Support Center / Troubleshooting & Repairs / GFCI Trips Only When the Air or Hydro Pump Starts: Test the GFCI First, Then Look for Water Under the Tub
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GFCI Trips Only When the Air or Hydro Pump Starts: Test the GFCI First, Then Look for Water Under the Tub

▶Glossary8
  1. Why the GFCI Is the First Suspect
  2. Then Look for Water Where It Should Not Be
  3. If Everything Is Dry
  4. Breaker Tripping When the Tub Is Not in Use
  5. Stop Using the Affected Function
  6. Related Guides
  7. Common Questions
  8. Still Need Help?

When the GFCI trips the instant you press the air button or the hydro button, but the other functions run fine, Ella technical support starts with the simplest possibility: the GFCI device itself is faulty. Have an electrician test it and, if there is any doubt, replace it, because a GFCI is quick to swap. If a new GFCI still trips on that one function, the next place to look is under the tub for water reaching the electrical components, most often from an air line that has slipped off its fitting or a damaged water fitting that leaks when the pump runs.

Why the GFCI Is the First Suspect

Ella tubs are protected by GFCI receptacles under the tub, and each pump or blower plugs into one of them. A GFCI can fail in a way that makes it trip when a motor starts while still powering the light or a control. That produces exactly the pattern of one button tripping the tub every time. Because it is the easiest part to change, support asks for it to be tested and replaced before anything else is taken apart. Circuit sizing and the other electrical causes are covered in why does the GFCI trip when the jets turn on and breaker or GFCI keeps tripping.

Then Look for Water Where It Should Not Be

If a known-good GFCI still trips, water is the most common cause. Two faults appear in support's records.

  1. An air line that has worked loose from the blower or a jet fitting. When the blower starts, water escapes from the line onto the pump or the GFCI and the circuit trips. The fix is to reseat the line and secure it, for example with a cable tie, so it cannot slip off again.
  2. A cracked or damaged water fitting under the tub that leaks when the pump runs. Support ships a replacement fitting under the warranty once you send photos, and can explain to your plumber how it is fitted.

To check, open the magnetic access panel, fill the tub above the jets, have a helper run the function that trips, and watch and listen for leaks under the tub. Dry the components and the surrounding floor first so fresh water is obvious. Also confirm every cord is pushed fully into its receptacle; a plug that is seated only partway can cause intermittent trips.

If Everything Is Dry

A dry tub with a new GFCI that still trips on one function points to the pump or blower for that function. Send support the model, therapy package, serial number and photos of the pump and the GFCI. Support compares the parts against your build and, when the pump is the cause, ships a replacement under the parts warranty. Your installer or a local licensed electrician or plumber does the replacement, and technical support guides them by phone or video. See why did the jets stop working for the related no-power symptoms.

Breaker Tripping When the Tub Is Not in Use

A breaker that trips days apart while the tub sits idle is a different problem from a trip at the moment a pump starts. Unplugging one component at a time under the tub and waiting to see whether the trip returns isolates the source, and support will ask for photos of the control box to compare with the correct unit for your model. After a storm or outage, start with nothing works after a storm or power outage.

Stop Using the Affected Function

Until the cause is found, leave the function that trips switched off. Repeated trips with water present are a sign that water is reaching parts that must stay dry. The other functions can still be used if they run without tripping, but have the tub looked at promptly.

Common Questions

Why does only the air button trip the GFCI while the hydro jets run fine?
Each function has its own pump or blower, so a fault on one of them trips the circuit only when that one starts. The GFCI itself, a loose air line letting water onto the electrics, or a failing blower are the usual causes. Test the GFCI first, then check under the tub with the air running.
Can a GFCI outlet itself be the reason the tub trips?
Yes. A worn or faulty GFCI can trip when a motor starts while still powering the light and controls. Because it is the easiest part to change, support asks for it to be tested and replaced before any pump is suspected.
Where is the GFCI located on an Ella walk-in tub?
The GFCI receptacles are under the tub, reached through the magnetic access panel beside the door. Each pump or blower plugs into one of them, which is why checking the plugs and the receptacles is part of every trip diagnosis.
What if water is leaking from a fitting under the tub?
Turn the function off, photograph the fitting, and send the photos with your serial number to technical support. Replacement fittings ship under the parts warranty. A local plumber installs the fitting, and support can talk them through it if they have questions.
Who replaces the GFCI or the pump once Ella sends the part?
Ella ships parts under the lifetime parts warranty but does not send technicians. A local licensed electrician handles the GFCI and wiring, and a plumber or your installer handles fittings and pumps. Technical support is available by phone and video to guide whoever does the work.

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

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