Hospital beds · CareAssist family

Hill-Rom CareAssist: troubleshooting and error codes

The ServiceForge knowledge base holds 22 documented symptoms for the Hill-Rom CareAssist, with 56 ranked causes, 99 diagnostic checks with test points and expected values, and 6 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

No functions work patient safety

Pendant and caregiver siderail controls do not respond; no bed movement or operations possible

Ranked causes

1. AC power fuses blown or interface PC board in-line fuse serviceable (common)
2. Cable disconnection on AC power or motor control PC board (common)
3. AC power cable not plugged in correctly (common)
4. Power outlet not functioning (occasional)
5. AC power cable damaged (occasional)
6. No AC voltage at transformer connection (occasional)
7. Interface PC board failure (occasional)
8. Patient pendant or siderail control failure (occasional)

First check

Verify AC power fuses and interface PC board in-line cable fuse

Test point: AC power fuses, interface PC board in-line fuse
Expected: Serviceable (not blown)

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

Battery backup not functioning caution

Bed loses power or does not operate when unplugged from AC power, or battery does not hold charge. Battery status indicator may not show charging or backup is unavailable.

Ranked causes

1. Battery expired or aged beyond 3 years (common)
2. Control unit malfunction or disconnected (occasional)
3. Battery disconnected or poorly connected (common)
4. Battery not charging properly or battery defective (occasional)
5. Power supply or motor control P.C. board failure (rare)

First check

Inspect battery date and age

Test point: Battery date marking
Expected: Battery manufactured within 3 years of current date

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

CPR malfunction patient safety

CPR (cardiopulmonary resuscitation) function not working; head section motor does not respond or release cable malfunction

Ranked causes

1. Damaged or missing mounting hardware on head section motor release mechanism (common)
2. Broken or damaged release cable (occasional)
3. Release cable adjustment incorrect (occasional)
4. Head section motor or release cable subassembly failure (rare)

First check

Inspect head section motor release mechanism hardware

Test point: Release mechanism attachment points
Expected: All hardware secure and not damaged

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

Foot section does not move or moves incorrectly caution

Foot section fails to extend or retract when controls activated, or moves intermittently. Knee or thigh section may be affected if motors are cross-connected.

Ranked causes

1. Control unit malfunction or disconnected (common)
2. Foot motor intermediate switch malfunction (occasional)
3. Foot motor intermediate switch open or short-circuited (occasional)
4. Power supply or motor control board failure (rare)

First check

Verify at least one other function is working

Test point: Any bed function other than foot section
Expected: At least one other function operates normally

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

SafeView alerts malfunction patient safety

SafeView alert lights flash, are on, or do not activate; yellow and green light indicators not working

Ranked causes

1. Both alerts flash yellow and green (common)
2. Only one alert flashes yellow and green (common)
3. Only one alert is on (common)
4. Alerts do not come on when bed plugged in (common)

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

Bed brake detection malfunction with AC power connected patient safety

Bed does not respond to brake detection when AC power is connected. Detection system fails or gives false indication of brake status. In-room alarm or alert may display.

Ranked causes

1. Brake detection switch connector disconnected or misaligned (common)
2. Brake detection switch malfunction or defective (occasional)
3. Foot column cable misconnection or poor connection (occasional)

First check

Verify hilow function works

Test point: Bed height adjustment
Expected: Bed raises and lowers normally

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

Bed connected to AC power, brakes not applied detection malfunction caution

Brake detection switch does not respond correctly when bed is powered and brakes applied

Ranked causes

1. Foot column cable connections or brake detection switch continuity fault (common)
2. Motor control board or power supply connector fault (occasional)
3. Power supply or motor control board failure (rare)

First check

Verify foot column cable connections and brake detection switch

Test point: Terminals 1 and 6 of foot column, 8-pin connector in central rail
Expected: Connections secure and switch continuity correct

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

Head section does not move caution

Head section fails to raise or lower when controls are activated. Head Up or Head Down control buttons have no effect on head section position.

Ranked causes

1. Head section control unit malfunction or disconnected (common)
2. Head section motor malfunction or disconnected (occasional)
3. Power supply malfunction or failure (occasional)

First check

Verify at least one other function is working

Test point: Any bed function other than head section
Expected: At least one other function (hi-lo, foot, etc.) operates normally

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

Knee section malfunction patient safety

Knee section does not respond to controls or moves incorrectly

Ranked causes

1. Faulty knee section control (common)
2. Faulty knee section motor (common)
3. Power supply or motor control PC board failure (occasional)

First check

Verify at least one other function operates correctly

Test point: Other bed functions
Expected: At least one function works

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

Lockout malfunction patient safety

After pressing lockout button, no indicators flash

Ranked causes

1. Siderail cable connection incorrect in interface box or power supply (common)
2. Faulty siderail interface PC board (occasional)
3. Faulty caregiver siderail control panel (occasional)

