Topside Arctic TSC-90

The Arctic TSC-90 Topside Control is the complete replacement topside controller for Arctic Spas equipped with the TSC-90 Arctic. Includes the controller PCB, display, button cluster, and housing as a single sub-assembly. The TSC-90 is the next-generation evolution of the TSC-80 lineup with refined button layout and updated label design.

When you'll need to replace it: Topsides eventually fail from one of: a cracked display from impact or freeze damage, dead or unresponsive buttons after years of use, water intrusion past the gasket between the topside and the spa shell, or controller PCB failure (display lights up but no controls respond).

Will this fit my spa? Yes, on Arctic Spas originally equipped with the TSC-90 Arctic topside. If your spa has an older TSC-80, see the Topside Arctic TSC-80. Just need to refresh worn button labels? See the TSC-90 Arctic Topside Overlay instead.

Important: Topside replacement involves disconnecting the cable at the motherboard. Most spa owners book a service tech — the cable routing and connector seating are easy to misalign and result in intermittent display issues if not done carefully. Bring the old topside to one of our three Ontario showrooms for matching if you're unsure of the model.