🔌 Sundance® / Jacuzzi® 6600-392 880 Maxxus® / Aspen® Spa Circuit Board (3-Pump with PermaClear® & Smart Logic)

The current OEM replacement PCB for 2005–2015+ Sundance® 880 Series Maxxus® and Aspen® 3-pump hot tubs equipped with PermaClear® ozone sanitation, UV counter, and Smart Logic energy-saving.

📋 Product Overview

The Sundance® / Jacuzzi® 6600-392 is the current OEM main circuit board for 2005–2015+ Sundance® 880 Series Maxxus® and 2012–2015+ Aspen® premium 3-pump hot tubs equipped with PermaClear® ozone sanitation, UV counter, indicator light, and Smart Logic energy-saving features. Shipping with IC Processor Rev 3.1A+ (Processor 3.0B or higher family), this board is the active OEM replacement for a three-generation chain of discontinued Maxxus® boards — 6600-155 (2005–Spring 2008, EPROM Rev 9.61A+), 6600-160 (Spring 2008–2011, EPROM Rev 9.61B+), and 6600-398 (2011–2015) — consolidating coverage into a single current OEM part.

This board is built on the Sundance® 880 NT (New Technology) 3-Pump platform, specifically engineered for the high-demand Maxxus® and Aspen® 3-pump configurations with a dedicated 24-hour circulation pump and comprehensive jumper-configurable logic for varying electrical service sizes (40 A / 50 A / 60 A). It includes the modern Smart Logic algorithm (introduced with the Processor Rev 3.x family) for energy-efficient circulation-pump operation, plus a UV counter and indicator light for tracking PermaClear® ozone lamp life.

⚠️ This board is 3-Pump only. For 2-Pump 880 NT spas (Optima®, Cameo®, Altamar®, Marin®, Majesta®, Capri®), use the companion 6600-390 (880 NT 2-pump with PermaClear®) instead. ⚠️ “May require slight logic change” when replacing a 6600-155, 6600-160, or 6600-398 — the current 6600-392’s Processor Rev 3.1A+ may need specific jumper configuration to match your spa’s original board logic. See the Board Functions section below for the complete jumper reference. ⚠️ This is NOT a drop-in for the older 850 NT Maxxus® (6600-094) — that is a different platform architecture for 2002–2004 Maxxus® spas with a different EPROM family (9.60B), topside panel (6600-866), and spa generation (850 Series, not 880).

✨ Key Features

• ✅ Current OEM Sundance® / Jacuzzi® replacement – factory-new with IC Processor Rev 3.1A+ installed
• ✅ Consolidates three discontinued Maxxus® boards – direct replacement for 6600-155, 6600-160, and 6600-398 in one current part
• ✅ 880 NT 3-Pump Platform coverage – 2005–2015+ Maxxus® and 2012–2015+ Aspen®
• ✅ PermaClear® ozone support with UV counter – modern ozone lamp life tracking with indicator light
• ✅ Smart Logic energy-saving algorithm – Processor Rev 3.1A+ efficient circulation operation
• ✅ 3 jet-pump outputs plus dedicated 24-hour circulation pump control
• ✅ Comprehensive jumper-configurable logic – two jumper banks (JP19 and JP9) for full spa-specific customization
• ✅ 60 Hz / 50 Hz selectable via jumper JP19-3
• ✅ °F / °C selectable via jumper JP19-1
• ✅ LED or incandescent lighting selectable via jumper JP19-5
• ✅ Heater logic selectable (40 A / 50 A / 60 A) via jumpers JP9-7 and JP9-11
• ✅ Factory reset capability via jumper JP9-15 (momentary use only)
• ✅ Built-in trouble log (JP9-1) and ILOC support (JP9-3)
• ✅ Covered by manufacturer’s limited warranty

