🔌 Sundance® / Jacuzzi® 6600-297 J-300 LED Series Spa Circuit Board (2-Pump, CLEARRAY® On-Demand)

The current OEM replacement PCB for 2014–2015 2-Pump Jacuzzi® J-300 LED spas equipped with the CLEARRAY® on-demand water-sanitation feature.

📋 Product Overview

The Sundance® / Jacuzzi® 6600-297 is the current OEM main circuit board for 2014–2015 2-Pump Jacuzzi® J-300 LED Series hot tubs — covering the J-385®, J-375®, J-365®, J-355®, J-345®, and J-335® models. Shipping with the latest Micro Chip 3.83 pre-installed, this board is a direct factory replacement for the discontinued 6600-293 (chip 3.82) and 6600-364 (original version) boards, and is the correct PCB for every 2014–2015 J-300 LED 2-pump spa equipped with Jacuzzi®’s CLEARRAY® on-demand UV-C water-sanitation system.

Built on the Jacuzzi® Proprietary SMT 2014 Control System platform, the 6600-297 supports a 2-pump configuration with a dedicated 24-hour circulation pump, drives the CLEARRAY® on-demand UV sanitizer cycle, controls the heater and spa lighting, and incorporates updated Smart Logic energy-saving behavior plus revised Summer Logic introduced with the 3.83 chip revision. The board is factory-configured for standard J-300 spa operation and pairs exclusively with the matching 6600-715 SMT 2014 topside control panel — the two components must be replaced together because the software handshake between board and topside is not backward-compatible with the older 6600-293 / 6600-364 topsides.

⚠️ This board is 2-pump only. For 2014–2015 1-pump J-325® / J-315® models, use the 6600-296 instead. ⚠️ This board is CLEARRAY® on-demand only. Spas originally equipped with the older constant-on CLEARRAY® system require a different control path — confirm before ordering.

✨ Key Features

• ✅ Current OEM Sundance® / Jacuzzi® replacement – factory-new board with Micro Chip 3.83 pre-installed
• ✅ Direct replacement for discontinued 6600-293 and 6600-364 – same mounting footprint, compatible harness layout
• ✅ 2014–2015 2-Pump J-300 LED Series coverage – J-385®, J-375®, J-365®, J-355®, J-345®, J-335®
• ✅ CLEARRAY® on-demand UV-C sanitation support – drives the on-demand UV cycle during heat and filter calls
• ✅ Jacuzzi® Proprietary SMT 2014 platform – engineered for the matching 6600-715 topside panel
• ✅ Dedicated 2 jet-pump outputs plus 24-hour circulation pump control
• ✅ Chip 3.83 features: Smart Logic energy-save + revised Summer Logic
• ✅ ½-hour filter cycles – precise, programmable cycle timing
• ✅ 106°F overtemp protection – keeps bathers safe under all summer conditions
• ✅ Programmable circulation-pump runtime – customize to match climate and usage
• ✅ LED display support – drives the J-300 LED topside interface
• ✅ Covered by manufacturer’s limited warranty

🔧 Technical Specifications

Specification	Value
OEM Part Number	6600-297
Also Listed As	SD6600-297
Platform	Jacuzzi® Proprietary SMT 2014 Control System
Spa Series	J-300 LED Series (2-Pump, 2014–2015)
Pre-Installed Chip	Micro Chip 3.83 (Jacuzzi® chip PN 6660-289)
Chip Family Coverage	Supersedes chips 3.82 and 3.80
Pump Configuration	2 jet pumps + dedicated 24-hour circulation pump
Sanitation System	CLEARRAY® on-demand UV-C (supported — required)
Matching Topside Panel	Sundance® / Jacuzzi® 6600-715 (8-button J-300 SMT 2014)
Filter Cycle	½ hour, programmable
Overtemp Protection	106°F
Smart Logic	Deducts non-programmed heat-call run times from next day’s filter cycle to save energy
Summer Logic	Revised (included on chip 3.83)
Replaces (Discontinued)	6600-293 (2nd revision, chip 3.82), 6600-364 (original version)
Non-Returnable	✅ Yes — final sale
Warranty	Manufacturer’s limited warranty

