About this circuit board
The Balboa VS511 Circuit Board G1960 is an expander circuit board designed for 2-speed pump systems in Balboa-equipped spas. This OEM replacement part controls main pump operations and integrates seamlessly with VS511 and 511SZ control systems, ensuring reliable performance for your spa’s circulation and jet functions.
At Bubbles Supply, we guarantee this circuit board is the exact fit for your system, backed by our comprehensive 1-year warranty and same-day shipping on in-stock orders. Our OEM Balboa parts meet factory specifications for dependable operation and longevity. Before installation, verify your existing board’s part number matches VS511 G1960 and ensure power is disconnected during replacement to protect both the new board and your spa’s electrical system.








