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Why Does the GFCI Trip When the Jets Turn On?

Updated September 2026

▶Glossary5
  1. Likely Causes
  2. What to Check, in Order
  3. When to Open a Ticket
  4. Related Guides
  5. Common Questions

When the GFCI trips when the jets turn on, the tub is almost always telling you one of two things: the circuit is carrying more than it was sized for, or a component is leaking current to ground. The first thing to check is the wiring. Every Ella tub with pumps needs its own dedicated 20 amp, 120 volt GFCI protected line for each labeled cord, sharing nothing with any other appliance. Hydro plus air runs on one line, while hydro plus microbubble, or hydro plus foot massage plus heated seat, needs two. A tub that trips only when everything is on is describing an overload; one that trips with the pumps unplugged points at the control box or its cord. Either way, stop using the tub while it trips.

Likely Causes

  • A shared or undersized circuit. A 15 amp line where 20 is specified, or a circuit shared with a bathroom outlet, overloads when the pump and in line heater run together.
  • Two labeled cords plugged into one line when the package calls for two.
  • A ground fault at the control box, its cord or a pump. This is the case where the GFCI trips with everything else disconnected.
  • A GFCI device that fails its own test button, which is a shock hazard.

What to Check, in Order

  1. Confirm the circuit. Ask your electrician whether the tub has its own dedicated 20 amp GFCI line for each cord and whether anything else is on that breaker. The counts are in electrical requirements by model.
  2. Read the cord labels. On a two line tub they read Line 1 20 Amp and Line 2 20 Amp. See common electrical questions.
  3. Note when it trips: immediately on reset with nothing running, only when the microbubble or heated seat joins the hydro, or at random while idle.
  4. Isolate. With power off, unplug the pumps from the control box, reset the GFCI and restore power. If it trips with everything disconnected from the box, the box or its cord is the suspect. See control box has no power light.
  5. Press the test button on the GFCI. If it fails to trip on test or will not reset, leave the power off. Ground current or device malfunction is a shock hazard, and an electrician must correct it before the tub is used.
  6. Check for water under the tub, since a damp outlet trips a GFCI on its own. Breaker or GFCI keeps tripping covers component loads and when to stop.
Ella's Bubbles: Proper Electrical Requirements For Installation
Chapters in this video
  1. 0:00 Electrical Components Are Marked Ella's Bubbles ensures all electrical components are clearly marked and easily accessible for installation.
  2. 0:13 Dedicated GFCI Protected Outlets Your contractor connects the tub to your home's power supply using dedicated GFCI protected outlets.
  3. 0:25 GFCI Protected Breakers The breaker box must utilize GFCI protected breakers with the appropriate amperage value for your tub's components.
  4. 0:40 Enjoy Your Walk-In Tub Proper installation provides years of reliable, trouble-free walk-in tub enjoyment.

The video lays out the rules your electrician follows: dedicated GFCI protected outlets, no sharing a circuit with any other appliance, and breaker amperage sized to the number and type of components in your tub. Watch: Ella's Bubbles: Proper Electrical Requirements For Installation with chapters and a full transcript.

When to Open a Ticket

Stop using the tub while it trips and open a ticket at ellasbubbles.com/support with your serial number, which therapies your tub has, how many labeled cords it has and where each is plugged in, exactly when the trip happens, and a photo of the control box with its cords. Your Ella dealer or the team at (800) 480-6850 can confirm the line count for your package and identify a suspect part from the pattern you describe.

Common Questions

Why does the breaker trip immediately when I reset it?
An instant trip with nothing running usually means a ground fault rather than an overload. Unplug the pumps from the control box and reset; if it still trips, the box or its cord is the suspect. Leave the power off until it has been checked.
Why does the microbubble kick out the breaker when the hydro is already running?
Hydro plus microbubble needs two dedicated 20 amp, 120 volt GFCI protected lines, with one line for each labeled cord. If both labeled cords are plugged into one circuit, the microbubble pump will push the electrical load past the breaker when it joins the hydro pump. Your electrician will need to add the second dedicated 20 amp line to meet the electrical requirements for your tub's components.
Why does the breaker trip while the tub is not being used?
If your Ella's Bubbles walk-in tub trips the GFCI while it is not being used, it indicates a ground fault or moisture rather than an overload. Common causes include a damp outlet under the tub, a ground fault at the control box or its cord, or a GFCI device that is failing its own test. You should stop using the tub while it trips and have an electrician confirm the circuit and check for these issues.
Is it dangerous that the tub tripped the GFCI while I was in it?
No, the GFCI did its job by cutting power the moment it sensed a fault, which is a safety measure. You should not reset the GFCI and continue bathing if it tripped while you were in the tub. It is important to have the circuit and the tub checked by an electrician before the next use, and inform the support team that the GFCI tripped under load.

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.

Related guides

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