Furnace Control Board Compatible with Carrier Bryant Payne, 24VAC. Trusted by Thousands of Happy Customers. Replacement for Listed Part Numbers:Designed to replace HK42FZ034 and other listed furnace control board numbers in compatible Carrier, Bryant and Payne single-stage gas furnaces. Replaces HK42FZ013, HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011, HK42FZ016, 325878-751, CEBD431012-01A and CEPL131012-01. Verify your old board number before ordering. Controls Key Furnace Components:Microprocessor-based board controls the gas valve, ignitor, blower motor, inducer motor, humidifier and electronic air cleaner connection. Supports 24 VAC single-stage furnace operation. Safety Functions with LED Diagnostics The HK42FZ034 control board has a built-in diagnostic LED displays fault codes for troubleshooting. Supports ignition failure lockout, gas valve shutoff function, reverse polarity protection and brownout detection. Unmatched quality and durability. Installation and Fitment Notes:Built for listed replacement applications with compatible mounting and wiring layout. Before ordering, verify your board number, furnace model, 24 VAC system voltage and connector configuration. Professional installation recommended; disconnect power before service. For Listed Furnace Repair Applications When replacing a furnace control board, matching the board number is the most important step. This 24 VAC control board is designed for use with compatible Carrier, Bryant and Payne single-stage gas furnace applications that use the listed replacement numbers. Replacement Numbers Compatible with, HK42FZ013, HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011, HK42FZ016, 325878-751, CEBD431012-01A and CEPL131012-01. Please confirm the number on your old board before ordering. System Control This board manages key furnace components, including the gas valve, ignitor, blower motor, inducer motor, humidifier connection and electronic air cleaner connection. LED diagnostics help display fault codes for service troubleshooting. Before Installation Check furnace model, 24 VAC voltage, connector configuration and mounting layout before installation. Professional installation is recommended. Disconnect power before service. Compatibility Notice This is a compatible replacement part. Product names and part numbers are used only to identify compatibility. Alternative Carriers – We may use alternative carriers e. To ensure your package arrives safely and on time. Your feedback is extremely important to us. We strive to provide the best products and customer service possible. We are committed to resolving any problems and ensuring your satisfaction. We stand behind every product with superior quality and service. Thank you for your business!