⚡ Jacuzzi® J-400 LCD Series Spa Circuit Board (J-480, J-470, J-465, J-460) – 2006 to Mid 12/2009 – DISCONTINUED

Legacy OEM control board for the 2006 – Mid 12/2009 Jacuzzi® J-400 Collection — superseded by the current 6600-728 OEM replacement.

💧 Product Overview

The Jacuzzi® J-400 LCD Series Spa Circuit Board is the original OEM main PCB supplied in Jacuzzi® J-480, J-470, J-465, and J-460 hot tubs manufactured from 2006 through mid-December 2009. This single board platform was sold under three successive Jacuzzi® / Sundance® OEM part numbers over its production life — 6600-098 (2006 – 2008, EPROM revision 9.51A), 6600-161 (2008 – mid 12/2009, replaced the 6600-098 in Fall 2008 with EPROM revision 9.51B), and 6600-180 (universal interim replacement) — all of which share the same mounting footprint and wiring layout.

All three of these legacy OEM part numbers have been discontinued by Jacuzzi® and replaced by the current OEM board 6600-728, a microprocessor-controlled board that does not require an EPROM chip. The 6600-728 is a direct-fit replacement for every 2006 – mid 12/2009 J-480, J-470, J-465, and J-460 spa with a 1-speed Pump 1 configuration. This board controls both jet pumps, the heater, the PermaClear Hi-Flow circulation pump, ozonator output, LED or incandescent lighting, temperature regulation, and all associated diagnostics. For J-400 spas manufactured after mid-December 2009, Jacuzzi® transitioned to a sealed J-1000 load box (6600-305 and later generations) — this page does not apply to those later systems.

⚠️ DISCONTINUED – Current OEM Replacement

Your spa’s original board	Current OEM replacement
6600-098 (2006 – 2008, EPROM 9.51A)	6600-728
6600-161 (2008 – Mid 12/2009, EPROM 9.51B)	6600-728
6600-180 (2008 – Mid 12/2009 universal)	6600-728 (if Pump 1 is 1-speed)

📌 Pump 1 check: The 6600-728 is the correct replacement when Pump 1 is a 1-speed jet pump, which is the factory configuration for 2006 – mid 12/2009 J-480, J-470, J-465, and J-460 models. If your spa has been modified and Pump 1 is now a 2-speed jet pump, order the 6600-730 instead.

📌 Post mid-12/2009 J-400 spas: These use the sealed J-1000 load box system (6600-305 for 60 Hz North American models). This page and the 6600-728 replacement do not apply — contact Parts4Tubs for J-1000 load box replacement options.

✨ Key Features (Legacy Board Platform)

• ✅ Full Jacuzzi® J-400 LCD Series compatibility — covers J-480, J-470, J-465, and J-460 spas from model years 2006 – mid 12/2009
• ✅ Three legacy OEM part numbers on one platform — 6600-098, 6600-161, and 6600-180 share the same footprint
• ✅ 1-speed Pump 1 + 1-speed Pump 2 + PermaClear Hi-Flow circ pump — original J-400 factory configuration
• ✅ Dedicated heater control — drives the J-400 Hi-Flow 5.5 kW, 240 V heater (Note: 5.5 kW / 240 V is the factory heater specification for 2006 – 2009 J-480, J-470, J-465, J-460 models)
• ✅ Ozonator output — supports OEM ozone sanitation system
• ✅ LED or incandescent lighting — jumper-selectable on the replacement board
• ✅ °F / °C display toggle — jumper-selectable (factory OFF = °F for US market)
• ✅ 60 Hz US operation — jumper-selectable (factory OFF = 60 Hz)
• ✅ ILOC spa control lock — parental lockout via topside panel
• ✅ Trouble log diagnostic memory — records fault codes for service reference
• ✅ Multi-mode pump/heater amperage logic — 40 A, 50 A, and 60 A configurations
• ✅ Microprocessor-based on current replacement — newer 6600-728 eliminates the EPROM/Dallas chip of the original 9.51A / 9.51B boards
• ✅ Non-returnable — all spa circuit boards are final sale

