Okin SP2-B1 AC/DC Transformer

Technical specifications

How To Tutorial

How To Replace the Okin SP2-B1 Recliner Power Supply Transformer

Replacing this Okin Phoenix Mecano SP2-B1 transformer is usually a simple plug together repair. No electrical wiring is required, but you should always work safely around powered furniture and disconnect the recliner from wall power before starting.

Before You Start

• Switch the recliner off at the wall and unplug the wall power cable.
• Take a clear photo of the old transformer, cable layout and plug connections before removing anything.
• Use safe lifting techniques when moving or tilting the recliner. Get help if the chair or lounge is heavy.
• Do not place yourself under a recliner mechanism unless the furniture is stable and safely supported.
• Check your existing wall cable and 2 pin OI recliner cable for cuts, crushing, loose plugs, heat marks or exposed wiring.

Step By Step Installation

1. Locate the old power supply transformer, usually positioned behind the recliner, underneath the chair or near the rear of the lift chair frame.
2. Unplug the figure 8 / C8 wall power cable from the old transformer.
3. Unplug the 2 pin OI recliner cable from the old transformer. This is the cable with one round pin and one flat blade style connection.
4. If the old transformer is secured to the frame using the mounting plates, remove the screws and keep them aside if they are suitable to reuse.
5. Position the new Okin SP2-B1 transformer in the same general location as the old unit, with the cable sockets easy to access and not under strain.
6. If required, fasten the mounting plates at each end of the transformer body back to the frame using suitable screws.
7. Plug the 2 pin OI recliner cable firmly into the transformer.
8. Plug the figure 8 / C8 wall power cable into the transformer.
9. Reconnect the wall power cable to the wall outlet and switch the power on.
10. Check that the green LED indicator light is on, showing that DC power is being supplied.
11. Test the recliner, lift or tilt function using the handset or switch.

Installing the 9V Emergency Backup Batteries

This transformer has a compartment for 2 x 9V batteries. Batteries are not supplied with the transformer and must be fitted separately if you want the emergency closure function available.

1. Make sure the recliner is switched off at the wall before opening the battery compartment.
2. Open the battery compartment cover on the transformer.
3. Fit 2 x standard 9V batteries, making sure the battery terminals are connected correctly.
4. Close the battery compartment securely.
5. Reconnect wall power and test normal recliner operation from mains power.

The 9V batteries are for emergency closure during a power outage only. They are not intended to run the recliner as a cordless or free standing battery operated chair. Once the emergency battery power has been used, replace the batteries. If they have not been used, replace them every 12 months, whichever comes sooner.

Important Safety and Fitment Notes

• Do not use this battery backup transformer with 2 pin splitter cables.
• Do not open the transformer casing or attempt to repair internal electrical components.
• Do not reuse damaged, crushed, loose or heat marked cables.
• Keep cables clear of moving recliner mechanisms, pinch points and sharp metal edges.
• If the recliner still does not work after fitting the transformer, the fault may be with the cable, handset, switch, junction box, actuator motor or another electrical component.

Need Help?

If you are unsure whether this is the correct replacement power supply, contact us with photos of your old transformer label, the recliner side plug and the wall side connection. We can help you check the model number, plug type and specifications before you order or install the part.

Compatible Models

Known Related and Commonly Matched Model Numbers

This Okin Phoenix Mecano SP2-B1 transformer is commonly matched against the older SP2-B labelled power supply and several related label identifiers found on electric recliners, lift chairs, tilt recliners and powered lounge furniture.

Please use the model list below as a matching guide only. Before ordering, compare your original transformer label, output rating, plug type, battery backup compartment, mounting style and physical size with this replacement.

What To Confirm Before Ordering

To help avoid ordering the wrong transformer, check that your original power supply has the same key details:

• Output rating of DC 29V 2.0A
• 2 pin OI recliner side connection with one round pin and one flat blade
• Figure 8 / C8 wall power cable socket
• Compartment for 2 x 9V emergency backup batteries
• Similar transformer body shape with mounting plates at both ends
• Approximate size of 190mm long x 72mm wide x 43mm deep

If your old unit is labelled SP2-B, this SP2-B1 version is commonly used as the current matching replacement. If you are unsure, contact us with clear photos of your original transformer label and plug connections so we can help you check before ordering.

To help avoid ordering the wrong transformer, check that your original power supply has the same key details:

• Output rating of DC 29V 2.0A
• 2 pin OI recliner side connection with one round pin and one flat blade
• Figure 8 / C8 wall power cable socket
• Compartment for 2 x 9V emergency backup batteries
• Similar transformer body shape with mounting plates at both ends
• Approximate size of 190mm long x 72mm wide x 43mm deep

If your old unit is labelled SP2-B, this SP2-B1 version is commonly used as the current matching replacement. If you are unsure, contact us with clear photos of your original transformer label and plug connections so we can help you check before ordering.

FAQs