📌 Electrical supply voltage is spa-model-specific. The 6600-297 is installed in J-300 LED 2-pump spas that ship configured per the spa’s factory data plate (typically 240 V / 60 Hz for US J-300 models). Always verify against your spa’s data plate before connecting power. No universal voltage/amperage rating is published for the bare 6600-297 PCB because the configuration is dictated by your specific J-300 model’s heater, pumps, and service supply.

🔗 Compatibility Guide

Covered 2014–2015 Jacuzzi® J-300 LED 2-Pump Models

Model	Notes
♨️ J-385®	2-pump, circulation pump, CLEARRAY® on-demand — top-of-line J-300 LED
♨️ J-375®	2-pump, circulation pump, CLEARRAY® on-demand
♨️ J-365®	2-pump, circulation pump, CLEARRAY® on-demand
♨️ J-355®	2-pump, circulation pump, CLEARRAY® on-demand
♨️ J-345®	2-pump, circulation pump, CLEARRAY® on-demand
♨️ J-335®	2-pump, circulation pump, CLEARRAY® on-demand — entry-level J-300 LED 2-pump

Boards Replaced by the 6600-297

Discontinued OEM	Original Revision	Notes
6600-293	Micro Chip 3.82	2nd-revision J-300 LED 2-pump board – superseded
6600-364	Original version	First-revision J-300 LED 2-pump board – superseded

Matching Topside Panel (Required)

Part Number	Description
6600-715	Sundance® / Jacuzzi® SMT 2014 8-button topside panel (Clearray, Light, Light Mode, Temp−, Temp+, Jets1, Jets2, Program) — used on 2014–2015 2-Pump J-385 / J-375 / J-365 / J-355 / J-345 / J-335

⚠️ Topside and board must be replaced together. The Jacuzzi® SMT 2014 control system uses a software handshake between the 6600-297 board and the 6600-715 topside that is NOT backward-compatible with the older 6600-293 / 6600-364 boards or their original topsides. If you are replacing a failed board that was originally paired with an older topside panel, you will likely need to replace the topside at the same time — contact Parts4Tubs to confirm your upgrade path before ordering.

NOT Compatible — Use a Different Board

Your spa	Correct Replacement
❌ 2014–2015 1-Pump J-325® or J-315®	6600-296 (1-pump J-300 LED variant, same 3.83 chip family)
❌ 2016–05/2018 J-385 / J-375 / J-365 / J-355 / J-345 / J-335	6600-784 (2-pump microprocessor board for the next-generation J-300 LCD platform)
❌ 2016–05/2018 J-325 / J-315	6600-786 (1-pump microprocessor board for the next-generation J-300 LCD platform)
❌ 06/2018+ J-385 / J-375 / J-365 / J-355 / J-345 / J-335 (encrypted board era)	6600-420 (encrypted, not backward-compatible)
❌ 06/2018+ J-325 / J-315 (encrypted board era)	6600-412 (encrypted, not backward-compatible)
❌ Pre-2014 J-300 LED (chip 3.82 or 3.80)	These are superseded by the 6600-297, BUT the original topside must be upgraded to 6600-715 at the same time (software handshake is not backward-compatible)
❌ J-300 LCD models (not LED)	Different board family — contact Parts4Tubs for identification

Compatible Companion Parts

Component	Part Number	Notes
Topside panel	6600-715	8-button SMT 2014 panel (required pairing)
Temperature sensor	6600-166	Curled-finger connectors, stainless steel, compatible with J-300 Series

