【Compatible With】42002-0007S control board kits are broadly compatible with all Pentair MasterTemp LP and NA series pool and spa heater electrical systems, compatible with Sta-Rite Max-E-Therm SR200NA control board, SR333NA control board, SE400NA control board, SR200HD control board, SR333HD control board, SR400HD control board and compatible with MasterTemp 200 control board, MasterTemp 250 control board, MasterTemp 300 control board, MasterTemp 400 control board, MasterTemp 400HD control board 【Superior Quality】The 42002-0007S control board kit includes upgraded solid-state capacitors, high-precision soldering technology, and a robust SR waterproof coating. We use better technology to ensure superior quality of our products 【Superior Performance】The 42002-0007S control board kit equipped with an improved optocoupler module and a regulated power module, it provides overheat, overvoltage, and short circuit protection. These enhancements result in faster output control and more efficient operation of heater, ensuring optimal heating performance. Not only energy-saving but also safer 【Superior Function】42002-0007S control board kits are designed to improve the efficiency and performance of your swimming pool and spa heaters.By reducing the running time of the pump and improving heating efficiency can help reduce operating costs.If your control board cannot start the heater, the monitor does not light up, or the water heating is slow, it can effectively solve these problems.This design ensures better heating performance, faster response time, and more reliable operation 【Easy To Disassemble and Install】Firstly, remove the old circuit board by turning off all power, turning on the top of the heater, and removing the four screws that secure the circuit board in place. Remove the 472610Z switch film pad from the board, and then unplug the wire connector connected to the old board Twist the circuit board back and insert the 472610Z switch film pad into the connection where the ribbon cable is accepted. 【Important Notice】Before purchasing, please check if your control board is compatible with this product. After the installation is completed, please ensure that the power supply is normal and that the connection points are securely installed without any looseness. 【Compatible With】42002-0007S control board kits are broadly compatible with all Pentair MasterTemp LP and NA series pool and spa heater electrical systems, compatible with Sta-Rite Max-E-Therm SR200NA control board, SR333NA control board, SE400NA control board, SR200HD control board, SR333HD control board, SR400HD control board and compatible with MasterTemp 200 control board, MasterTemp 250 control board, MasterTemp 300 control board, MasterTemp 400 control board, MasterTemp 400HD control board