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2'8" Hi-Limit Harness 6600-140 - Bubbles Supply

2'8" Hi-Limit Harness 6600-140

Part #: 6600-140

$75.47
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this sensor

This Jacuzzi 2'8" Hi-Limit Harness (part #6600-140) is an OEM sensor harness designed for Jacuzzi spa systems with LX and LED control configurations. The 2 foot 8 inch length provides the precise reach needed to connect hi-limit sensors to your spa's control system, ensuring proper temperature monitoring and safety shutoff functionality. This genuine Jacuzzi harness resolves common error codes including HH (high heat), ICE (freeze protection), and OH (overheat) conditions.

At Bubbles Supply, we guarantee this harness will be an exact fit for your Jacuzzi spa system. Every order ships same-day when placed before our cutoff time, and we back this OEM part with our comprehensive 1-year warranty for complete peace of mind. Before installation, verify your existing harness length and connector configuration to ensure proper fitment with your spa's control board and hi-limit sensor assembly.

Exact part number

6600-140

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Also known as / Replaces

This part replaces or is interchangeable with:

  • Hi-Limit Pigtail
  • Hi-Limit Sensor Harness
  • High Limit Wiring Harness
  • Sensor Lead 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:

  • Persistent HH (high heat) error code that won't clear
  • OH (overheat) fault triggering unexpected shutoff
  • ICE (freeze protection) error code displaying incorrectly
  • Spa shutting down due to false temperature readings
  • Hi-limit sensor not communicating with control board
  • Damaged, burnt, or corroded harness connector causing intermittent faults

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

Before you buy — quick checklist

  • Confirm your spa uses an LX or LED control system — this harness is specific to those configurations
  • Measure your existing harness length end-to-end to verify 2'8" is the correct reach for your installation
  • Inspect both ends of the existing harness for connector type and pin count before ordering
  • Check whether the fault codes (HH, OH, ICE) clear after replacing the harness vs. the hi-limit sensor itself — rule out a failed sensor first
  • Verify your spa's control board is the root cause before replacing the harness — a shorted board can damage a new harness

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

Install difficulty: Medium — Some experience neededTypically 30–60 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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