🔧 Technical Specifications

Specification	Value
Product Family	Jacuzzi® J-400 LCD Series main PCB
Applicable Models	J-480, J-470, J-465, J-460
Applicable Years	2006 – Mid 12/2009
Status	Legacy OEM chain discontinued – replaced by current 6600-728
Legacy OEM PNs	6600-098, 6600-161, 6600-180
Current OEM Replacement	6600-728
Supply Voltage	240 V (J-480 / J-470 / J-465 / J-460 are factory-configured 240 V / 60 Hz spas)
Frequency	60 Hz (US market – JP19-3 jumper OFF)
Heater	Hi-Flow 5.5 kW / 240 V factory heater (Note: applies to 2006-2009 J-480, J-470, J-465, J-460 specifically)
Jet Pump Outputs	2 (Pump 1 + Pump 2, both 1-speed in factory configuration)
Circulation Pump	PermaClear Hi-Flow required (Sundance®/Jacuzzi® 6500-907 or 6000-907)
Ozonator Output	Yes
Light Output	LED or incandescent (jumper-selectable)
Temperature Sensor	Sundance®/Jacuzzi® 6600-167
Hi-Limit Sensor	Sundance®/Jacuzzi® 6600-168
Flow Switch	Sundance®/Jacuzzi® 6560-646
Topside Panel	Jacuzzi® 20318-001 LCD topside
Original Logic Chip (2006–2007 boards)	EPROM 6660-328 (Rev. 9.51A)
Original Logic Chip (2008–2009 boards)	EPROM 6660-268 (Rev. 9.51B)
Current Board Logic	Microprocessor – no EPROM required
Non-Returnable	✅ Yes

🔗 Compatibility Guide

Covered Jacuzzi® J-400 LCD Models

Model	Years Covered	Notes
♨️ J-480	2006 – Mid 12/2009	Original: 6600-098 / 6600-161 / 6600-180 → Current: 6600-728
♨️ J-470	2006 – Mid 12/2009	Original: 6600-098 / 6600-161 / 6600-180 → Current: 6600-728
♨️ J-465	2006 – Mid 12/2009	Original: 6600-098 / 6600-161 / 6600-180 → Current: 6600-728
♨️ J-460	2006 – Mid 12/2009	Original: 6600-098 / 6600-161 / 6600-180 → Current: 6600-728

Also Covered by the Same 6600-728 Replacement Board

Spa Line	Years	Notes
♨️ Jacuzzi® J-300 Series (LCD display)	2006 – 2009	Same board platform with 1-speed Pump 1
♨️ Sundance® 880 Series – Altamar®, Cameo®, Capri®, Marin®, Optima®, Majesta®	2005 – 4/2009	Same board platform with 1-speed Pump 1 and PermaClear circ pump

Not Covered (Do NOT Use 6600-728)

Spa	Replacement
❌ Jacuzzi® J-385 (3-pump)	Not supported by 6600-728
❌ J-480 / J-470 / J-465 / J-460 after Mid 12/2009	Requires complete J-1000 load box (6600-305 for 60 Hz)
❌ J-400 models with 2-speed Pump 1	Use 6600-730 instead

Legacy OEM Parts Chain (How Your Original Board Was Replaced Over Time)

Original OEM	Replaced By	Then Replaced By	Current OEM
6600-098 (2006–2008)	6600-161 (Fall 2008)	6600-180	6600-728
6600-161 (2008 – Mid 12/2009)	—	6600-180	6600-728
6600-180 (universal interim)	—	—	6600-728 (if 1-speed Pump 1)

Compatible Topside / Sensors / Circ Pumps

Component	Part Number
Topside panel	Jacuzzi® 20318-001 (Sundance® 6600-860 equivalent)
Temperature sensor	6600-167 (box-end connector)
Hi-limit sensor	6600-168 (box-end connector)
Flow switch	6560-646
PermaClear Hi-Flow circ pump	6500-907 or 6000-907
Heater (2006–2009 J-400 Hi-Flow)	5.5 kW / 240 V Hi-Flow heater

⚠️ Always verify your original board part number and Pump 1 speed before ordering.

🎛️ Board Functions & Controls

Jumper Bank Reference (Carried Forward to 6600-728 Replacement)

Jumper	Function	Factory / US Setting
JP19-1	Temperature scale	OFF = °F (US), ON = °C
JP19-3	Operating frequency	OFF = 60 Hz (US), ON = 50 Hz
JP19-5	Light output	ON = LED, OFF = Incandescent
JP9-1	Trouble log	ON = Enabled, OFF = Disabled
JP9-3	ILOC control lock	ON = Enabled, OFF = Disabled
JP9-7	Pump + heater logic	ON = 60 A logic (2 pumps + heater), OFF = 50 A (heater off with >1 pump)
JP9-9	Pump 2 enable	ON = Pump 2 enabled on 6600-728 / 6600-730, OFF = Disabled
JP9-11	40 A logic	ON = Heater off with any pump in HI, OFF = Disabled
JP9-13	Pump + blower timing	ON = Only 1 pump w/blower at a time, OFF = All simultaneous
JP9-15	Factory reset	MUST REMAIN OFF during normal operation

📌 US 60 Hz setting is critical: JP19-3 must be OFF for correct heater timing, pump logic, and filter cycle operation on US Jacuzzi® J-400 spas.