🔧 Technical Specifications

Specification	Value
OEM Part Number	6600-392
Also Listed As	SD6600-392, SUN6600-392
Platform	Sundance® 880 NT (New Technology) 3-Pump
Spa Family	Maxxus® 880 Series, Aspen®
Current Processor	IC Processor Rev 3.1A+ (3.0B or higher family)
Processor Features	PermaClear®, UV counter, Indicator light, Smart Logic
Production Years Covered	2005–2015+ Maxxus®; 2012–2015+ Aspen®
Pump Configuration	3 pumps + dedicated 24-hour circulation pump
Sanitation System	PermaClear® ozone (supported with UV counter)
Replaces (Discontinued)	6600-155 (2005–Spring 2008 Maxxus®, EPROM Rev 9.61A+), 6600-160 (Spring 2008–2011 Maxxus®, EPROM Rev 9.61B+), 6600-398 (2011–2015 Maxxus®/Aspen®)
Companion Board (2-Pump 880 NT)	6600-390 (IC Processor Rev 1.1A)
Compatible Topside Panels	6600-854 (2009–05/2012 Maxxus®), 6600-882 (06/2012+), 6600-425 (2013–2015 Maxxus®/Aspen®)
Matching Power Transformer	6560-274 (240 VAC – 12 VAC)
Matching Sensors	6600-167 (temperature, box end connectors), 6600-110 (hi-limit)
Non-Returnable	✅ Yes — final sale
Warranty	Manufacturer’s limited warranty

📌 Electrical supply voltage is spa-model-specific. Maxxus® and Aspen® 3-pump spas typically ship configured for 240 V / 60 Hz service in the US market, with the specific amperage determined by your spa’s heater and pump configuration. The board’s jumper logic (JP9-7 for 60 A, default / JP9-11 for 40 A) must match your spa’s actual service. Always verify against your spa’s data plate before connecting power. No universal voltage/amperage rating is published for the bare 6600-392 PCB by the manufacturer, because the configuration depends on the specific Maxxus® or Aspen® spa model.

📌 Technical note on Maxxus® pump wiring: Per Sundance® documentation for the 1999+ Maxxus® platform, the 2nd pump relay is not located on the circuit board — it is an external component within the spa pack. This applies to the 6600-392 as well and is relevant during installation and troubleshooting.

🔗 Compatibility Guide

Covered Models

Model	Years	Configuration
♨️ Sundance® 880 Maxxus®	2005 – 2015+	3-pump with PermaClear®, UV counter, Smart Logic, 24-hour circ pump
♨️ Sundance® 880 Aspen®	2012 – 2015+	3-pump with PermaClear®, UV counter, Smart Logic, 24-hour circ pump

Boards Replaced by the 6600-392

Discontinued OEM	Production Years	Original EPROM	Status
6600-155	2005 – Spring 2008 Maxxus®	EPROM Rev 9.61A+	Discontinued → 6600-392
6600-160	Spring 2008 – 2011 Maxxus®	EPROM Rev 9.61B+	Discontinued → 6600-392
6600-398	2011 – 2015 Maxxus®/Aspen®	—	Discontinued → 6600-392

Compatible Topside Panels (by Spa Manufacturing Year)

Topside PN	Years	Description
6600-854	2009 – 05/2012 Maxxus®	880 Series 2-Pump trapezoid, 12-button with 12.5″ × 4.7″ overall size; the Maxxus® 3-pump configuration uses this panel with Pump 2 button operating both Pumps 2 and 3 on specific model-year combinations
6600-882	06/2012+	Intermediate 880 Series topside introduced June 2012
6600-425	2013 – 2015 Maxxus®/Aspen®	880 Series 2 or 3 Pump LCD topside with 7′ cord — covers 2013-2015 Aspen®, Marin®, Majesta®, Altamar®, Cameo®, Optima®, Maxxus®

⚠️ Topside transition points: Per Sundance® factory documentation, 01/2012 – 05/2012 used the 6600-854, and 06/2012 onward transitioned to the 6600-882. Then 2013–2015 moved to the 6600-425. Verify your topside panel part number before ordering replacement topsides.

