Control Board Kit 420020007S 461105 with 472610Z Switch Pad Compatible with Pentair MasterTemp 400/300/250 and StaRite MaxETherm SR400/SR333/SR200 Product overview This control board kit is a direct replacement assembly that includes the control board (part numbers 420020007S and 461105) and the user interface switch pad (part number 472610Z). It restores control functions and user input for compatible pool and spa heaters, allowing the unit to operate as intended without replacing the entire heater. Key benefits Restores functionality: Replaces faulty or unresponsive control electronics and membrane switch pad to heater controls to normal operation. Exact fit compatibility: Designed to match the listed heater control interfaces for straightforward replacement on compatible MasterTemp and MaxETherm models. Simplifies repairs: Replacing the board and switch pad together minimizes troubleshooting time and reduces the need for additional parts. Cost effective maintenance: Enables of the control components rather than replacing a complete heater controller assembly. What is included Control board assembly: 420020007S and 461105 Replacement switch pad: 472610Z Compatibility Compatible with Pentair MasterTemp models 400, 300, and 250 Compatible with StaRite MaxETherm models SR400, SR333, and SR200 Features and function Function: Replaces the main control electronics and the front panel switch pad to restore user interface and control signals. Installation: Intended as a like for like replacement; mounts and connector locations match the compatible heater models for a direct swap. Performance: Returns the original control functionality of the heater, addressing issues caused by failed boards or worn switch pads. Typical applications a failed control board on a MasterTemp 400 heater that will not respond to front panel commands. Service a MaxETherm SR333 with a damaged or unresponsive switch pad to restore user input and temperature control. Keep one kit as a service spare for pool maintenance teams to reduce downtime during seasonal start up or routine repairs. Notes Verify model compatibility and part numbers before installation. Installation should be performed by a qualified technician familiar with pool heater controls and electrical safety.