Sundance® / Jacuzzi® 880 Series Control Board – 1‑ and 2‑Pump Systems (2016–03/2018) Part #6600‑779

Overview

Part 6600‑779 is the OEM main system control board used in 2016 through March 2018 Sundance® 880 Series hot tubs equipped with either 1‑pump or 2‑pump North American (60 Hz) configurations.

This board operates all primary spa functions including:

• Jet pump sequencing
• Heater logic
• Circulation timing
• ClearRay® UV readiness
• Lighting and auxiliary control

This is a non‑interchangeable, model‑specific board designed exclusively for mid‑2016 to early‑2018 880 Series hardware. It uses firmware Revision 1.23, unique to this generation.

6600‑779 was later replaced by 6600‑386, but the two boards are NOT interchangeable—each must match its exact production window and system architecture.

Compatible Spa Models & Years

✔ Sundance® 880™ Series

Model Years: 2016 – March 2018

Compatible models include:

• Optima®
• Cameo®
• Altamar®
• Marin®
• Cambria®
• Capri®

All above models shipped with 1‑ or 2‑pump 60Hz configurations during this period.

✖ NOT compatible with:

• Any 880 Series spa built after April 2018 (uses 6600‑386, 6600‑463, 6600‑512, etc.)
• Any 880 Series spa built before 2016
• 3‑pump 880 systems (use 6600‑514 or equivalent based on year)
• 780, 980, or 680 Series boards
• European 50Hz models

Technical Details

• System Type: Sundance® 880 Control Platform (2016 Revision)
• Supported Pumps:
  • Pump 1 – 2‑speed
  • Pump 2 – 1‑speed (if equipped)
• Voltage: 240V, 60 Hz
• Firmware: Rev. 1.23 (unique to this era)
• Topside Compatibility:
  • 2016–2018 880 Series LCD touch panels
• Features:
  • ClearRay® UV indicator logic
  • Smart Logic filtration
  • Low‑voltage lighting control
  • Fault logging & watchdog safety

Purpose & Performance

The 6600‑779 control board drives all essential 880 Series functions:

• Jet pump operation in 1‑ or 2‑pump configurations
• Heater regulation and overheat protection
• Circulation/filtration system timing
• Communication with 880 topside interface
• UV/PermaClear® logic (model‑dependent)
• Diagnostic fault monitoring (FLO, OH, LH, watchdog errors, etc.)

Replacing a failing board resolve issue such as:

• No heat
• Jet pump non‑response
• Dead or locked‑up topside display
• ClearRay® indicator not functioning
• Random resets or watchdog errors

Replacement & Related Components

✔ Replaced by (but NOT interchangeable with):

• 6600‑386 → Used April 2018–2020 (specific to later 880 logic)

✔ Other related system components:

• 6600‑510 / 6600‑446 — 880 Series LCD topside panels
• 6500‑XXX — 5.5kW stainless heater assemblies
• 6600‑167 / 6600‑110 — Temp/Hi‑Limit sensors
• ClearRay® UV ballast & lamp (various part numbers)

Ordering Notes

• This board is only for 880 Series spas manufactured 2016 – March 2018.
• NOT interchangeable with 6600‑386 or any other board family.
• Must match pump configuration (1‑pump or 2‑pump Sundance® 880 only).
• Ensure your spa’s serial prefix falls within the correct production window.
• All electronic parts are non‑returnable once shipped/installed.