The ICM282B is a low cost, Carrier OEM Replacement Furnace Control Board. Popular replacement for Carrier HK42FZ004/007/008/009/011/013/ 016/034 Controls gas valve, ignitor, blower motor, inducer, humidifier and air cleaner Microprocessor-based Designed for 100% gas shutoff in case of ignition failure Twinning compatible with other ICM282B boards Reverse polarity protection Secondary brownout voltage protection Compatible with a 24 VAC standard thermostat Provides diagnostic LED to aid in troubleshooting