How to Choose the Right Recliner Motor or Actuator in Australia
The motor or actuator is the mechanical heart of an electric recliner or lift chair. When it fails, the chair will not move or will move only partially. Choosing the correct replacement requires matching several key specifications to your existing motor. This guide explains what to measure and check before ordering.
What Is a Recliner Actuator?
An actuator is a linear motor that extends and retracts to move the recliner backrest, footrest or lift platform. It converts electrical energy from the power supply into mechanical movement. Most electric recliners use one or two actuators depending on whether the backrest and footrest move independently.
Key Specifications to Check Before Ordering
Stroke Length
Stroke length is the distance the actuator extends from its fully retracted position to its fully extended position. This is the most critical measurement. An actuator with the wrong stroke length will either not reach the full range of movement or will over-extend and damage the chair mechanism.
Measure the stroke length of your existing actuator by extending it fully and measuring from the inner tube to the outer tube junction, or check the label on the motor body for the stroke specification.
Overall Length
Overall length is the total length of the actuator when fully retracted. The replacement must fit within the physical space available in the chair frame. Measure from mounting hole to mounting hole with the actuator fully retracted.
Force Rating
Force rating indicates how much load the actuator can push or pull, measured in Newtons (N) or kilograms. Lift chair actuators require a higher force rating than standard recliner actuators because they must support the weight of the person in the chair during the lift cycle. Do not substitute a lower-rated actuator in a lift chair application.
Voltage
Most electric recliners and lift chairs in Australia use a 24V or 29V system. The replacement actuator must match the voltage of your chair’s control system. Check the label on the existing motor or the power supply.
Connector and Pin Type
The connector on the actuator cable must match the control box or handset connector in your chair. Common connector types include the industry-standard DIN plug used by Okin, Kaidi, Limoss and Dewert systems. Confirm the pin count and connector shape before ordering.
Single Motor vs Dual Motor Recliners
A single-motor recliner uses one actuator to move the backrest and footrest together as a linked mechanism. A dual-motor recliner uses two separate actuators so the backrest and footrest can be adjusted independently. If you are replacing one actuator in a dual-motor chair, confirm which position (backrest or footrest) the faulty motor occupies, as the stroke length may differ between the two.
How to Identify a Faulty Recliner Motor
- The chair does not move when the handset button is pressed.
- The chair moves in one direction only.
- The motor makes a grinding, clicking or straining noise during operation.
- The chair moves slowly or stops partway through the cycle.
- The motor body is visibly damaged, corroded or has a burnt smell.
Before replacing the motor, check that the handset, power supply and cables are functioning correctly. A faulty handset or power supply can produce the same symptoms as a failed actuator.
How to Measure Your Existing Actuator
- Disconnect the power supply before removing the actuator.
- Remove the actuator from the chair by releasing the clevis pins or mounting bolts at each end.
- Measure the stroke length: extend the actuator manually and measure the travel distance of the inner tube.
- Measure the overall retracted length from mounting hole to mounting hole.
- Check the label on the motor body for voltage, force rating and model number.
- Photograph the connector and cable before ordering.
Frequently Asked Questions
Can I use a universal actuator to replace my recliner motor?
Universal actuator kits are available and can replace many standard recliner motors provided the stroke length, overall length, voltage and connector match. Always confirm the specifications against your existing motor before ordering a universal kit.
What is the difference between a recliner motor and a lift chair motor?
Lift chair actuators are rated for higher force loads because they must support body weight during the lift cycle. Standard recliner actuators are not suitable for lift chair applications. Always confirm the force rating matches the chair type.
My lift chair motor is 400mm. Will a universal kit still fit?
Universal actuator kits are designed to be adjustable within a range. If your existing motor measures 400mm overall, check the kit’s minimum and maximum length specifications. In many cases the clevis pin position can be adjusted to accommodate the required length.
Do I need to replace both motors in a dual-motor recliner?
Not necessarily. If only one actuator has failed, replacing the faulty unit alone is sufficient. However, if both motors are old and one has failed, replacing both at the same time avoids a second repair in the near future.
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