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Hi-Limit Harness 6472-525 - Bubbles Supply

Hi-Limit Harness 6472-525

Part #: 6472-525

$61.78
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 sensor

The Hi-Limit Harness 6472-525 is a genuine OEM sensor harness designed for Sundance Spas systems. This 2-foot 8-inch harness features a 2-pin LX connector configuration and connects your spa's hi-limit temperature sensor to the control system. When your spa displays HH (high heat), ICE, or OH (overheat) error codes, a faulty hi-limit harness is often the culprit, making this an essential diagnostic and replacement component.

Built to Sundance's exact OEM specifications, this harness ensures reliable temperature monitoring and system safety. At Bubbles Supply, we guarantee an exact fit for your spa with same-day shipping on in-stock items, backed by our comprehensive 1-year warranty. The 2-pin LX connector design makes identification straightforward, but always verify your existing harness length and connector type before ordering to ensure proper compatibility with your spa's control system.

Exact part number

6472-525

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Also known as / Replaces

This part replaces or is interchangeable with:

  • hi-limit sensor harness
  • hi-limit wiring harness
  • high limit harness
  • temperature sensor harness

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 displaying HH (High Heat) error code
  • Spa displaying OH (Overheat) error code
  • Spa displaying ICE warning code
  • Spa shutting down unexpectedly due to false temperature readings
  • Control system unable to read hi-limit sensor data
  • Intermittent or erratic temperature error codes with no clear cause

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

Before you buy — quick checklist

  • Measure your existing harness — confirm it is 2 feet 8 inches in length before ordering
  • Verify your existing harness uses a 2-pin LX connector — visually inspect the connector end before removing the old harness
  • Confirm the error code is harness-related and not the hi-limit sensor itself — the sensor and harness are separate components
  • Check that your spa's control board accepts this harness configuration — consult your spa's wiring diagram if unsure
  • Inspect the harness routing path for pinch points or heat damage that may indicate a recurring failure issue

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

Install difficulty: Easy — DIY-friendlyTypically 15-30 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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