 kg load

Ranked causes

1. Armrest pivot joint wear or lack of lubrication (occasional)

First check

Verify armrest hangs vertically at rest

Test point: Both armrest positions
Expected: Both arms hang vertically downward

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

Base moves with jerking or peculiar noises

Unusual sounds or vibrations heard during base in/out operation with maximum load

Ranked causes

1. Base motor linkage wear or lubrication issue (occasional)

First check

Inspect lift arm and actuator plastic bushings for wear

Test point: Lift arm bolts and actuator hardware
Expected: No visible wear, cracks or deformation; smooth operation after lubrication
Tools: Visual inspection, lubrication grease

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

Battery capacity indicator does not respond caution

Pressing battery capacity button produces no LED indication on battery

Ranked causes

1. Battery depleted or defective (common)

First check

Push battery capacity button and observe LED

Test point: Battery top indicator LEDs
Expected: At least one of three LEDs illuminates

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

Battery operating time noticeably reduced

Lift operates for significantly shorter duration than normal before battery depletion

Ranked causes

1. Battery capacity degraded or battery cells failed (common)

First check

Check battery capacity indicator

Test point: Battery capacity display (press i button)
Expected: Green light = >50% capacity; Yellow = 25-50%; Yellow = 0-25%
Tools: Battery capacity indicator button

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

Charger lamp does not blink green or charging incomplete

Charger indicator lamps show abnormal blink pattern or do not indicate completed charge

Ranked causes

1. Battery not fully charged or charger malfunction (occasional)

First check

Observe charger lamp sequence during charging cycle

Test point: Charger indicator lamps
Expected: Lamps blink alternately yellow/yellow/green during charge; blinking green when complete

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

Emergency lowering does not function patient safety

Load fails to lower when emergency lowering mechanism is activated

Ranked causes

1. Emergency handle stuck or actuator collar not turning freely (occasional)

First check

Test emergency lowering with 50 kg load

Test point: Red emergency handle (or actuator collar)
Expected: Load descends smoothly when handle lifted or collar turned kg

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

Flexlink wear detected caution

Flexlink exhibits excessive wear measured beyond tolerance on repeated cycles

Ranked causes

1. Flexlink worn beyond 3 mm tolerance (common)

First check

Measure Flexlink wear with sliding caliper

Test point: Flexlink exposed wear area
Expected: Wear dimension M = X - 3 mm or less, max 3 mm
Tools: Sliding caliper

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

Hand control has no function but control panel functions OK patient safety

Hand control does not respond while control box panel buttons work normally

Ranked causes

1. Battery contact plates defective or broken in hand control (common)

First check

Inspect battery contact plates in hand control

Test point: Hand control battery contacts
Expected: Contacts intact and not broken

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

Incorrect current limit programmed in CBL20 patient safety

Power limit settings for lifting or widening motion do not match model requirements

Ranked causes

1. Wrong CLIM_1 or CLIM_2 value set during commissioning or service (occasional)

First check

Verify CLIM_1 (lifting motion power limit) setting in CBL20

Test point: CBL20 CLIM_1 parameter
Expected: 8.0 [A] for Viking XL

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

Lift stuck in high position patient safety

Lift unable to lower from maximum height position

Ranked causes

1. Charging cable connected during operation (unknown)

First check

Verify charging cable is disconnected

Test point: Charging cable
Expected: Cable removed from mains outlet

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

Rear castors not locking or rolling freely patient safety

Rear wheels rotate when brake should be engaged or move unexpectedly during operation

Ranked causes

1. Rear brake mechanism worn or disengaged (occasional)

First check

Verify rear brake locks in all directions

Test point: Rear brake engagement
Expected: Brakes engage firmly; wheels do not roll in any direction when locked

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

Slingbar does not fall freely to lowest position caution

Slingbar remains elevated or moves with resistance when released from raised position

Ranked causes

1. Slingbar centerbolt too tight or slingbar binding (occasional)

First check

Check slingbar bolt for wear

Test point: Slingbar centerbolt and bearing
Expected: Bolt and bearing show no excessive wear; pivot moves freely

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

Unusual sounds during operation caution

Abnormal noises heard when lift operates

Ranked causes

1. Unknown cause requiring manufacturer support (unknown)

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

Unusual sounds heard during operation caution

Lift produces abnormal noises during up/down or width adjustment movement

Ranked causes

1. Worn or damaged mechanical components (unknown)

First check

Visually inspect all moving parts

Test point: All actuators, motors, gears, and fasteners
Expected: No visible damage, wear, or looseness

1 corrective action and part numbers 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.