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In.Line WIS Control ACM1128 - Bubbles Supply

In.Line WIS Control ACM1128

Part #: ACM1128

$389.65
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this control pack

The In.Line WIS Control ACM1128 is an OEM control pack designed for compatible Wellis spa systems. This genuine Wellis control unit manages your spa's essential functions including pump operation, heating cycles, and filtration timing to keep your hot tub running reliably.

As an original equipment manufacturer part, this WIS control delivers the exact specifications your Wellis spa requires for optimal performance. At Bubbles Supply, we guarantee this control pack will fit your system perfectly, and we back every purchase with our comprehensive 1-year warranty. Most orders ship the same day for minimal downtime. Professional installation is recommended to ensure proper electrical connections and system integration—always verify your current control's part number matches ACM1128 before ordering to confirm compatibility with your specific Wellis spa model.

Exact part number

ACM1128

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • ACM1128 Control Module
  • Wellis In.Line Control Unit
  • WIS Control Pack

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

Common symptoms this part fixes

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

  • Spa display is blank or unresponsive
  • Pumps not responding to control panel input
  • Heater not activating despite correct temperature settings
  • Filtration cycles not running on schedule
  • Spa stuck in error/fault mode with no recovery
  • Control panel buttons registering no response

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

Before you buy — quick checklist

  • Confirm your existing control pack's part number is ACM1128 — do not rely on visual match alone
  • Verify your Wellis spa model is listed as compatible before ordering
  • Document all wiring connections with photos before disconnecting the old unit
  • Check whether your spa is under manufacturer warranty — control pack replacement may void coverage if not authorized
  • Confirm the fault is the control pack and not the topside panel or a sensor by ruling out simpler causes first

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

Install difficulty: Hard — Technician recommendedTypically 60-120 minutes

Warranty

1 year 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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