🎛️ Board Functions & Controls

Controlled Outputs

Output	Function
Pump 1	Primary jet pump (per J-300 factory configuration)
Pump 2	Secondary jet pump (per J-300 factory configuration)
Circulation Pump	Dedicated 24-hour circ pump (programmable runtime)
Heater	J-300 flow-through heater (per spa model’s installed heater)
CLEARRAY® UV	On-demand UV-C cycle (during heat and filter calls)
Spa Lighting	LED spa lighting per J-300 factory configuration
Topside Interface	8-pin communication to 6600-715 topside panel

Chip 3.83 Logic Features

Feature	Behavior
Filter Cycle	½-hour programmable cycles
Overtemp Threshold	106°F automatic shutdown
Smart Logic	Automatically deducts any non-programmed heat-call circulation runtime from the next day’s scheduled filter cycle — saves energy without compromising water quality
Summer Logic	Revised algorithm (introduced with 3.83) – prevents unnecessary heat calls during warm-ambient conditions
Programmable Circ	Circulation pump runtime is user-configurable

🛠️ Installation Requirements

Pre-Installation Checklist

• [ ] Confirm your spa is a 2014–2015 Jacuzzi® J-300 LED 2-Pump model (J-385 / J-375 / J-365 / J-355 / J-345 / J-335)
• [ ] Confirm your spa has the CLEARRAY® on-demand UV-C sanitation system
• [ ] Note your existing board’s part number (6600-293 or 6600-364 indicates a direct match for the 6600-297 replacement)
• [ ] Check your existing topside panel part number — if it is not the 6600-715, plan to replace both board and topside together
• [ ] Disconnect all power at the main breaker and the external GFCI disconnect box
• [ ] Wait at least 5 minutes for capacitors to fully discharge
• [ ] Photograph every wire, harness, and connector position before removing the old board
• [ ] Inspect the temperature sensor (6600-166 type) — replace at the same time if aging or corroded

Electrical Requirements (US)

Requirement	Specification
Supply Voltage	Per J-300 spa data plate (typically 240 V / 60 Hz for US models)
Frequency	60 Hz (US standard)
GFCI Protection	Required (NEC Article 680)
Ground / Bonding	Mandatory equipment grounding and bonding per NEC Article 680
Dedicated Circuit	Required
Disconnect Box	Required within line of sight of spa (per NEC)
Wire Gauge	Per spa data plate and NEC ampacity tables

Setup Notes

• The 6600-297 and its matching 6600-715 topside are configured at the factory for J-300 LED 2-pump operation and CLEARRAY® on-demand sanitation. No user-adjustable DIP switches or jumpers are required for standard J-300 spa operation.
• Filter cycle timing and circulation pump runtime are programmable via the 6600-715 topside panel after installation.
• Refer to the installation documentation packaged with the board for the exact connector-by-connector wiring map.

💡 Tip: The J-300 LED Series uses 8-pin communication cabling between the board and the 6600-715 topside. Inspect this cable during installation — a damaged or corroded topside cable can cause erratic display behavior that mimics a board fault.

⚠️ Safety Warnings

Electrical Safety

• ⚠️ ALWAYS disconnect power at both the main breaker and the exterior GFCI disconnect box before any work
• ⚠️ Licensed electrician only — NEC Article 680 and most US local codes require it
• ⚠️ Verify GFCI protection is installed and tested
• ⚠️ Equipment grounding and bonding must comply with NEC Article 680
• ⚠️ Never operate the spa with the electrical compartment cover removed
• ⚠️ Do NOT use this board on 1-Pump J-325® or J-315® spas — the 6600-297 is 2-pump only; use 6600-296 for 1-pump models
• ⚠️ Do NOT pair this board with a non-SMT-2014 topside panel — the software handshake will fail and the spa will not operate correctly

Water & Electrical Safety

• ⚠️ Ensure no water ingress into the control box during installation
• ⚠️ Inspect all gaskets and seals; replace if damaged
• ⚠️ Never touch any electrical component with wet hands

