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Sundance Jacuzzi Flow Switch 6560-646 - Bubbles Supply
Exact Fit

Sundance Jacuzzi Flow Switch 6560-646

Part #: 6560-646

$82.09
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this flow switch

The Sundance Jacuzzi Flow Switch 6560-646 is an OEM replacement sensor designed for Sundance in-ground spa systems. This critical safety component monitors water flow through your spa's plumbing system, automatically shutting down heating elements when flow drops below safe levels to prevent equipment damage. The switch features standard 2" x 2" x 1/2" threading and comes complete with a 5-foot cable for flexible installation positioning.

Built to exact OEM specifications, this genuine Sundance flow switch delivers the precise performance your spa system requires. At Bubbles Supply, we guarantee an exact fit for your Sundance spa, back every purchase with our comprehensive 1-year warranty, and ship the same day you order. This flow switch addresses common error codes including HH, ICE, and OH messages that indicate flow-related issues. Professional installation recommended to ensure proper placement within your spa's circulation system and optimal sensor performance.

Exact part number

6560-646

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 6560-646 flow switch
  • Jacuzzi flow sensor
  • spa water flow switch
  • Sundance flow switch

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

Fits these brands and models

Compatible brands

Sundance SpasJacuzzi
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:

  • HH error code on control panel
  • ICE error code on control panel
  • OH (overheat) error code on control panel
  • Heater shuts off unexpectedly or won't stay on
  • Spa goes into protection mode despite normal water flow
  • Control system reports flow fault with pumps running

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

Before you buy — quick checklist

  • Confirm your spa model is a Sundance or Jacuzzi in-ground system that uses a flow switch style sensor (not a pressure switch)
  • Locate your existing flow switch and verify it uses 1/2" NPT threading to match this unit
  • Check that your current cable run can accommodate a 5-foot cable — if your switch is mounted further from the controller, this may not reach
  • Rule out other causes of HH/ICE/OH codes first — dirty filters, low water level, or a failed pump can trigger the same errors
  • Inspect the existing switch for obvious damage, corrosion, or failed paddle/reed mechanism before ordering

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

Install difficulty: Medium — Some experience neededTypically 45-90 minutes

What's in the box

  • Flow switch assembly
  • 5-foot cable
  • Replacement O-ring or gasket (verify at time of purchase)

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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