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4 HP Spa Pump 2 Speed 230V 56WUA400-2-6 4.00HP - Bubbles Supply

4 HP Spa Pump 2 Speed 230V 56WUA400-2-6

Part #: 56WUA400-2-6

$779.30
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this spa pump

This LX 56WUA400-2-6 is a 4 HP dual-speed main circulation pump designed for larger commercial and residential spa systems requiring 230V power. The large 56Y frame design delivers robust performance with its 2-pole/6-pole motor configuration, providing both powerful filtration on low speed and strong hydrotherapy jets on high speed.

At Bubbles Supply, this LX pump replacement ships same-day with our exact fit guarantee and full 1-year warranty. As Canada's spa parts authority, we ensure you're getting the genuine LX quality that spa technicians trust for reliable, long-term operation. Verify your existing pump's model number and electrical specifications match before installation—proper voltage and plumbing connections are essential for safe operation.

Exact part number

56WUA400-2-6

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 56WUA400-2-6
  • LX 4HP 2-Speed Pump
  • LX 56Y 4HP Dual Speed Pump

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

Technical specifications

Voltage
230V
Horsepower
4.0 HP
Frame size
56Y frame
Speed
Two-speed

Common symptoms this part fixes

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

  • Pump won't start or trips breaker on startup
  • Motor hums but impeller won't spin
  • Weak or no jet pressure on high speed
  • Pump runs on low speed but fails to switch to high
  • Excessive noise or grinding during operation
  • Spa displaying DR or DRY error due to insufficient flow

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

Before you buy — quick checklist

  • Confirm your existing pump is 230V — this pump is not dual voltage and cannot run on 115V
  • Check the HP rating on your old pump's motor label — do not upsize or downsize HP without verifying your plumbing and electrical can support it
  • Verify your spa's breaker amperage can handle a 4 HP 230V load before wiring in
  • Measure your existing plumbing union size and confirm it matches this pump's inlet and outlet ports before ordering
  • Confirm your existing pump is a 56Y frame — a 48-frame pump will not bolt into the same mounting position
  • Check whether your spa controller is programmed for a 2-speed pump — single-speed controllers will not utilize both speeds correctly

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

Install difficulty: Hard — Technician recommendedTypically 60-120 minutes

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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