1. Motor, linear actuator and massage motor are different records

A motor powers movement; a linear actuator is an assembly that produces motion in a straight line. A massage motor produces vibration rather than lifting a bed section. The control box and power supply are separate components.

LINAK’s CBH Advanced manual lists these components separately and names LA27, LA31, and LA40 actuator families. These are examples to help you read labels, not new compatibility records or recommended replacements.

Reference: LINAK: CBH Advanced systems user manual

2. Signs that may involve an actuator do not diagnose it

Record which section or side fails to move, the ordinary command and whether there is a sound. Partial movement or a noise can help support plan an assessment, but cannot distinguish a mechanical problem from controls, wiring or power.

Stop use if movement is unexpected, access is unsafe or damage is visible. Do not swap outputs, bypass controls, remove load-bearing pins or force the mechanism to test a theory.

Reference: Tempur-Pedic: Ease 4.0 owner’s manual

3. Identify the actuator without dismantling the base

From a safe accessible label, copy manufacturer, model, complete part number and revision. Record its application or location as an observation, such as the head section, without asserting the part is faulty. If the label cannot be reached safely, leave it unknown and ask service to identify it.

4. Ask which exact mechanical and control fields must match

Prepare a checklist: manufacturer, model, full part number, application, revision, connector notes, documented control-system match, electrical ratings, stroke/travel, rated load/force, and mounting details. Only enter stroke or force when the source gives that value for your exact version.

The CBH manual warns that LA27 Hall-sensor versions for CBH Advanced aren’t compatible with CBH Basic. A shared family or plug isn’t enough. Don’t copy a load rating from another version or assume it fits your system.

Reference: LINAK: CBH Advanced systems user manual

5. When not to order a motor

Wait to order if the diagnosis is unclear, the label or revision is incomplete, mounting requirements are unknown, or the part has no manufacturer-supported application for your system. A similar seller photo won’t answer those questions.

Send your checklist to the base manufacturer or a qualified technician. Ask them to confirm the part, installation work, and any required setup. This guide doesn’t provide technician-only mounting or initialization instructions.

6. Repair and replacement are separate decisions

If a confirmed fault has a documented replacement, retain the source and all conditions with the repair proposal. If no part path is documented, ask support what remains possible. Unknown availability does not prove the base cannot be repaired.

Consider whole-base replacement only after establishing the relevant practical limitation. A motor label never creates an automatic base or mattress purchase recommendation.

Sources & References

These documents apply to the systems they name. Use the symptom tables to plan your next check rather than to diagnose a fault or repair a different brand’s bed.

  • LINAK: CBH Advanced systems user manual

    Pages 4–6, 12 and 20 distinguish actuators, control units, supplies and massage motors; LA27 sensor variants have system restrictions. OEM/system-manufacturer manual, not an end-user repair procedure or a replacement recommendation.

  • Tempur-Pedic: Ease 4.0 owner’s manual

    Moving-mechanism and model-specific safety context; no forced lowering or electrical repair steps.

Replacement examples link to the reviewed records for those parts. Read our evidence methodology.

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