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JWB Designer IV 7 Button Topside EJ15940 - Bubbles Supply
Exact Fit

JWB Designer IV 7 Button Topside EJ15940

Part #: EJ15940

$290.17
In stock — ships today
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🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this topside/keypad

The JWB Designer IV 7 Button Topside (EJ15940) is a genuine Jacuzzi Whirlpool control panel designed for compatible Jacuzzi spa systems. This OEM replacement topside features seven control buttons with the distinctive Jacuzzi logo in a clean white finish, delivering the same reliable performance and premium look as your original equipment.

Built to Jacuzzi's exact specifications, this Designer IV topside ensures seamless integration with your spa's control pack system. At Bubbles Supply, we guarantee an exact fit with our authentic OEM parts, plus you'll get same-day shipping and our comprehensive 1-year warranty for complete peace of mind. Before installation, verify your current topside model number matches EJ15940 to ensure proper compatibility with your spa's control system.

Exact part number

EJ15940

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • Designer IV Topside Control Panel
  • EJ15940 Control Panel
  • Jacuzzi 7-Button Topside

Looking for an older part number? Check our supersession lookup tool

Fits these brands and models

Compatible brands

JacuzziJacuzzi Whirlpool Bath
Not sure if it fits your spa? Send us a photo — we'll confirm before you order

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Topside buttons not responding
  • Blank or unlit control panel display
  • Spa functions not toggling from topside (jets, lights, heat)
  • Cracked, water-damaged, or physically broken button panel
  • Intermittent button response or stuck buttons
  • Topside showing error codes and unresponsive to input

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

  • Confirm your existing topside model number is EJ15940 — check the label on the back of your current panel
  • Verify your spa's control pack is compatible with the Designer IV topside series
  • Inspect the ribbon or cable connector type on your current topside to ensure it matches this replacement
  • Check the number of buttons on your existing topside — this unit has 7 buttons
  • Confirm the physical dimensions and mounting configuration match your spa's topside cutout

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Easy — DIY-friendlyTypically 15-30 minutes

What's in the box

  • JWB Designer IV 7-Button Topside Control Panel (EJ15940)
  • Connecting cable or ribbon harness (verify inclusion at time of order)
  • Mounting hardware

If your order is missing any items listed above, contact hello@bubblessupply.com within 48 hours of delivery.

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

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