Companion Board for 2-Pump Configurations

Part Number	Description
6600-390	880 NT 2-Pump with PermaClear® — Optima®, Cameo®, Altamar®, Marin®, Majesta®, Capri® (IC Processor Rev 1.1A); replaces discontinued 6600-164 and 6600-176

Companion Components

Component	Part Number	Notes
Power Transformer	6560-274	240 VAC – 12 VAC, Sundance® 600/750/800/850/Portofino/Sweetwater/Del Sol system boards
Temperature Sensor	6600-167	Box End Connectors, 800 Series (includes O-ring 6540-228)
Hi-Limit Sensor	6600-110	Temp/Hi Limit Sensor with Box Ends

NOT Compatible — Use a Different Board

Your spa	Correct Replacement
❌ 2002–2004 Sundance® 850 NT Maxxus® 3-pump	6600-094 (850 NT platform, EPROM Rev 9.60B+, topside 6600-866)
❌ Sundance® 880 NT 2-pump (Optima®, Cameo®, Altamar®, Marin®, Majesta®, Capri®)	6600-390
❌ Sundance® 880 LCD Series (2005 – Mid 12/2009)	6600-728 (1-speed P1) or 6600-730 (2-speed P1)
❌ Sundance® 880 SunTouch™ (2016 – 03/2018)	6600-779
❌ Sundance® post-SunTouch™ (04/2018+)	6600-386
❌ 1999–2001 Sundance® 850 Maxxus® with ISO-Pure salt	6600-094 (note: does NOT retain ISO-Pure salt support)
❌ Sundance® 680 / 780 Series	6600-720 (no circ) or 6600-726 (with circ)
❌ Jacuzzi® J-Series (J-200 / J-300 / J-400 / J-LX / J-LXL)	Different J-Series board required

🎛️ Board Functions & Controls

Jumper Bank JP19 — Regional / Display Configuration

Jumper	Function	ON	OFF
JP19-1	Temperature display	Celsius (°C)	Fahrenheit (°F) — US default
JP19-3	Supply frequency	50 Hz (Export)	60 Hz (US / North American default)
JP19-5	Lighting type	LED	Incandescent
JP19-7	NOT USED	—	—
JP19-9	NOT USED	—	—
JP19-11	NOT USED	—	—

Jumper Bank JP9 — System Logic Configuration

Jumper	Function	ON	OFF
JP9-1	Trouble Log	Enabled	Disabled
JP9-3	ILOC (Interlock)	Enabled	Disabled
JP9-5	NOT USED	—	—
JP9-7	60 A Logic	Allows 2 Pumps on with Heater	OFF = 50 A Logic (forces Heater OFF when more than 1 Pump is ON)
JP9-9	Pump 3 enable (on 6600-392)	Pump 3 enabled	Pump 3 disabled
JP9-11	40 A Logic	Forces Heater OFF with any Pump in Hi	Disabled
JP9-13	Blower + Pump logic	Only 1 Pump with Blower operates at a time	Blower, Pump 1, Pump 2 can operate simultaneously
JP9-15	Factory Reset	Recall All Factory Settings (momentary use only)	Must remain OFF during normal operation

📌 Important JP9-7 / JP9-11 note: Your spa’s electrical service size determines which of these heater-logic jumpers should be set. The three service sizes have different behaviors:

• 60 A service (JP9-7 = ON): Allows 2 pumps on with heater (most powerful configuration)
• 50 A service (JP9-7 = OFF): Forces heater OFF when more than 1 pump is ON
• 40 A service (JP9-11 = ON): Forces heater OFF with ANY pump in high speed

Mis-setting these jumpers can cause nuisance breaker trips or heater inefficiency. Verify your spa’s data plate service rating before setting JP9-7 and JP9-11.

📌 JP9-15 warning: The factory reset jumper is for momentary use only during initial setup or troubleshooting. Leaving it in the ON position during normal operation will cause the board to repeatedly reload factory settings on every power cycle. Always return this jumper to OFF after use.

