42002-0007s, 461105 Upgraded Control Board Kit with 472610Z Switch Pad for Pentair MasterTemp & Sta-Rite Max-E-Therm NA & LP Series Pool/Spa Heaters

Replacement control board kit compatible with 42002-0007S control board kits for Pentair MasterTemp LP and NA series pool and spa heater electrical systems. Also fits Sta-Rite Max-E-Therm models SR200NA, SR333NA, SE400NA, SR200HD, SR333HD, SR400HD control boards and MasterTemp units 200, 250, 300, 400, 400HD. This upgraded board uses high-quality solid-state capacitors, precision soldering techniques and a durable SR waterproof coating. It includes an enhanced optocoupler module plus a regulated power module that protects against overheat, overvoltage and short circuits while providing faster output control for more responsive heater operation. Designed to raise heater efficiency and performance, the kit can reduce pump run time and lower operating costs. It effectively addresses common faults such as heaters that won’t start, monitors that fail to light, or systems that heat water slowly. Installation is straightforward: turn off power, remove the old circuit board by taking out the mounting screws and unplugging the wire connector, then install the new board and insert the 472610Z switch film pad. Important: verify compatibility before purchase and confirm normal power supply and secure electrical connections after installation.