Heater Control

Feature	Specification
Heater Type	Jacuzzi® J-400 Hi-Flow flow-through heater, 5.5 kW, 240 V
Temperature Range	Standard Jacuzzi® factory range (80°F – 104°F / 26.7°C – 40°C)
Hi-Limit Protection	Yes – via 6600-168 hi-limit sensor
Flow Verification	Yes – via 6560-646 flow switch, triggers HFL / FL codes on fault

Pump Control Outputs

Output	Factory Configuration
Pump 1	1-speed jet pump (factory for 2006 – Mid 12/2009 J-480/J-470/J-465/J-460)
Pump 2	1-speed jet pump
Circ Pump	PermaClear Hi-Flow, 24-hour operation

Additional Outputs

Function	Capability
Lighting	LED or incandescent (jumper-selectable)
Ozonator	Yes
Blower	N/A in the J-400 PermaClear configuration

🔌 Installation Requirements

Pre-Installation Checklist

• [ ] Confirm your spa year is between 2006 and mid-December 2009 (post-mid-12/2009 J-400 spas use the J-1000 load box)
• [ ] Confirm your original board part number (6600-098, 6600-161, or 6600-180)
• [ ] Confirm Pump 1 is a 1-speed jet pump (if 2-speed, order 6600-730 instead)
• [ ] Confirm your spa uses a PermaClear Hi-Flow circulation pump (6500-907 or 6000-907)
• [ ] 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 and connector position before removing the old board
• [ ] Inspect temperature sensor (6600-167), hi-limit sensor (6600-168), and flow switch (6560-646) — replace any that are aging or discolored

Electrical Requirements (US)

Requirement	Specification
Supply Voltage	240 V (per spa data plate)
Frequency	60 Hz (JP19-3 jumper OFF)
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

Required Companion Parts

Component	Part Number
Temperature sensor	6600-167
Hi-limit sensor	6600-168
Flow switch	6560-646
Circulation pump	6500-907 or 6000-907
Topside panel	20318-001 (Jacuzzi®) or 6600-860 (Sundance®)

💡 Tip: Replace both sensors (6600-167 and 6600-168) at the same time as the board if they are more than five years old. Aging sensors are the most common cause of post-installation SN / TH / OH error codes.

🛡️ 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 and most US local jurisdictions require it for spa work
• ⚠️ Verify GFCI protection is installed and tested (required by NEC Article 680)
• ⚠️ 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 (6600-728) if Pump 1 on your spa is a 2-speed pump — you need 6600-730 instead
• ⚠️ Do not use this board if your spa is a post-mid-12/2009 J-400 model — you need a J-1000 load box replacement

Water & Electrical Safety

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

Post-Installation

• ⚠️ Verify JP19-3 is OFF for 60 Hz US operation
• ⚠️ Verify JP9-15 is OFF (factory-reset jumper must not be left ON)
• ⚠️ 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

Flow / Pressure Codes

Code	Meaning	Basic Troubleshooting
FL1	Flow / pressure switch not closing when pump running	Clean / replace filter; inspect flow switch 6560-646 and plumbing
FL2	Flow / pressure switch closed when pump off	Inspect switch for debris; test for electrical fault
FLO	Pressure switch / blockage fault	Clean filter; inspect for plumbing obstructions
LF	Persistent low flow	Clean filter; confirm water level; check circ pump
HFL	Heater-flow discrepancy	Clean filter; verify flow; inspect temperature sensors

Heater & Temperature Sensor Codes

Code	Meaning	Basic Troubleshooting
Sn1	Hi-limit sensor malfunction (shutdown)	Check sensor connection; reset spa; replace 6600-168 if faulty
Sn3	Heater deactivated	Inspect heater breaker; test heater element continuity
OH / OHH / OHS	Overheating detected	Allow water to cool; confirm flow; check thermostat
TH1 / TH2 / TH3	Temperature probe failure	Test sensor resistance; replace 6600-167 if out of spec

Other Common Codes

Code	Meaning	Basic Troubleshooting
pd	Operating on backup battery	Verify main power source; reset panel
Cool	Water temperature 20°F below setpoint	Adjust heater settings; confirm heater operation
ICE	Freeze-risk condition detected	Verify heater function; raise setpoint; insulate equipment
ILOC	Spa locked via control panel	Unlock through topside panel

🎯 Ideal Applications

Application	Suitability	Notes
♨️ Jacuzzi® J-480 / J-470 / J-465 / J-460 (2006 – Mid 12/2009)	✅ Direct OEM replacement	Use 6600-728 for 1-speed Pump 1 configuration
♨️ Jacuzzi® J-300 LCD Series (2006 – 2009)	✅ Compatible	Same 6600-728 platform
♨️ Sundance® 880 Series (2005 – 4/2009)	✅ Compatible	Altamar®, Cameo®, Capri®, Marin®, Optima®, Majesta®
🛁 J-400 spas after Mid 12/2009	❌ Not compatible	Requires J-1000 load box (6600-305)
🛁 J-400 spas with 2-speed Pump 1	❌ Not compatible	Use 6600-730
🛁 Jacuzzi® J-385 (3-pump)	❌ Not compatible	Requires different 3-pump board

🤔 Frequently Asked Questions

Q: My spa is a 2007 Jacuzzi® J-480 with a board labeled 6600-098. What do I order? A: Order the current OEM replacement 6600-728. The 6600-098 (EPROM revision 9.51A) was replaced by the 6600-161 in Fall 2008, and the 6600-161 was subsequently replaced by the 6600-728, which is the current supported part. The 6600-728 is microprocessor-based and does not require an EPROM chip.

