420020007S Control Board Kit with 472610Z Switch Membrane Pad Compatible with Pentair MasterTemp NA and LP pool and spa heater electrical systems What this kit does Replaces the main control board and the associated switch membrane pad to restore the electrical control functions of compatible pool and spa heaters. Replaces nonresponsive frontpanel switches and a failing control board that can cause operational interruptions. Key benefits Complete replacement kit: includes control board 420020007S and switch membrane pad 472610Z so you get both the electronic controller and the user interface component in one . Compatibility: Built to work with Pentair MasterTemp NA and LP heater electrical systems, reducing guesswork when sourcing the right parts. Minimizes downtime: Replacing both the board and membrane pad addresses common failure points and gets heaters back to regular operation more quickly. Simplifies repairs: One kit contains the components typically needed for troubleshooting control and switch issues, helping service technicians and homeowners perform focused repairs. Primary functions and attributes Function: Electronic control board that manages heater electrical operations, paired with a flexible membrane pad that registers frontpanel switch inputs. Included parts: Control board 420020007S and switch membrane pad 472610Z. Fit and connections: Intended for direct compatibility with the listed heater electrical systems to match original mounting and connector locations. Form factor: Standard replacement control board and membranestyle switch pad designed for the same physical footprint as the original components. Practical use scenarios Homeowner replacement: a failed control board and sticky or unresponsive frontpanel switches to restore manual control of a MasterTemp NA heater. Field by a technician: Carry the kit for quick onsite diagnostics and replacement when a MasterTemp LP heater exhibits control faults or erratic switch behavior. Preventative maintenance: Install the kit when performing an overhaul on older heaters to aging electronic controls and worn switch membranes before failures occur. What to check before installation Confirm compatibility with the specific heater model by verifying the heater uses the Pentair MasterTemp NA or LP electrical system. Power down the heater and follow all manufacturer guidelines and local electrical codes during replacement. Inspect connectors and mounting points to ensure proper seating of the board and membrane pad. This kit provides the control board and membrane pad components needed to restore electrical control functionality on compatible pool and spa heaters. Use it when addressing control faults, unresponsive frontpanel switches, or when performing routine electronic control maintenance.