XMK Flow Switch Replacement for Q-12DS-C2 | Sundance, Jacuzzi & Sweetwater Spas

Keep your spa running smoothly with the XMK Flow Switch Replacement

The XMK Flow Switch Replacement is designed as a direct substitute for part 2560-040 (Q12DS-C2), offering a reliable upgrade for select Sundance Spas, Jacuzzi Hot Tubs, and Sweetwater Spas. This flow switch supports 60"Cable routing, curled finger connectors, and standard hose connections, with clear indicators to help you diagnose flow issues without guesswork. The package consolidates essential parts into one convenient kit, allowing you to restore flow and minimize downtime after a fault code appears.

Built for practical, real‑world spa maintenance, this unit emphasizes visibility, compatibility, and ease of install. The clear tee housing lets you observe flow and debris at a glance, while the 3/4 inch hose connections and 3/8 inch freeze line connection cover common plumbing configurations. Clear error messages FL1 and FL2 are preserved to keep you informed about system status as you troubleshoot.

Key benefits at a glance

• Compatibility ready: replaces part 2560-040 for a wide range of Sundance, Jacuzzi, and Sweetwater models.
• Flexible installation: includes a 60" cable and standard hose fittings for diverse spa layouts.
• Clear diagnostics: FL1 and FL2 indicators help identify flow-related issues quickly.
• Visible flow path: clear tee housing enables easy inspection for debris or obstruction.
• Comprehensive kit: comes with flow switch, tee housing, sealant tape, and hose clamps for a complete swap.

What’s included

• 1 x Flow Switch with Cable
• 1 x Tee Housing
• 1 x Sealant Tape
• 3 x Hose Clamps

Real‑world use and installation notes

In a typical service scenario, replacing the faulty flow switch can restore normal water flow and eliminate error codes that halt spa operation. The curled finger connectors are designed for compatible pump configurations, while the clear housing helps you verify fluid movement during testing. The 60" cable supports routing behind control panels or across tight spaces, reducing the need for extra disassembly. As with any replacement, verify model compatibility in the product description to ensure a seamless fit.

Whether you’re maintaining a Sundance 980 Series spa or a Sweetwater model from the early 2000s, this flow switch offers a practical path back to relaxed soaks and reliable performance. Remember to follow standard safety practices when servicing your spa and consult your model’s manual if you’re unsure about the plumbing connections.