Q: My board says 6600-161 with EPROM revision 9.51B. Can I just order another 6600-161? A: The 6600-161 has been discontinued. The current OEM replacement is the 6600-728, which is a direct-fit replacement for every 6600-161 installation in 2006 – mid 12/2009 J-480 / J-470 / J-465 / J-460 spas with 1-speed Pump 1.

Q: What if I have a 6600-180 board? A: The 6600-180 was used as a universal interim replacement. If it was installed in a 2006 – mid 12/2009 J-400 spa with a 1-speed Pump 1, order the 6600-728. If your Pump 1 is a 2-speed pump, order the 6600-730 instead.

Q: How do I tell if my J-400 is pre- or post-mid-12/2009? A: Check the serial number plate inside the equipment bay for the manufacturing date. Post-mid-12/2009 J-480 / J-470 / J-465 / J-460 spas use the sealed J-1000 load box system (6600-305 for 60 Hz North American), which is a complete assembly, not just a PCB. The 6600-728 does not fit these later systems.

Q: What heater does my 2006-2009 J-400 spa use? A: The factory heater for 2006 – 2009 J-480, J-470, J-465, and J-460 spas is a Hi-Flow 5.5 kW / 240 V heater. It is compatible with the 6600-728 replacement board.

Q: Can I keep my existing topside panel? A: Yes. The Jacuzzi® 20318-001 LCD topside panel (and its Sundance® equivalent 6600-860) used with the original 2006 – mid 12/2009 J-400 spas is fully compatible with the 6600-728 replacement board.

Q: Will my existing sensors still work? A: Yes — both sensors used with the original boards are still current: 6600-167 (temperature) and 6600-168 (hi-limit). Replace them at the same time if they are old or showing intermittent error codes.

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: What warranty is included? A: The current OEM 6600-728 replacement board carries a manufacturer’s limited warranty of 6 months. Contact Parts4Tubs for full warranty terms.

Q: Is the board non-returnable? A: Yes. Per manufacturer policy, spa circuit boards are final sale and cannot be returned once purchased. This is why confirming your spa year, original board part number, and Pump 1 speed before ordering is critical.

🏆 Why Choose the Current OEM Replacement

• ✅ Direct-fit OEM replacement — same mounting footprint as the original 6600-098 / 6600-161 / 6600-180
• ✅ Current microprocessor logic eliminates the EPROM / Dallas chip of earlier revisions
• ✅ Updated heater and pump logic with refined amperage management
• ✅ Surface-mount heater terminals on later revisions for reliable connections
• ✅ Full compatibility with original sensors, flow switch, topside panel, and circ pump
• ✅ Covered by manufacturer’s limited warranty
• ✅ Supported by US-based technical teams

🇺🇸 Why Buy From Parts4Tubs

• ✅ US-based company with local support for Jacuzzi® and Sundance® spa owners
• ✅ Fast US shipping
• ✅ Expert help identifying whether you need the 6600-728 (1-speed Pump 1) or 6600-730 (2-speed Pump 1)
• ✅ Competitive pricing on current OEM replacement boards
• ✅ Full manufacturer warranty support
• ✅ Companion parts in stock — temperature sensors (6600-167), hi-limit sensors (6600-168), flow switches (6560-646), topside panels (20318-001 / 6600-860), and PermaClear Hi-Flow circ pumps (6500-907 / 6000-907)
• ✅ Help matching legacy OEM part numbers (6600-098, 6600-161, 6600-180) to the correct current replacement

💫 Summary

The original Jacuzzi® J-400 LCD Series circuit board supplied in J-480, J-470, J-465, and J-460 spas from 2006 through mid-December 2009 — sold as OEM part numbers 6600-098, 6600-161, and 6600-180 — has been discontinued. The current OEM replacement is the 6600-728, a microprocessor-based board that is a direct-fit replacement for all 1-speed Pump 1 configurations on the J-400 LCD platform. It also covers Jacuzzi® J-300 LCD (2006 – 2009) and Sundance® 880 Series (2005 – 4/2009) spas. Spas with 2-speed Pump 1 require the 6600-730 instead, and J-400 spas manufactured after mid-12/2009 require a complete J-1000 load box replacement. Spa circuit boards are non-returnable — verify your year, original part number, and pump configuration 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.