Controlled Outputs

Output	Function
Pump 1	Primary jet pump (2-speed on Maxxus®)
Pump 2	Secondary jet pump (note: 2nd pump relay is external to the board per 1999+ Maxxus® specification)
Pump 3	Tertiary jet pump (Maxxus®/Aspen® 3-pump configuration, enabled via JP9-9)
Circulation Pump	Dedicated 24-hour circ pump with Smart Logic
Heater	Flow-through heater (per spa’s factory configuration, logic-switched per JP9-7/JP9-11)
PermaClear® Ozone	Supported with UV counter and indicator light
Blower	Supported (interacts with Pump logic per JP9-13)
Spa Lighting	LED or incandescent (selectable via JP19-5)
Topside Interface	6600-854 / 6600-882 / 6600-425 (by year)

🛠️ Installation Requirements

⚠️ IMPORTANT: Hot tub circuit board installation must be performed by a licensed electrician in compliance with NEC (National Electrical Code) Article 680 and all local codes. A permit may be required in your jurisdiction. Maxxus® and Aspen® spas are premium 3-pump units with significant electrical requirements (typically 50 A – 60 A service) — verify circuit sizing before starting.

Pre-Installation Checklist

• [ ] Confirm your spa is a Sundance® 880 Maxxus® (2005–2015+) or 880 Aspen® (2012–2015+)
• [ ] Confirm your spa has a 3-pump configuration (Pump 1, Pump 2, Pump 3)
• [ ] Confirm your spa has PermaClear® ozone sanitation
• [ ] Confirm your spa has a dedicated 24-hour circulation pump
• [ ] Note your existing board’s part number (6600-155, 6600-160, or 6600-398 indicates the direct upgrade path)
• [ ] Note your topside panel part number (6600-854 / 6600-882 / 6600-425 depending on spa year)
• [ ] Identify your spa’s electrical service rating (40 A / 50 A / 60 A) — this determines JP9-7 / JP9-11 jumper settings
• [ ] 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
• [ ] Photograph both jumper banks (JP19 and JP9) on the old board if they are visible — this preserves your current configuration for transfer to the new board
• [ ] Verify location of the external 2nd pump relay in your spa pack (per 1999+ Maxxus® spec, not on the circuit board itself)
• [ ] Inspect the PermaClear® ozone module (including UV lamp condition), circulation pump, all three jet pumps, hi-limit sensor (6600-110), and temperature sensor (6600-167) — replace if aging

Electrical Requirements (US)

Requirement	Specification
Supply Voltage	Per spa data plate (typically 240 V / 60 Hz for US Maxxus®/Aspen®)
Frequency	60 Hz (US standard — verify JP19-3 is 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 (Maxxus®/Aspen® typically require 50 A+ service)

💡 Installation tip: When replacing a discontinued 6600-155, 6600-160, or 6600-398 board with the current 6600-392, “slight logic change may be required” — the newer Processor Rev 3.1A+ uses the JP19 and JP9 jumper banks to replicate the behavior of each predecessor. Compare your old board’s jumper positions (if visible) against the JP19/JP9 tables above to establish the correct new-board configuration. Start by matching your spa’s electrical service size on JP9-7/JP9-11 before energizing.

💡 Topside year-matching tip: If you are also replacing the topside, match by spa year: 6600-854 for 2009–05/2012, 6600-882 for 06/2012+, 6600-425 for 2013–2015 Maxxus®/Aspen®. Older 880 LCD topsides (6600-860) are NOT compatible with the 880 NT platform.

⚠️ 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
• ⚠️ Verify external 2nd pump relay is functional — on 1999+ Maxxus® platforms, this relay is not on the PCB

Jumper Configuration Safety

• ⚠️ Verify JP9-7 / JP9-11 heater logic matches your spa’s service rating — 60 A, 50 A, or 40 A. Incorrect settings can cause nuisance breaker tripping or inefficient heating.
• ⚠️ Verify JP19-3 is OFF for US 60 Hz operation before energizing
• ⚠️ JP9-15 must remain OFF after factory reset use — leaving it ON causes repeated factory resets on every power cycle
• ⚠️ Verify JP19-1 matches your regional preference (OFF for °F in US default)

