In.K506 Topside Control

The In.K506 Topside Control is the complete replacement Gecko-based topside controller for Arctic Spas Classic Series tubs. Includes the controller PCB, display, button cluster, and housing as a single sub-assembly. Standard fitment on the Arctic Spas Classic Series — the entry-level series in the lineup.

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 Classic Series tubs originally equipped with the In.K506 topside. If you have a Custom Series spa with a different topside (TSC-80 or TSC-14), you need a different replacement. Just need to refresh worn button labels? See the In.K506 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.