First check

Verify at least one other function operates correctly

Test point: Other bed functions
Expected: At least one function works

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

Braking malfunction patient safety

Bed brakes do not hold when applied; casters do not lock when brake/steer bar is in brake position

Ranked causes

1. Damaged, loose or missing caster attachment screws or supports (common)
2. Caster lock mechanism failure (occasional)

First check

Inspect caster attachment hardware

Test point: Caster attachment screws and supports
Expected: All screws secure and supports not damaged or missing

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

Hilow malfunction patient safety

Bed hilow section does not operate when controls are actuated

Ranked causes

1. Faulty hilow column motor or connector loose (common)
2. Power supply or motor control PC board failure (occasional)

First check

Verify at least one other function is working

Test point: Other bed functions
Expected: At least one function operates

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

Steering malfunction caution

Bed steering does not work correctly; foot left caster does not lock in lengthways direction when brake/steer bar is in steer position

Ranked causes

1. Damaged, loose or missing caster attachment screws or supports (common)
2. Caster steering mechanism failure (occasional)

First check

Inspect caster attachment hardware

Test point: Caster attachment screws and supports
Expected: All screws secure and supports not damaged or missing

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

Trendelenburg/Reverse Trendelenburg function does not work caution

Bed does not tilt head down or feet down when Trendelenburg/Reverse Trendelenburg controls are activated. Bed remains in flat position.

Ranked causes

1. Caregiver control unit malfunction or disconnected (common)
2. Power supply or motor control board failure (occasional)

First check

Verify hilow function works

Test point: Bed height adjustment
Expected: Bed raises and lowers normally

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

Battery replacement on A Model beds caution

Battery backup system requires polarities respected during installation to avoid power supply P.C. board damage

Ranked causes

1. Battery polarities reversed during installation (common)

First check

Verify correct polarity during battery installation

Test point: Battery connection points
Expected: Red wire connected last with spark observed

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

Calibration: SafeView Alerts light assembly configuration

Configuration procedure to set which siderails must be up for lights to display green.

Ranked causes

1. Initial system configuration needed after installation (common)

First check

Position siderails for desired configuration

Test point: Two head-end siderails and optionally one or both foot-end siderails
Expected: All configured siderails in up position

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

Calibration: Scale patient safety

Bed scale requires calibration to ensure accurate weight measurement. Performed after load beam replacement or scale board service.

Ranked causes

1. Load beam replaced or scale P.C. board changed (common)

First check

Verify sleep deck is flat

Test point: Bed surface
Expected: Flat position

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

CPR cable removal and replacement patient safety

CPR cable system requires correct routing and tension adjustment to prevent patient injury

Ranked causes

1. CPR cable incorrect routing or tension (common)

First check

Route CPR cable through head section guide correctly

Test point: Head section guide bracket, handle connections
Expected: Right side cable to right handle, left side to left handle

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

Head section motor removal and replacement high voltage

Motor replacement procedure requiring polarity reversal, connector disconnection, and cable adjustment

Ranked causes

1. Head section motor defective (unknown)

First check

Set brakes and raise sleep surface to highest

Test point: Bed controls
Expected: Sleep surface fully raised, brakes engaged

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

Knee section motor removal and replacement high voltage

Motor replacement procedure on knee section with power supply access dependent on A or B model

Ranked causes

1. Knee section motor defective (unknown)

First check

Set brakes and raise sleep surface to highest

Test point: Bed controls
Expected: Sleep surface fully raised, brakes engaged

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

SafeView Alerts lights flash yellow and green after installation

Lights display incorrect color pattern (yellow and green flashing) after new light assembly installation, indicating a technical problem.

Ranked causes

1. Incorrect part installation or cable connection (common)

First check

Verify light assembly bracket alignment and screw installation

Test point: Light assembly bracket (H) screw holes to bed end
Expected: Screw holes aligned and all three screws (I) installed

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

Scale P.C. board replaced patient safety

Replaced scale P.C. board requires calibration. Scale display will show kilograms until calibrated and converted to pounds.

Ranked causes

1. Scale P.C. board changed (occasional)

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

Error codes

Code	Meaning	Trigger	Severity
`Scale Error 2`	Scale error condition on C model and newer beds	Scale measurement or calibration failure	unknown
`Scale Error 3`	Scale error condition on C model and newer beds	Scale measurement or calibration failure	unknown
`Scale Error 4`	Scale error condition on C model and newer beds	Scale measurement or calibration failure	unknown
`Scale Error 5`	Scale error condition on C model and newer beds	Scale measurement or calibration failure	unknown
`Service Required LED Flashes`	Service required indicator active on C model and newer beds	System condition requiring technician service	warning
`Siderail Detection Switch Malfunction`	Siderail detection switch failure on F model beds	Siderail switch not detecting position or stuck	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.