Platform / Compatibility Safety

• ⚠️ Do NOT install the 6600-392 on a 2002–2004 Maxxus® 850 NT — use the 6600-094 (different platform, different EPROM family, different topside)
• ⚠️ Do NOT install the 6600-392 on a 2-pump 880 NT spa — use the 6600-390
• ⚠️ Do NOT pair this board with an 880 LCD Series topside (6600-860) — the 880 NT platform uses a different communication protocol

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 topside panel displays correctly on first power-up
• ⚠️ Confirm all 3 pumps operate correctly (Pump 1 on both speeds; Pumps 2 and 3 single speed)
• ⚠️ Confirm the circulation pump starts and runs on its Smart Logic schedule
• ⚠️ Verify the PermaClear® ozone module activates and the UV counter / indicator light functions correctly
• ⚠️ Test the hi-limit function and GFCI trip before allowing bathers in the spa
• ⚠️ Check for any fault codes during the first 24 hours of operation

🔍 Error Codes & Troubleshooting

Common Indicator Codes (Sundance® 880 NT Maxxus®/Aspen® Platform)

Code	Meaning	Basic Troubleshooting
FLO	Pressure / flow switch fault	Clean filter; check plumbing blockages; inspect flow switch
OH / OHH / OHS	Overheating detected	Allow water to cool; verify circulation pump flow; check temperature sensor 6600-167
Sn1	Hi-limit sensor malfunction	Check sensor 6600-110 connection; reset spa; replace sensor if faulty
Sn3	Heater deactivated	Inspect heater breaker; test heater element continuity; verify JP9-7/JP9-11 logic matches service
TH1 / TH2 / TH3	Temperature probe failure	Test sensor resistance; replace temperature sensor (6600-167)
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
HFL	Heater flow / sensor discrepancy	Clean filter; verify circ flow; inspect temperature sensors
Pump 2 or Pump 3 not responding	External pump relay fault or JP9-9 mis-configured	Inspect external 2nd pump relay (Maxxus® 1999+ spec); verify JP9-9 = ON; verify topside button response
UV Indicator light on	PermaClear® UV lamp needs replacement per UV counter	Replace PermaClear® UV lamp; reset UV counter per manual

Trouble Log

The 6600-392 includes a built-in trouble log (enabled via JP9-1 = ON). When enabled, the board logs fault events that can be retrieved through the topside panel’s diagnostic menu. Consult your spa’s service documentation for retrieval instructions specific to your topside panel (6600-854, 6600-882, or 6600-425).

⚠️ Fault code behavior may vary based on specific Maxxus®/Aspen® model year and topside firmware.

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🎯 Ideal Applications

Application	Suitability	Notes
♨️ 2005 – Spring 2008 Maxxus® replacing a failed 6600-155	✅ Direct OEM replacement	Configure jumpers per spa service size
♨️ Spring 2008 – 2011 Maxxus® replacing a failed 6600-160	✅ Direct OEM replacement	Configure jumpers per spa service size
♨️ 2011 – 2015 Maxxus®/Aspen® replacing a failed 6600-398	✅ Direct OEM replacement	Configure jumpers per spa service size
♨️ 2012 – 2015+ Aspen® 3-pump replacing a failed board	✅ Direct OEM replacement	Aspen® debuted on 880 NT platform in 2012
♨️ 2014–2015 880 Maxxus®/Aspen® with PermaClear® + Smart Logic	✅ Direct OEM replacement	Processor Rev 3.1A+ includes Smart Logic
🛁 2002–2004 Maxxus® 850 NT (different platform)	❌ Not compatible	Use 6600-094 (850 NT, Rev 9.60B+)
🛁 2-pump 880 NT spa (Optima/Cameo/Altamar/Marin/Majesta/Capri)	❌ Not compatible	Use 6600-390
🛁 880 LCD Series, SunTouch™, or post-SunTouch™ spa	❌ Not compatible	Use appropriate platform board (6600-728/730/779/386)

🤔 Frequently Asked Questions

Q: My spa is a 2010 Sundance® Maxxus®. My existing board is a 6600-160. Is the 6600-392 the right replacement? A: Yes. The 6600-392 is the current OEM replacement for the discontinued 6600-160 (Spring 2008 – 2011 Maxxus®, EPROM Rev 9.61B+). It ships with the newer Processor Rev 3.1A+. You will need to configure the JP19 and JP9 jumpers on the new board to match your spa’s specific service size and preferences — see the Board Functions section for the full jumper reference.

