420020007S Control Board Kit – Reliable Upgrade for MasterTemp and StaRite Pool and Spa Heaters Ensure heating performance and cost efficiency for your pool or spa system with the 420020007S Control Board Kit. Engineered for durability and precision, this replacement kit is compatible with a wide range of MasterTemp and StaRite heater models, offering seamless integration and longterm reliability. Key Features and Benefits Broad Compatibility Fits all MasterTemp NA and LP series electrical systems. Compatible with MasterTemp 200, 250, 300, 400, and 400HD control boards. Compatible with StaRite MaxETherm SR200NA, SR333NA, SE400NA, SR200HD, SR333HD, and SR400HD control boards. Quality Construction Built with FR2 copper foil laminate for robust electrical performance. Upgraded solidstate capacitors for enhanced stability and reliability. precision soldering techniques ensure secure component connections. SR waterproof coating delivers insulation, moisture resistance, and protection against leakage. Enhanced Performance Features improved solidstate capacitors and power chips for dependable operation. Incorporates upgraded optocoupler and regulated power modules for advanced protection against overheating, overvoltage, and short circuits. Designed for faster output control and greater energy efficiency, resulting in consistent and effective heating. Function and ProblemSolving Reduces pump run time and improves heating efficiency, lowering operational costs. Resolves common issues such as heater failing to start, display not illuminating, or slow water heating. Ensures faster response times and dependable heater operation for uninterrupted comfort. Practical Use Scenarios Ideal for homeowners needing a quick, reliable fix when a pool heater control board malfunctions or fails. Suitable for commercial pool and spa facilities seeking costeffective maintenance without sacrificing performance. for seasonal property managers preparing systems for demand periods, ensuring consistent heating. Material and Build FR2 copper foil laminate construction designed for long service life. Protected with SR waterproof coating to withstand outdoor and humid conditions. Specifications Model: 420020007S Control Board Kit Compatibility: MasterTemp NA and LP series, MasterTemp 200–400HD, StaRite MaxETherm series (SR200NA, SR333NA, SE400NA, SR200HD, SR333HD, SR400HD) Features: Solidstate components, precision soldering, waterproof coating, safety protection modules Choose the 420020007S Control Board Kit to restore your pool or spa heater's reliability, improve efficiency, and prevent costly downtime. Designed to meet original specifications, it delivers consistent heating performance with easy installation and lasting durability.