How Is the Heated Backrest Attached, and Can It Come Loose?

The heated backrest is not a cushion, pad or panel fastened inside the bathing area, so there is no bracket, strap or screw of its own to work loose. The seat and the backrest are warmed by electric heater pads that sit behind the thick acrylic of the tub shell, wired to a heater control box and switched by their own button on the deck, and the option is built into the tub at the factory when the tub is configured. Heated Seat and Back: How It Works, Which Tubs Offer It, and How to Add It to Your Order covers choosing the option; this page explains what is physically there, why it stays put, and what to look at if something on your tub does feel loose.

What the Heated Backrest Actually Is

The surface you lean against is the tub itself. The heated seat and back option warms the seat and the backrest surfaces so the acrylic is comfortable to the touch when you sit down, taking the initial chill off the tub while you wait for it to fill, which is the moment most bathers feel cold. The warmth comes from heating pads that sit behind the tub surface. The seat and the backrest each have their own pad, and because the acrylic is thick, the surface takes time to feel warm after the pad itself has heated. That is why the heated seat video says to turn it on 10 to 15 minutes before you enter the tub for maximum comfort. Press the button once and the heated seat activates; it turns off automatically after 20 minutes, and if you would like it back on you just push the button again.

It is easy to confuse with the in-line water heater, which is part of a hydro massage package and maintains the temperature of the bath water as it circulates through the jets. The in-line heater does not warm the seat, and the heated seat does not warm the water. Walk-In Tub Therapy Options and Features lists the heated seat and backrest, ozone sterilization and LED chromotherapy lighting as the features that can be added beyond the jetting package.

Why Nothing Inside the Tub Can Work Loose

Because the pads live behind the surface rather than on it, there is nothing in the bathing area to shift, peel or rattle. You never see the pads from inside the tub, you never sit on a separate element, and the acrylic you touch is the same shell as the rest of the tub. This is also why the option is chosen when the tub is configured and built at the factory rather than attached afterward: it is listed as its own add-on, it should appear on your order confirmation, and every tub is tested before it ships. The option is offered on every Ella sit-down walk-in tub, including the two-seat Companion and the wheelchair-accessible Transfer family up to the TransferXXL, and it pairs with any therapy package. The lay-down models are a different design, so ask the team directly if you are considering a LayDown.

Ella does not publish wear information on how the pads hold up over the years, so this page will not claim a figure. What is published is the support path: if the seat or backrest stops warming, the parts involved are the heater control button, its connecting wire and the heater control box, and support ships replacement parts under the parts warranty for your installer or a local licensed electrician to fit.

What Is Connected, and Where It Runs

Behind the access panel, the heating pads are wired to a heater control box, and the option has its own on and off button on the deck rather than sharing the air or hydro controls. The button carries a red light that should come on when it is pressed. A connecting wire runs between the button and the box, and support can send a longer wire if the original will not reach. The massage systems are run from either push buttons or the digital touchpad, which Push Button Controls vs the Digital Touchpad: Operating Every Deck Control demonstrates, and the heat button sits on the deck beside them. The heated seat and back is an electrical option, so your electrician reviews the specification sheet for your exact configuration when planning the dedicated circuit, and the team can confirm the requirement for the combination of options on your order.

If Something on Your Tub Does Feel Loose

When the heated backrest is described as loose, the question usually points to a part near it rather than to the pads, because the pads have no fastener to loosen. Work through these before assuming the heater is at fault.

• The magnetic access panel next to the door. It is designed to lift off, which is how you reach the serial number label and the heating pads behind it. A panel that moves is doing what it should.
• The heater control button on the deck. If it feels loose or the red light does not come on, say so in your ticket; support can send a new button.
• The connecting wire. A wire that has pulled off the button or the box stops the heat without any visible change inside the tub.
• The pad itself, felt through the open access panel. A pad that is warm while the surface is still cool means the heater is working and the surface needs longer. A pad that stays cold points to power or wiring, not to attachment.

Open a ticket at ellasbubbles.com/support or call (800) 480-6850 with your model, your serial number and where you purchased, describe exactly what happens, and attach photos of the heater control box, the button and the wiring so the configuration is clear. The serial number is on the label behind the magnetic access panel next to the door. Ella's Bubbles does not send technicians; the parts ship and a local licensed electrician or your installer fits them. Heated Seat Not Warming Up: What to Check First and Which Parts Support Ships walks through the no-heat checks in order.

Related Guides

• Heated Seat and Back Not Warming Up: Checking the Control Box LED and the Button Prongs
• How the optional heated seat and backrest works, and why it turns off after 20 minutes
• Why Isn't My Heated Seat Working?

Common Questions