Hospital beds · Multicare family

Linet Multicare: troubleshooting and error codes

The ServiceForge knowledge base holds 25 documented symptoms for the Linet Multicare, with 32 ranked causes, 25 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

Main control box overheated caution

Main control box heat sink temperature has exceeded safe operating threshold

Ranked causes

1. Heat sink temperature 85°C (occasional)
2. Heat sink temperature 100°C (occasional)
3. Heat sink temperature 115°C (rare)

First check

Monitor main control box heat sink temperature

Test point: Heat sink on main control box
Expected: Below 85°C, <85

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

Calibration: Scale module

Scale calibration procedure after scale module replacement or tensometer replacement to set gravitational constant and voltage values

Ranked causes

1. Scale module replaced (common)
2. Tensometer replaced (common)

First check

Test point: Control panel
Expected: Enter 5-digit code (last numbers of date and time)

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

Column operation noise or rough movement patient safety

Column units producing undesirable sounds or not moving smoothly in tilt or rotation

Ranked causes

1. Column screws loose or undertightened (common)
2. Column mechanism requires lubrication (occasional)

First check

Check column screws with torque wrench

Test point: M8 column screws
Expected: 10 Nm
Tools: torque wrench

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

Electrical cable damage or loose attachment high voltage

Main power cable or conduit damaged, missing, or not properly secured

Ranked causes

1. Electrical cable physically damaged (rare)
2. Cable conduit loose or incorrect attachment (occasional)

First check

Visually inspect main power cable

Test point: main power cable
Expected: undamaged

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

Operation check: Castor damage or malfunction patient safety

Castors not operating smoothly, making noise, or showing physical damage

Ranked causes

1. Castor tread damaged or worn (common)
2. Castor fixing screws loose (common)

First check

Visually inspect castor tread

Test point: castors
Expected: undamaged

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

Power box transformer overheated caution

Main control box transformer temperature has exceeded safe operating threshold

Ranked causes

1. Transformer temperature 100°C (occasional)
2. Transformer temperature 130°C (rare)

First check

Monitor transformer temperature in main control box

Test point: Transformer on main control box
Expected: Below 100°C, <100

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

Activation required

Keypad or touchscreen is inactive and requires activation

Ranked causes

1. Keypad or touchscreen not activated (common)

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

Automatic lateral therapy running – positioning disabled

Bed positioning is disabled while automatic lateral therapy is active

Ranked causes

1. Automatic lateral therapy (ALT) is running (common)

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

Backrest angle and lateral tilt conflict

Backrest raised above 30° or lateral tilt above 15°, limiting the other adjustment

Ranked causes

1. Backrest angle and lateral tilt interlock constraint (common)

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

Bed and floor collision prevention triggered patient safety

System has detected potential collision between bed and floor in tilted position

Ranked causes

1. Bed frame or components obstruct floor clearance (common)

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

Bed loaded with more than 150 kg – lateral tilt limited

Informational message that lateral tilt is restricted to 15° when bed weight exceeds 150 kg

Ranked causes

1. Normal operating limitation at high load (common)

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

Calibration: Scale weighing system

Scale module calibration procedure for Multicare hospital bed following replacement of scale module or tensometers. Involves setting gravitational constant, factory zero, load calibration at 80 or 160 kg, and sensor constant recalibration.

Ranked causes

1. Scale module or tensometer replaced (common)

First check

Verify bed is empty and horizontal before factory zero

Test point: Bed
Expected: Empty and in horizontal position

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

Calibration: Switch between kg/lb units

Enable kg/lb switching on beds with serial number 2014xxxxxx and higher. Only applicable to beds for U.S. market. Default is kg weighing.

Ranked causes

1. Need to enable kg/lb unit switching on U.S. market bed (occasional)

First check

Verify bed serial number is 2014xxxxxx or higher

Test point: Bed serial number plate
Expected: Serial number 2014xxxxxx or higher

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

Function cannot be activated on battery power

Requested function is not available when bed is running on battery

Ranked causes

1. Bed is powered by battery (common)

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

Function locked

User interface indicates function is locked and cannot be activated

Ranked causes

1. Function lock is active (common)

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

Function stopped due to possible collision in lateral tilt patient safety

Bed lateral tilt movement was stopped to prevent collision hazard

Ranked causes

1. Collision detected during lateral tilt (occasional)

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

Horizontal position reached during tilting

Bed has reached horizontal position limit during tilt adjustment

Ranked causes

1. Bed tilt range limit reached (common)

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

Lateral tilt adjustment by foot control at maximum 15°

Informational message indicating lateral tilt foot control is limited to 15 degrees

Ranked causes

1. Normal operating limitation (common)

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

Malfunction of bed movement protection caution

Bed movement protection system has malfunctioned after one movement cycle

Ranked causes

1. Electrical components of bed protection system have failed (occasional)

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

Maximum load exceeded patient safety

Bed weight capacity has been exceeded

Ranked causes

1. Patient and equipment weight exceeds bed rating (common)

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

One fault state – protection from mains fault high voltage

Mains LED flashing indicates single-fault protection is active; only one bed movement possible then all functions blocked

Ranked causes

1. Single-fault condition detected in power system (occasional)

First check

Observe mains LED status

Test point: Mains LED indicator
Expected: Solid on (normal) or flashing (fault protection active)

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

Patient transfer activated – lateral tilt limited

Informational message that lateral tilt is limited to 15° during patient transfer mode

Ranked causes

1. Patient transfer mode is active (common)

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

Potentiometer malfunction caution

Column unit potentiometer has failed and is not responding correctly

Ranked causes

1. Potentiometer in column unit has failed (occasional)

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

Siderails folded down – lateral tilt disabled patient safety

Lateral tilt adjustment is disabled because siderails are in folded position

Ranked causes

1. Siderails are folded down (common)

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

X-Ray cassette holder not inserted correctly

System detects X-Ray cassette holder is not properly seated in the bed

Ranked causes

1. X-Ray cassette holder not properly inserted (common)

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

Error codes

Code	Meaning	Trigger	Severity
`Code 1`	System fault during standard mode	System detects fault condition while bed is in normal operating mode	error
`Code 2`	System fault during ALT (Automatic lateral therapy)	System detects fault condition while automatic lateral therapy is running	error

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.