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Why Won't My Chromatherapy Light Turn On?

Updated September 2026

When the chromatherapy light will not turn on, the first thing to check is how the button is being used, because the LED has three behaviors that are easy to mistake for a fault. One press starts the cycling colors, repeated single presses lock one solid color, and pressing and holding for about two seconds turns the light off. A light stuck on yellow or red is usually just locked on that color, and a light that will not shut off has not been held long enough. If the button really does nothing, look next at the air tube from the button to the LED control box, which runs on its own transformer, separate from the pump circuits.

Likely Causes

  • The light is locked on one color, or the button was tapped instead of held.
  • The red air tube from the light button is loose at the LED control box nipple or at the button's locking nut.
  • The LED control box has lost power at its three prong connector while the pumps are fine.
  • The LED module itself has failed at its three pin connection to the box.
  • On a digital touchpad, the pad or its cable to the master control box.

What to Check, in Order

  1. Press the light button once and wait for the cycle to begin. Press again to step through solid colors, then press and hold about two seconds to confirm it turns off.
  2. Confirm the breaker and the tub's GFCI outlet are live. Jets running proves the pump circuit, not the light, so keep going.
  3. Behind the access panel, find the chromatherapy control box. Check that the red tube is firmly on its nipple at the box and tight at the push button with the locking nut. A loose tube means the button's air signal never reaches the relay; the ports are shown in touchpad and push control troubleshooting.
  4. Check that the three prong power connector on the back of the box is fully plugged in, then listen for a click inside the box when the button is pressed. A click with no light points to the LED module or its three pin connection; no click points to the box or the air signal. Control box with no power light and replacement covers the box checks.
  5. If the light stopped at the same moment as the jets, look for a shared cause such as a tripped GFCI or a cord pulled loose behind the panel.
  6. For the full operating guide, see the chromatherapy lights guide.
Relax with LED Light Chromatherapy in Your Walk-In Tub

The video shows the routine on push buttons and the digital touchpad: press once for the full cycling color range, repeat a single press to select a specific color, and hold two seconds to turn the light off. Watch: Relax with LED Light Chromatherapy in Your Walk-In Tub with a full transcript.

When to Open a Ticket

If the hose is seated, the box has power and the light still stays dark or lit, a replacement LED light or control box comes through your Ella dealer or the team at (800) 480-6850, or a ticket at ellasbubbles.com/support; if it is the lens you need, a photo lets the team confirm the part. Include your model and serial number, whether you have push buttons or the digital touchpad, a photo of the LED control box and its connections, and a short video of a button press.

Common Questions

Is it the button or the bulb that has failed?
To determine if the chromatherapy light button or the LED module has failed, listen at the chromatherapy control box when you press the light button. A click inside the control box indicates that the button and the red air tube are working correctly, making the LED module or its three-pin connection the likely suspect. If you hear no click, the air signal is not reaching the relay, so you should check the red air tube from the button to the LED control box or the control box itself.
Why does my light stay on one color and not cycle?
Your chromatherapy light stays on one color and does not cycle because repeated single presses of the light button lock the LED on a solid color. For example, a light stuck on yellow is most often just locked on that specific color. To turn the light off, press and hold the button for about two seconds, then press it once to restart the cycling colors.
Can the light fail while the jets still work perfectly?
Yes, the chromatherapy light can fail while the jets still work perfectly because the chromatherapy system operates on its own transformer and LED control box, separate from the pump circuits. Therefore, the jets running normally does not indicate anything about the light circuit's functionality. You should check the light's own red air tube and three-prong power connector at the chromatherapy control box, rather than the pump control box, if the light is not working.
What is the electrical rating of the LED light?
The LED chromatherapy light is rated 0.5A and runs on its own transformer and control, separate from the pump circuits. Ozone sterilization is rated 0.04A. If a printed spec sheet lists the LED at 0.04A, that is a known misprint and the correct LED rating is 0.5A.

About this guide. Answers in the Ella’s Bubbles Support Center are compiled from real conversations with tub owners, our technicians’ notes and the product documentation, then reviewed by our team. Tub models and options have evolved over the years, so a detail here may differ slightly from your exact tub. If something looks different on yours, send us your serial number and a specialist will confirm it for your model.

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