Support Center / Troubleshooting & Repairs / In-Line Heater Light Stays Off and the Water Cools: How to Check It and Get a Replacement
Back to Troubleshooting & Repairs

In-Line Heater Light Stays Off and the Water Cools: How to Check It and Get a Replacement

▶Glossary8
  1. How the In-Line Heater Works
  2. Checks Before Requesting a Replacement
  3. Identify Your Heater Style
  4. Getting the Replacement
  5. What to Send with Your Ticket
  6. Related Guides
  7. Common Questions
  8. Still Need Help?

The in-line heater on an Ella hydro massage tub switches on by itself whenever the hydro pump runs, and a red indicator light shows that it is heating. There is no reset button. If power is reaching the tub and the hydro pump runs but the light never comes on, or it lights for a few seconds and goes dark while the pump keeps running, the heater has failed and is replaced as a part under the lifetime parts warranty. Open a ticket with your serial number and a photo of the heater so the correct style ships, then have a local licensed plumber or electrician fit it.

How the In-Line Heater Works

The heater sits in the hydro plumbing line beside the pump and warms the water passing through it, which helps the bath hold its temperature during a hydro massage. It runs only while the hydro pump is on, so it cannot be switched on by itself and does not heat a still tub. The heated seat and backrest is a separate system, covered in the heated seat troubleshooting article. If hot water never reaches the tub in the first place, start with why the tub has no hot water when the sinks do.

Checks Before Requesting a Replacement

  1. Confirm the tub has power and the GFCI breaker or receptacle has not tripped.
  2. Start the hydro massage and confirm the pump runs and the jets have pressure.
  3. Open the access panel and look at the heater's indicator light while the pump runs. It should light and stay lit.
  4. Note whether the light never lights, or lights briefly and then goes out while the pump continues.

If power is present and the pump runs but the light stays off, no further troubleshooting is needed. The heater is replaced rather than repaired.

Identify Your Heater Style

Ella has used two in-line heater styles. The straight style is a tube that connects in line with the hydro plumbing. The T-style has a T-shaped body with a side connection. Support needs to know which one your tub has before a replacement ships. Take a clear photo of the heater and its connections with the access panel open and attach it to your ticket. If you own an older tub, the article on parts for older and discontinued Ella tubs explains how legacy components are matched.

Getting the Replacement

Once support confirms the fault and the heater style, the replacement ships to you under the parts warranty. If you will be away from the installation address, tell support where the part should go. Ella's Bubbles does not send technicians. The heater is installed in line by a local licensed plumber or electrician, who disconnects the old unit at the pump and the hydro tubing, fits the new one in its place, reconnects the jet tubing to the manifold and the wiring, and tests with the pump running to confirm the light comes on. Keep the tub's access panel reachable so the work can be done without disturbing finished walls. If the panel is missing, see how to get a replacement access panel.

What to Send with Your Ticket

  • Model and serial number from the label behind the magnetic access panel.
  • A photo of the heater showing its shape and connections.
  • A short description: light never on, or light on briefly then off while the pump runs.
  • The shipping address for the part.

Common Questions

Does the in-line heater have a reset button I can press?
No. The heater has no reset button and no separate switch. It turns on automatically when the hydro pump runs and shows a red light while it is working. If power is present and the light does not come on, the heater needs to be replaced.
Is the in-line heater covered by the warranty?
Yes. The in-line heater is supporting equipment covered by the lifetime parts warranty for the original owner at the original installation address. The replacement part ships at no charge once support verifies the fault. Labor to install it is not covered and is arranged locally.
Will Ella send someone out to replace the heater?
No. Ella ships the replacement part and provides free technical support by phone, email, and video. A local licensed plumber or electrician does the physical replacement.
Why does the heater light go off while the pump is still running?
The light should stay on for as long as the hydro pump runs. A light that comes on for a few seconds and then goes dark while the pump continues indicates a heater fault. Report it in your ticket with the model and serial number so a replacement can be arranged.
Which in-line heater style does my tub have?
Look at the heater with the access panel open. A straight heater is a plain tube in line with the hydro plumbing, while a T-style heater has a side connection. Send a photo with your ticket and support will match the correct replacement.

Still Need Help?

Open a ticket at ellasbubbles.com/support or call (800) 480-6850 and have your model and serial number ready.

Related guides

Did this solve your question?

If not, open a ticket and our team will pick it up from here.

Open a Support Ticket