Pool Heater Control Board Replacement Kit Compatible with Pentair MasterTemp and StaRite MaxETherm Replacement for part numbers 420020007S, 461105, 472610Z Includes membrane switch pad What this kit does Restores full control functionality for compatible pool heaters by replacing a malfunctioning control board and the user input pad. Resolves common symptoms such as failure to ignite, unresponsive controls, incorrect temperature display, and frequent error codes. Provides a direct replacement for the listed part numbers to minimize troubleshooting and downtime. Key benefits Direct compatibility: Matches the original connections and mounting points for Pentair MasterTemp and StaRite MaxETherm heaters, simplifying installation and reducing the need for modifications. Complete kit: Includes the main control circuit board and the membrane switch pad so both electronics and the user interface are replaced at once. Reliable user interface: The included membrane switch pad restores tactile panel control and improves responsiveness of frontpanel buttons. Faster repairs: Suitable for technicians and DIY installers who need a straightforward swap to get the heater back into service quickly. Clear function restoration: Reestablishes ignition control, temperature setpoint management, status indication, and basic diagnostics that the original board provided. Important attributes Function: Electronic control board for gas pool heaters with integrated control logic and user interface support. Compatibility: Replacement for 420020007S, 461105, 472610Z and compatible with Pentair MasterTemp and StaRite MaxETherm models. Included items: Control board and membrane switch pad. Form factor and fit: Compact board and panel pad sized to original components without altering heater enclosures. Performance: Restores original control behavior and panel responsiveness when installed correctly. Typical applications Home pool heater : a failed control board on a residential MasterTemp heater after the unit fails to start or displays persistent faults. Maintenance technician service kit: Carry as a field replacement to quickly MaxETherm units during scheduled maintenance or emergency calls. Commercial pool facility upkeep: Swap both board and membrane pad to resolve intermittent control issues and the heater to reliable operation. Installation notes Power must be turned off and the heater disconnected from its power source before attempting replacement. Verify compatibility by matching part numbers and connectors before installation. Consult the heater service manual or a qualified technician for detailed installation and testing procedures. Contents of this kit Control circuit board (replacement for 420020007S 461105 472610Z) Membrane switch pad for frontpanel controls This control board kit offers a practical, direct replacement option for restoring control and user interface functions on compatible pool heaters.