Buy Theorem HSW305-B-PT 5-Button Handset with USB & Heat

Theorem HSW305-B-PT handset

This Theorem HSW305-B-PT listing describes a five-button handset with USB, headrest adjustment, chair up/down controls and a heat button for compatible Theorem electric recliners and lift chairs. Match each icon and function with the original handset rather than choosing by chair brand alone.

Check compatibility before ordering

• Compare the full HSW305-B-PT reference, five-button layout, headrest and heat controls, USB opening, handset shape and the original cable connector.
• Other Theorem HSW-series handsets can have different functions and button layouts. Matching appearance alone does not establish interchangeable wiring.
• Switch off and unplug the chair before replacing a matching handset. Photograph the existing connection and cable route, follow the chair maker's instructions and avoid pulling the wires or forcing the connector. If unsure, consult a qualified repairer.

Frequently asked questions

How many buttons are listed? Five. The listing identifies headrest, chair up/down and heat functions, plus USB.

Is this wireless? Wireless operation is not verified for this model; compare your original handset and connector.

Will any Theorem handset work? No universal fit is confirmed. Compare the complete model and every control function before ordering.

Recliner Replacement Parts Manual - FAQ’s 

Do you stock Pegar recline parts?

No unfortunately. Pegar handles have been obsolete for many years and we don’t stock any cables suitable.

How do you measure a recliner spring?

Recliner springs are measured by the overall length. You’ll find a break down of each recliner spring on each of the products pages. Simply click or tap on the “Measuring” tab.

Can I get a different shade brown?

No. There is only 1 colour brown available worldwide. There is no choice what shade of brown it is sorry.

My recliner handle measures 113mm x 70mm. Will your handles still fit?

Yes. There can be a couple mm tolerances in the measurements given.

My recliner handle measures 11cm x 7cm. Will your handles still fit?

Yes. Converted to millimetres is 110mm x 70mm.

How do you measure a recliner cable? You need to remove the trigger and cable from the recliner, disconnect the cable from the handle and use the Cable Cheat Sheet that is on the website.

How do I measure a recliner cable?

Click or Tap on the “Measuring” tab on the products page and follow the Cable Cheat Sheet to measure your cable correctly. Make sure you disconnect your cable from the handle before measuring. If you cable has broken the barrel off of the end, simply add that measurement, 3.5 or 6mm to the overall length measurement.

Can I pick up from your Coolum Beach Warehouse?

Yes you may click and collect. Best you email prior to make sure someone is in. Cash Only or order online and select “Pick Up From Coolum Beach” during checkout

Replacement Parts

CouchGuard supplies replacement parts for recliners, lift chairs and lounges, including electrical and mechanical components. Use the guidance below to help identify the correct part before ordering.

Price Match Guarantee

Found the same replacement part for a lower price from another Australian supplier? CouchGuard’s Price Match Guarantee applies to all part brands and types.

We compare the complete delivered price, not just the advertised part price. This means we compare the competitor’s part price plus delivery with CouchGuard’s part price plus delivery.

What qualifies?

• The competitor’s item must be the identical replacement part.
• The part must be currently in stock and available to purchase.
• The competitor must be an Australian supplier.
• The comparison must use the complete delivered price, including delivery charges.

How to request a price match

Have a link to the competitor’s product page ready so we can verify the part, availability, price and delivery charge. Call us on 1300 268 244, or contact us by email.

Before You Buy a Replacement Part

Replacement parts can look similar while having different model numbers, dimensions, connectors or mounting points. Before ordering:

• Check the original part for a manufacturer label, model number or part number.
• Compare the connector type, dimensions and mounting points with the product listing.
• Check the product description and compatibility guidance carefully.
• Contact CouchGuard with clear photos if you are unsure which part you need.

Additional Checks for Electrical Parts

• Check that the green light on the power supply is on.
• Check the leads and connections for visible damage.
• Check whether the switch is faulty.
• If possible, test the actuator in another compatible recliner.

These checks may help identify the fault, avoid replacing a working part and save you hundreds of dollars.

Selected Product Warranties

The following warranties apply to the listed products:

• 24-month warranty on all compatible actuators.
• 24-month warranty on all genuine Okin and TiMOTION actuators.
• 12-month warranty on all genuine Kaidi, eMoMo and Mulin actuators.
• 24-month manufacturer warranty on 6000mAh and 3950mAh batteries purchased on or after 11 September 2026.
• 12-month manufacturer warranty on the 2550mAh battery pack.

All actuators supplied by CouchGuard are tested by the manufacturer before leaving its facility. If a defect becomes apparent, contact us promptly with your order details so we can assess the product under the applicable warranty.

Warranty coverage is subject to our Purchase Terms and your rights under Australian Consumer Law.

Reach out to our team today by calling 1300 268 244 or emailing info@couchguard.com.au