Post-Installation

• ⚠️ Verify the 6600-715 topside displays correctly on first power-up — if the display is blank or shows gibberish, check the 8-pin cable and confirm board/topside pairing
• ⚠️ Verify CLEARRAY® on-demand UV cycle initiates during the first filter cycle
• ⚠️ Test the hi-limit function and GFCI trip before allowing bathers in the spa
• ⚠️ Monitor for error codes during the first 24 hours of operation

🔍 Error Codes & Troubleshooting

Common J-300 LED Platform Codes

Code	Meaning	Basic Troubleshooting
FLO	Pressure / flow switch fault	Clean filter; check plumbing blockages; inspect flow switch
OH / OHH / OHS	Overheating detected (106°F threshold)	Allow water to cool; verify circulation flow; check temperature sensor
Sn1	Hi-limit sensor malfunction	Check sensor connection; reset spa; replace sensor if out of spec
Sn3	Heater deactivated	Inspect heater breaker; test heater element continuity
ICE	Freeze-risk condition detected	Verify heater function; raise setpoint; check ambient temperature
Cool	Water temperature more than 20°F below setpoint	Verify heater operation; confirm heater breaker
TH1 / TH2 / TH3	Temperature probe failure	Test sensor resistance; replace temperature sensor (6600-166)

⚠️ Fault code behavior may vary slightly based on the specific J-300 model and topside firmware revision. Consult your spa’s owner’s manual for model-specific diagnostics.

🎯 Ideal Applications

Application	Suitability	Notes
♨️ 2014–2015 J-385 / J-375 / J-365 / J-355 / J-345 / J-335 replacing a failed 6600-293 or 6600-364	✅ Direct OEM replacement	Same mounting footprint; use with 6600-715 topside
♨️ Pre-2014 J-300 LED 2-pump spa upgrading to current-gen control	⚠️ Compatible with topside upgrade	Must replace the topside panel with 6600-715 at the same time
🛁 2014–2015 1-Pump J-325® or J-315®	❌ Not compatible	Use 6600-296 (1-pump variant)
🛁 2016–05/2018 J-300 Series	❌ Not compatible	Use 6600-784 (2-pump) or 6600-786 (1-pump)
🛁 06/2018+ J-300 Series	❌ Not compatible	Use 6600-420 / 6600-412 (encrypted boards)
🛁 Spa without CLEARRAY® on-demand	❌ Not compatible	This board is CLEARRAY® on-demand only

🤔 Frequently Asked Questions

Q: My spa is a 2014 J-375 and the existing board is labeled 6600-293. Is the 6600-297 a direct replacement? A: Yes. The 6600-297 is the current OEM replacement for the discontinued 6600-293 (chip 3.82) and 6600-364 (original version). It ships with the updated Micro Chip 3.83, which adds revised Summer Logic on top of the same 3.82/3.80 feature set.

Q: Does the 6600-297 support the CLEARRAY® on-demand function? A: Yes — in fact, CLEARRAY® on-demand support is required for this board. The 6600-297 is specifically designed for 2014+ J-300 LED spas equipped with the CLEARRAY® on-demand UV-C sanitizer. The board drives the CLEARRAY® cycle during heat calls and scheduled filter cycles.

Q: Do I also need a new topside control panel? A: Usually yes. The 6600-297 uses a software handshake with the 6600-715 SMT 2014 topside panel that is NOT backward-compatible with older topsides used on 6600-293 and earlier boards. If you are currently running the 6600-715 topside, you can keep it. If you have the older Jacuzzi J-300 topside (paired with 6600-293 / 6600-364), plan to replace the topside at the same time.

Q: Can I use this board on my 2014 J-325 or J-315? A: No. The 6600-297 is a 2-pump board. The 1-pump J-325® and J-315® spas use the companion 6600-296 board, which shares the same 3.83 chip family but has different pump-output hardware.