Q: My spa is a 2013 Aspen®. Is the 6600-392 correct? A: Yes. Aspen® was introduced on the 880 NT platform in 2012, and the 6600-392 is the current OEM board for all 2012–2015+ Aspen® models. The 6600-392 also covers contemporaneous Maxxus® spas.

Q: My existing board is a 6600-398 and I’ve been told “may require slight logic change” to install the 6600-392. What does that mean? A: The 6600-392 uses the newer Processor Rev 3.1A+, which configures behavior through the JP19 and JP9 jumper banks rather than through fixed EPROM logic. “Slight logic change” means you may need to set specific jumpers (especially JP9-7 for 60 A logic, JP9-11 for 40 A logic, and JP9-9 for Pump 3 enable) to match your spa’s original configuration. Compare your old board’s jumper positions (if visible) to the JP19/JP9 tables on this page.

Q: My spa is a 2003 Maxxus®. Is the 6600-392 the right board? A: No. 2003 Maxxus® is on the older 850 NT platform (not 880 NT), and uses the 6600-094 board (EPROM Rev 9.60B+) with the 6600-866 topside panel. The 6600-392 is for 2005+ Maxxus® on the 880 NT platform. The two platforms use different EPROM architectures, different topside panels, and are NOT interchangeable.

Q: What’s the difference between the 6600-392 and the 6600-390? A: The two boards are both on the 880 NT platform, but for different pump configurations:

• 6600-390: 880 NT 2-pump with PermaClear® — IC Processor Rev 1.1A — for Optima®, Cameo®, Altamar®, Marin®, Majesta®, Capri®
• 6600-392: 880 NT 3-pump with PermaClear®, UV counter, Smart Logic — IC Processor Rev 3.1A+ — for Maxxus® and Aspen®

Q: My 2007 Maxxus® uses a topside labeled 6600-860. Will that work with the 6600-392? A: No. The 6600-860 is a trapezoid LCD topside from the 880 LCD platform (2000-2009 850/880 Altamar/Cameo/Marin/Optima + 2005-2008 Maxxus PWA — but the 2005-2008 Maxxus on 6600-860 is paired with 6600-728 LCD board, NOT the 880 NT platform). 880 NT Maxxus® spas use either the 6600-854 (2009–05/2012), 6600-882 (06/2012+), or 6600-425 (2013–2015) topside panels. Contact Parts4Tubs with photos of your existing topside and board to confirm which platform your specific 2007 Maxxus® is on.

Q: What jumper setting do I use for JP9-7 and JP9-11? A: These depend on your spa’s electrical service size (shown on the data plate):

• 60 A service: JP9-7 = ON, JP9-11 = OFF — allows 2 pumps on with heater
• 50 A service: JP9-7 = OFF, JP9-11 = OFF — forces heater off when more than 1 pump is on
• 40 A service: JP9-7 = OFF, JP9-11 = ON — forces heater off with any pump on high speed

Setting the wrong logic can cause nuisance breaker tripping or insufficient heating.

Q: Why does the description mention “2nd pump relay is not on the circuit board”? A: Per Sundance® documentation for the 1999+ Maxxus® platform, the 2nd pump relay is located externally in the spa pack rather than on the PCB. This is a Maxxus®-specific design detail — verify this external relay is functional during installation and troubleshooting.

Q: What is the UV counter / indicator light for? A: The Processor Rev 3.0B and higher family (including Rev 3.1A+ on the 6600-392) tracks cumulative PermaClear® UV-ozone lamp operating hours. When the counter reaches the lamp’s rated service life, the indicator light activates to remind you to replace the lamp. Reset the counter per your spa’s service documentation after replacing the UV lamp.

