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WIS Transformer ACM1129 - Bubbles Supply

WIS Transformer ACM1129

Part #: ACM1129

$86.39
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this transformer

The WIS Transformer ACM1129 is a genuine OEM electrical component designed for Wellis spa systems. This transformer ensures reliable power conversion for your spa's electrical operations, maintaining the precise voltage requirements your system needs for safe, consistent performance.

As an authentic Wellis part, this transformer delivers exact fit guaranteed compatibility with your spa's electrical panel. We ship same-day from our Canadian warehouse and back every transformer with our comprehensive 1-year warranty for complete peace of mind. Whether you're replacing a failed unit or upgrading your electrical system, this OEM transformer provides the reliability and performance Wellis spas are known for. Always verify part numbers match your existing transformer before installation and consider professional electrical work for safety compliance.

Exact part number

ACM1129

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • ACM1129 Transformer
  • Wellis Control Box Transformer
  • Wellis WIS Transformer

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 control panel completely dead with no display
  • Intermittent power loss or random shutdowns
  • Error codes related to power supply or low voltage
  • Spa lights or jets losing power unexpectedly
  • Transformer buzzing, burning smell, or visible heat damage

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

Before you buy — quick checklist

  • Confirm the part number ACM1129 matches the label on your existing transformer exactly
  • Verify your spa model is a Wellis brand unit — this is an OEM-specific part
  • Inspect the transformer's wiring harness connector type before removal to confirm it matches
  • Check your spa's main control board for secondary damage before replacing the transformer alone
  • Consult your spa's wiring diagram to confirm the transformer's position and connections in your specific unit

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

Install difficulty: Hard — Technician recommended

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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