Q: My spa is a 2016 J-385. Will this board work? A: No. In 2016 Jacuzzi® redesigned the J-300 LED platform with new microprocessor-based boards that do not require a chip. 2016–05/2018 2-pump J-300 models use the 6600-784 instead. Contact Parts4Tubs for help identifying the correct board for your spa’s year.

Q: What is CLEARRAY® on-demand and how is it different from older CLEARRAY®? A: CLEARRAY® is Jacuzzi®’s UV-C ultraviolet water-sanitation system. The “on-demand” version activates the UV lamp only when the water is actively circulating through the UV chamber (during heat calls and filter cycles), which extends lamp life compared to the older constant-on CLEARRAY® design. The 6600-297 is specifically engineered for on-demand operation.

Q: What chip is installed on the 6600-297? A: The 6600-297 ships with Micro Chip 3.83 pre-installed. The 3.83 chip replaces the earlier 3.82 and 3.80 revisions and adds revised Summer Logic for more efficient warm-weather operation.

Q: Is this the same as Micro Chip 6660-289? A: Yes. Jacuzzi®’s internal part number for the Micro Chip 3.83 is 6660-289 — the same chip, listed under its formal Jacuzzi® chip part number.

Q: Do I need a licensed electrician? A: Yes. NEC Article 680 and most US local jurisdictions require a licensed electrician for all hot tub electrical work, and a permit may be required. Improper installation can cause fire, electrocution, or equipment damage.

Q: Is this an OEM or aftermarket board? A: The 6600-297 is the genuine OEM Sundance® / Jacuzzi® replacement board, factory-new with the latest Micro Chip 3.83 pre-installed.

Q: Is the board returnable if I order the wrong one? A: No. Per manufacturer policy, spa circuit boards are final sale and cannot be returned once purchased — regardless of whether the board has been installed. Confirming your spa year, model, pump count, topside panel, and CLEARRAY® system type before ordering is essential.

✅ Why Choose the 6600-297

• ✅ Genuine OEM Sundance® / Jacuzzi® replacement – factory-new with the latest Micro Chip 3.83
• ✅ Replaces both discontinued 6600-293 and 6600-364 boards in a single current part
• ✅ Includes revised Summer Logic for more efficient warm-weather operation
• ✅ Smart Logic energy-save algorithm reduces unnecessary circulation runtime
• ✅ Purpose-built for the Jacuzzi® Proprietary SMT 2014 control system
• ✅ Full CLEARRAY® on-demand UV-C sanitation support
• ✅ Backed by the Sundance® / Jacuzzi® manufacturer’s limited warranty

🇺🇸 Why Buy From Parts4Tubs

• ✅ US-based company with local support for Sundance® and Jacuzzi® spa owners
• ✅ Fast US shipping
• ✅ Expert help identifying whether your J-300 LED spa needs the 6600-297 (2-pump), 6600-296 (1-pump), or a different generation of board (6600-784 / 6600-786 / 6600-420 / 6600-412)
• ✅ Competitive pricing on current OEM boards
• ✅ Full manufacturer warranty support
• ✅ Matching companion parts in stock — 6600-715 topside panel, 6600-166 temperature sensor, and related J-300 LED service parts
• ✅ Help coordinating board + topside replacement when upgrading from older 6600-293 / 6600-364 spas

⭐ Summary

The Sundance® / Jacuzzi® 6600-297 is the current OEM replacement circuit board for 2014–2015 2-Pump Jacuzzi® J-300 LED Series spas (J-385®, J-375®, J-365®, J-355®, J-345®, J-335®) equipped with CLEARRAY® on-demand UV-C water sanitation. Factory-fitted with Micro Chip 3.83 (Jacuzzi® chip PN 6660-289), this board directly replaces the discontinued 6600-293 and 6600-364 boards and delivers updated Smart Logic energy-save behavior plus revised Summer Logic. It pairs exclusively with the 6600-715 SMT 2014 8-button topside panel — the two components must be matched because the software handshake is not backward-compatible with older topsides. For 1-Pump J-325® / J-315® models, use the 6600-296 instead. For 2016+ J-300 models, use a different-generation board. Non-returnable; confirm compatibility before ordering.

