Description
The Gecko S-Class Control System with a 4.0kW heater is a legacy powerhouse built for reliable spa performance. Designed for 120/240V operation and configured with P1, P2, Oz, and Lt wiring options, this control module remains a trusted choice for technicians and dedicated spa owners maintaining older Gecko-based systems. Note: this item has been discontinued by the manufacturer, but its proven reliability and broad compatibility continue to make it a practical replacement in many legacy setups.
Key features that keep your spa running smoothly
- 4.0 kW heater, dual-voltage capability: Supports 120V or 240V supply, delivering dependable heat delivery across a range of spa sizes and insulation conditions.
- Two pump channels with flexible speed: Pump1 and Pump2 can be configured for 1-speed or 2-speed operation, enabling tailored circulation and jet experiences.
- Blower compatibility and optional circulation: Built to integrate with a 120/240V blower; an optional circulation pump helps maintain consistent water flow and filtration.
- JJM Cords wiring configuration (P1, P2, Oz, Lt): Engineered for straightforward wiring and dependable electrical connections, simplifying installation in compatible spa models.
- Extensive replacement compatibility: Replaces a wide range of OEM part numbers, making it a practical choice for refurbishing older spas that rely on S-Class control logic.
Why this Gecko S-Class makes sense for your spa
For service professionals and do-it-yourself owners working with legacy Gecko equipment, the S-Class offers:
- Proven performance in real-world spa environments—reliable control logic that has powered countless hydrotherapy sessions over the years.
- Broad compatibility with older models—designed to replace a wide array of discontinued part numbers, reducing the need for custom wiring overhauls.
- Flexible installation options—P1 and P2 pump circuits, plus ozone (Oz) and lighting (Lt) wiring support, enabling cohesive retrofits in varied spa configurations.
Ideal candidates
- Technicians maintaining or restoring older spas that previously used Gecko S-Class control systems.
- Homeowners seeking a reliable, long-term replacement for a legacy spa control that still delivers solid heat and pump control.
- Retrofit projects where two-pump operation and a 4.0kW heater are essential for achieving comfortable operating temperatures.
Practical considerations and tips
Before installing, confirm your spa’s electrical supply matches the 120/240V requirement and that the P1/P2, Oz, and Lt connectors align with your existing harness. Given the discontinued status, it’s wise to source genuine replacement harnesses and consult a qualified spa technician to ensure safe wiring, proper heater calibration, and correct pump sequencing. This Gecko S-Class variant with JJM Cords is particularly well-suited for repairs and refurbishments where consistent heat, reliable pump control, and legacy compatibility are priorities.
Note: This product is a discontinued-by-manufacturer Gecko component. It remains a robust option for compatible, older spa systems where proven performance and historical compatibility are essential for continued operation.

