Control Board Kit 420020007S Direct Fit Replacement for Master Temp 200 250 300 400 Pool and Spa Heaters

Part number 420020007S control board kit with switch pad designed as a direct replacement for Master Temp 200, 250, 300, and 400 pool and spa heaters. Compatible with NA and LP series electrical systems for straightforward or maintenance. Key benefits Restores control and user input: replaces a failed or unresponsive control board and switch pad to bring heater controls back to normal operation. Direct compatibility: fits Master Temp 200, 250, 300, and 400 models and works with NA and LP series electrical systems, reducing troubleshooting and partmatching time. Simple installation: designed to plug into existing harnesses and mounting locations for faster replacement during routine service or emergency repairs. Durable construction: includes a printed circuit board and responsive switch pad built to handle regular use and outdoor equipment environments. Cost effective option: enables targeted replacement of the control module and keypad without replacing the entire heater assembly. Features and specifications Part number: 420020007S Function: control board kit with integrated switch pad for user interface and system control Compatibility: Master Temp models 200, 250, 300, 400; compatible with NA and LP series pool and spa heater electrical systems Form factor: replacement control board and keypad assembly sized to match original equipment mounting and connectors Materials: electronic printed circuit board and durable switch pad material engineered for repeated button actuation Common use scenarios Homeowner : a worn or damaged keypad and control board after buttons become unresponsive or display feedback is lost, restoring normal heater operation without calling for a full unit replacement. Seasonal maintenance: Swap in a fresh control board kit during preseason service to ensure reliable control response and reduce the chance of heater downtime during peak use. Technician service call: Keep as a stocked replacement part for quick field repairs on NA and LP series pool and spa heaters, enabling sameday fixes and reduced service time. Installation notes Intended as a direct replacement for specified models and electrical systems; follow the heater manufacturer service manual for disassembly, wiring verification, and safety precautions during installation. Verify part number compatibility before installation to ensure correct fit and connector alignment. This control board kit with switch pad provides a practical replacement solution for restoring control functionality on compatible pool and spa heaters.