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J300 Circuit Board 6600-296 - Bubbles Supply

J300 Circuit Board 6600-296

Part #: 6600-296

$1042.97
In stock — ships today
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About this circuit board

The Jacuzzi J300 Circuit Board 6600-296 is an OEM replacement control board designed for J300 series spas with single pump configurations. This genuine Jacuzzi circuit board operates on dual voltage 50/60Hz frequency, making it compatible with both standard residential and international electrical systems. The board manages essential spa functions including pump operation, heating cycles, and safety protocols to keep your spa running reliably.

At Bubbles Supply, we guarantee this circuit board is an exact OEM fit for your Jacuzzi spa, backed by our comprehensive 1-year warranty and same-day shipping on in-stock items. This authentic Jacuzzi replacement ensures your spa's control system maintains factory specifications and performance standards. Professional installation is recommended for circuit board replacement, and always verify your existing board's part number matches 6600-296 before ordering to ensure proper compatibility with your specific J300 spa model.

Exact part number

6600-296

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • J300 control board
  • J300 main board
  • Jacuzzi 6600-296 PCB

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

Technical specifications

Voltage
120V/240V dual voltage, 50/60Hz

Common symptoms this part fixes

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

  • Spa displays error codes and will not operate
  • Pump runs continuously and will not shut off
  • Heater not activating despite correct water temperature setpoint
  • Spa completely unresponsive — no display, no pump, no heat
  • Intermittent loss of control panel function
  • Spa functions cycling on and off randomly without input

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

Before you buy — quick checklist

  • Confirm your existing board's part number is exactly 6600-296 — do not rely on model name alone
  • Verify your J300 spa is a single pump configuration, not a dual pump setup
  • Inspect the existing board for visible damage such as burnt traces, blown capacitors, or corrosion before ordering — rule out upstream causes like a failed GFCI, tripped breaker, or damaged wiring harness first
  • Check that your spa's voltage supply matches the board's dual voltage rating
  • Document all wiring harness connector positions with photos before removing the old board

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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