Balboa Circuit Board - Advanced Spa Designs [LAS104] Digital Duplex (51628)

Type:	Circuit Boards
Mfr	Balboa Water Group
Mfg Part #	51628
Hzn Part #	59-138-1672

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TAGS: balboawater, circuitboards, gshop, spaparts

Details

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SEE REPLACEMENT PART: OBSOLETE

Digital duplex systems depend on the circuit board to coordinate every major function behind the scenes. This Advanced Spa Designs LAS104 board is built for compatible applications where that original logic layer has become the weak point, causing the spa to feel less predictable than it should.

What makes a board replacement valuable is that it addresses the real control center of the system. If heating, pumps, panel response, or general operation are starting to feel inconsistent, the issue may not be with the visible components at all. It may be the board that is no longer managing those functions correctly.

Because this board is tied to a specific LAS104 Digital Duplex application, matching the correct part matters. A properly selected board helps preserve the intended control logic and avoids the extra uncertainty that comes from trying to force a near-match into service.

Once installed in the right spa, this replacement helps restore a more unified and dependable pattern of operation, giving the homeowner a system that feels coordinated again instead of gradually coming apart function by function.

Circuit board for compatible Advanced Spa Designs LAS104 systems
Supports restoration of digital duplex control logic
Useful when overall pack behavior becomes inconsistent
Helps bring heating, pumps, and panel response back into sync
Strong replacement option for board-level spa control failures

Balboa Water Group – Spa Systems, Pumps, Heaters & Control Components

Who is Balboa Water Group?

Balboa Water Group is the world’s largest manufacturer of spa systems, components, and control technology, producing an estimated 70% of all hot tub systems globally. With decades of industry leadership, Balboa is the driving force behind many of the pumps, heaters, control packs, and circuit boards used by top spa brands. Known for innovation, reliability, and engineering excellence, Balboa has become the standard for spa system performance worldwide.

What products does Balboa Water Group specialize in?

Balboa specializes in complete spa system solutions, including control systems, topside panels, circuit boards, heaters, pumps, sensors, jets, and accessories. Their systems are designed to seamlessly integrate temperature control, water flow, filtration, and lighting. Balboa products are widely used in both new spa manufacturing and replacement parts, making them one of the most commonly sourced brands for hot tub repair and upgrades.

Why choose Balboa Water Group parts for your pool or spa?

Balboa parts are trusted for their compatibility, durability, and consistent performance across a wide range of spa systems. Because Balboa components are used in the majority of hot tubs on the market, finding compatible replacement parts is easier and more reliable. Their advanced control technology allows precise management of temperature, jet functions, and energy usage, helping extend equipment life while improving the overall spa experience.

How do you identify and choose the correct Balboa Water Group part?

To select the correct Balboa part, it’s important to match your existing system’s model number, circuit board type, heater configuration, and topside control compatibility. Checking labels on control packs and referencing wiring diagrams or product manuals ensures proper fit and function. Choosing the correct Balboa component helps maintain system efficiency, prevents compatibility issues, and ensures safe operation.

Need help finding the right Balboa Water Group part?

At Bath & Spa Parts Online, we carry a wide selection of Balboa Water Group pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.