Waterway NEO 2100 Circuit Board Assembly, 775-0010B

Waterway 775‑0010B NEO 2100 Circuit Board Assembly — the exact replacement PCB used in Waterway NEO 2100 spa packs 

This board is the brains of the Waterway NEO 2100 spa pack. It manages:

• Pump 1 / Pump 2 outputs

• Heater control

• Temperature sensor inputs

• Topside panel communication

• Ozone / blower outputs (depending on configuration)