Q: What is Smart Logic? A: Smart Logic is Sundance®’s energy-saving circulation pump algorithm introduced with the Processor Rev 3.x family. It automatically deducts non-programmed circulation runtime (such as heat calls) from the next scheduled filter cycle to avoid over-running the circulation pump — saving energy without compromising water quality.

Q: Do I need a licensed electrician to install this? 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. Maxxus® and Aspen® 3-pump spas have particularly high electrical demand.

Q: Is this an OEM or aftermarket board? A: The 6600-392 is the genuine OEM Sundance® / Jacuzzi® replacement board, factory-new with the latest IC Processor Rev 3.1A+ 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. Confirming your spa’s model (880 Maxxus® or Aspen®, not 850 Maxxus®), year (2005+), pump count (3), and matching the correct topside panel before ordering is essential.

✅ Why Choose the 6600-392

• ✅ Genuine OEM Sundance® / Jacuzzi® replacement – factory-new with IC Processor Rev 3.1A+
• ✅ Consolidates three discontinued Maxxus® boards (6600-155, 6600-160, 6600-398) into one current part
• ✅ Engineered for the high-demand Maxxus®/Aspen® 3-pump configuration
• ✅ Modern Smart Logic energy-saving circulation pump algorithm
• ✅ PermaClear® UV counter and indicator light for ozone lamp life tracking
• ✅ Comprehensive jumper-configurable logic (40 A / 50 A / 60 A service, °F/°C, 50/60 Hz, LED/incandescent, blower interaction)
• ✅ Direct-fit mounting for 2005–2015+ Maxxus® and 2012–2015+ Aspen® equipment bays
• ✅ Backed by the Sundance® / Jacuzzi® manufacturer’s limited warranty

🇺🇸 Why Buy From Parts4Tubs

• ✅ Fast US shipping
• ✅ Expert help navigating the three-generation Maxxus® transition (6600-155 → 6600-160 → 6600-398 → current 6600-392) with correct jumper configuration
• ✅ Platform identification help — 850 NT Maxxus® (6600-094) vs 880 NT Maxxus® (6600-392 — this board) is the #1 customer ordering confusion; we verify before you order
• ✅ Competitive pricing on current OEM boards
• ✅ Full manufacturer warranty support
• ✅ Matching companion parts in stock — 6600-854 / 6600-882 / 6600-425 topside panels, 6560-274 power transformer, 6600-167 temperature sensor, 6600-110 hi-limit sensor, PermaClear® UV lamps, and related 880 NT Maxxus®/Aspen® service parts
• ✅ Platform-history expertise across seven generations of Sundance® 850/880 circuit boards (Original 850 Series → 850 NT → 850/880 LCD → 880 NT → 880 SunTouch™ → Post-SunTouch™, plus parallel LX-15 / Sweetwater platform)

⭐ Summary

The Sundance® / Jacuzzi® 6600-392 is the current OEM replacement circuit board for 2005–2015+ Sundance® 880 Maxxus® and 2012–2015+ Aspen® premium 3-pump hot tubs equipped with PermaClear® ozone, UV counter/indicator light, and Smart Logic energy-saving. Shipping with IC Processor Rev 3.1A+, it consolidates three discontinued predecessor boards — 6600-155 (2005–Spring 2008, EPROM Rev 9.61A+), 6600-160 (Spring 2008–2011, EPROM Rev 9.61B+), and 6600-398 (2011–2015) — into a single current OEM part. The 6600-392 operates on the Sundance® 880 NT (New Technology) 3-Pump platform, distinct from the older 850 NT Maxxus® (6600-094, 2002–2004). It features two jumper banks (JP19 for regional/display config and JP9 for system logic including 40 A / 50 A / 60 A heater logic) that may require “slight logic change” configuration when replacing a predecessor board. Pair with the year-appropriate 880 NT topside: 6600-854 (2009–05/2012), 6600-882 (06/2012+), or 6600-425 (2013–2015). For 2-pump 880 NT spas, use the companion 6600-390 instead. Per Sundance® documentation, the Maxxus® 2nd pump relay is located externally (not on the PCB) — verify during installation. Non-returnable; manufacturer’s limited warranty.

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.