If you are asking which cord plugs where, the rule is simple: every pump, heater and control box on an Ella walk-in tub is labeled at the factory, each power cord goes to its own dedicated GFCI protected outlet, and the thin air hoses run from the deck push buttons to the nipples on the control box. The blue box by the motor is the master control box; it feeds the air pump, water pump, LED and heated seat from labeled ports. The first thing to check is the component diagram for your therapy package.
Likely Causes
- The installer left numerous plugs not connected and no direction.
- A three pump tub powers the third pump with the in line heater on its own line, so there are more cords than box ports.
- The big plug will not fit the GFCI because it is a 20 amp plug and the receptacle is a 15 amp type.
- The outlets sit too far from the equipment compartment, so the cords cannot reach.
What to Check, in Order
- Count the lines. Your jetting package lists the dedicated 20A, 120V GFCI lines, and electrical requirements by model tabulates every configuration.
- Read the cord labels. Each labeled line goes to its own dedicated GFCI outlet; no two lines share a receptacle.
- Identify the blue box. The master control box takes power at its inlet and runs the air pump, water pump, LED and heated seat from labeled ports, with the push button air hoses on its nipples. A green light shows power is reaching it.
- Account for the extra cord on a three pump tub. The control box runs the air pump and one water pump; the third pump is powered with the in line heater on a separate line.
- Match the plug to the receptacle. A plug with one horizontal blade is a 20 amp plug and needs a 20 amp receptacle. If only the microbubble runs because that cord was the only one that fit, have your electrician change the receptacle.
- Fix reach at the outlet, never with an extension cord. Outlets belong in or behind the equipment compartment under the seat so every cord reaches. See outlet placement and cord reach.
- Seat the air hoses on their nipples. If several functions act up after reconnecting, follow the control box reset guide.
In the video, the chromatherapy box takes power at the back, the LED on the three pin connector and the push button air hose on the nipple; the air only box takes power, the air pump on the three pin connector and the air switch on the nipple, and auto purge runs from it about 20 minutes after use.
When to Open a Ticket
If the cords remain unclear, open a ticket with your order number, model and therapy package, a wide photo of the equipment compartment with the apron off, close ups of each cord label and control box, and a photo of the outlets. Your Ella dealer or the team at (800) 480-6850 can email the electrical diagram for your model and confirm each connection from the photos. The full walkthrough is in cords, control boxes and connections after install.