If you are wondering what a button on your walk-in tub does, you are in good company, because some Transfer and legacy tubs ship with unlabeled push buttons and that is normal. Here is the quick key: Water is the hydro pump, Air is the three speed air massage, Micro is the microbubble system, Light is the LED chromatherapy, and the button with a flame on it is the heated seat. The plain knob with no label on a hydro tub is the intensity dial that regulates jet pressure. The first thing to check is which therapy package your tub was built with, because a tub only has buttons for the systems it contains, which is why you may have a Water button but no Air button. The full walkthrough lives in push controls versus the digital touchpad.
Likely Causes
- The tub shipped with unlabeled push buttons, which is normal on Transfer and some legacy models.
- The tub has only the therapies that were ordered, so a missing Air or Micro button simply means that system is not on the tub.
- The plain dial is the hydro intensity control, not a switch, so it does nothing until the hydro pump is running.
What to Check, in Order
- Fill the tub until the water sits at least 1 inch above the highest jets. Never press a pump button on a dry tub, because a dry run causes permanent damage that is not covered.
- Press each button once with the tub filled and watch what responds. Stirring water is Water (hydro), fine bubbles from the small holes is Air, a milky cloud is Micro, a glow inside the tub is Light, and warmth on the seat after 10 to 15 minutes is the flame button.
- Learn the air speeds. Press Air once for high, twice for medium, three times for low, and a fourth time to turn it off. Press gently with your palm, since pressing too hard can damage the mechanism. More in hydro massage versus air massage controls.
- With the Water button on, turn the plain dial to raise or lower jet pressure.
- Master the LED. Press once to cycle colors, keep pressing to lock a solid color, and press and hold to turn it off.
- If you have a digital panel, it runs air, LED, back hydro and the heated seat; foot massage and microbubble keep their own separate push buttons. The panel backlight stays on all the time, which is normal.
- Match everything to manuals, spec sheets and drawings by model and operating common questions.

Chapters in this video
- 0:00 Push Controls Versus Digital Touchpad Ella's Bubbles walk-in tubs offer a choice between on/off push controls and a digital touchpad for easy bathing.
- 0:45 Controlling Air Massage With Touchpad The air bubble icon on the digital touchpad activates the air massage, with plus and minus buttons adjusting intensity.
- 1:21 Chromo Therapy Light Functions Chromo therapy light functions the same with both control types, cycling through colors or selecting a specific one.
The video shows the air button pressed once for high, twice for medium, three times for low and a fourth time for off, hydro started with a single touch and set with the dial, and the touchpad icons held for two seconds to stop. Watch: Walk-In Tub with Push Controls & Digital Touchpad for Easy, Effortless Bathing with chapters and a full transcript.
When to Open a Ticket
If a button does nothing with the tub properly filled, or you cannot tell which package your tub has, send a clear photo of the control cluster and your order details to your Ella dealer or the team at ellasbubbles.com/support or (800) 480-6850. The team confirms the therapy package from your order and identifies every button for you.
Related Guides
- My Tub Was Supposed to Have an LED Light or Heated Seat, but There Is No Switch
- Is There a Time Limit on How Long the Microbubble Pump Runs?
- Can I Use My Jetted Ella Walk-In Tub as a Plain Soaking Tub With the Jets Off?
- Why Won't My Ella Digital Touchpad Respond When I Press a Button?
- Why does a deck push button do nothing on my walk-in tub?
- Can I upgrade my Ella walk-in tub from push buttons to a digital touchpad?