Finding and identifying a replacement Hot Tub Circuit Board (PCB)

If you are looking to replace a failed PCB on your Hot Tub’s spa pack, then quite often identifying the part that you need can be the hardest thing.

Firstly, you are looking for a model number on the actual circuit board itself. Having the model or serial of your hot tub is not going to help at this point, you need to find the number on the PCB itself.

Now, with certain brands of PCB, the number of the replacement PCB that you need is not going to match identically the one you are replacing. Why is that I hear you ask?

Well, normally, it is an updated version. This means that it might have updated firmware on the PCB or be a later revision. Normally, this means that the part number would be slightly different. This is usually indicated with a “12345678 -x” at the end of that part number where x indicated a firmware revision.

In some cases, there will be some following letters on the part number of the circuit board, “12345678 -x MAS” this can indicate that the PCB was used for an OEM meaning it was produced for a certain hot tub manufacturer and the letters identify the manufacturer.

This means if you source an original PCB, it will not have the letters, but will in most cases work just fine.

It can be confusing I know!

What if you can’t find a model number?

If you can’t find a model number on the PCB itself, then you need to look for a model number on the spa pack. Normally, there is a sticker on the outside of the spa pack that tells you the current ratings and input voltages etc and this will have a model number.

In general, most spa packs in the USA are manufactured by Balboa, Hydro-Quip, ACC or Gecko. I know I am generalising here, but if you have a spa pack that has the brand of your hot tub on, it will be an OEM so the key is identifying who made the original box.

From there, you can normally find an original PCB that you will be able to switch out.

For example, the Balboa VS (value series) is a very popular spa pack that has been used by multiple hot tub manufacturers under their own brand names. Whatever they have called it, strip it back and it is still a Balboa VS.

Visual Inspection

One of the most important things you can do when you are looking for a replacement is to visually inspect the PCB that you have versus the picture online of the replacement you are considering. They need to look the same even if there are the differences in firmware revisions or OEM part numbers, you should be visually replacing a PCB that looks like the one you have.

Configuring a replacement Hot Tub Circuit Board (PCB)

When you get a new PCB, you are more than likely going to need to configure it. Most PCBs have a number of different modes and setups that the can operate in. For this, you will need to manual or spec sheet to guide you.

For things like DIP switches, most of the time you can copy the settings from your original circuit board. You are looking for things like setting the voltage as a lot of PCBs can be configured to run on both 115V and 230V.

You may need to move jumpers or even wires to configure voltages – the key here is that you read the schematic and don’t expect the PCB to just work out of the box – it usually doesn’t.

Troubleshooting a Hot Tub Circuit Board (PCB)

Here are some common things you will see when you replace a PCB on a hot tub.

You press the buttons on the topside control and they don’t control the right parts (pumps or blower etc) – this is a mode configuration thing and you will either need to change some DIP switches on the PCB or an internal or low level programming mode on the topside control. Check the manual for how to do this.

You turn on the hot tub and it trips the breaker – it is not common for a new PCB to fail out of the box (I have not seen one yet!) However, a common mistake is that the voltage has not been set correctly. If it is set for 115V and then you try and turn it on, the current draw will be a lot more (twice) than expected and the breaker will trip.

To check this, unplug all of your kit – heater, pumps, blower and then turn on the PCB. If it trips with nothing plugged in, usually the voltage is incorrectly set and what is happening is that live current is being sent to the ground – because you have 4 wires into the PCB rather than 3. Current on the ground loop causes the trip. Check the settings to make sure it is configures for 230V.

It might not trip until you physically turn on a pump or a blower. As mentioned, if the pack is set to 115V and your pump is meant for 230V, it will draw twice the current at half the voltage and trip your breaker. Check the manual for info on how to set the voltage.