ICM ICM2820 Furnace Control Board

The ICM ICM2820 furnace control board is a reliable OEM-replacement integrated control with ECM blower output, replacing Nortek part 1021575R for Intertherm/Nordyne/Miller/Revolv furnaces. It sequences the induced-draft blower, ignition, gas valve, and flame sense while monitoring system safeties and flagging faults through a diagnostic LED.

It runs on a 120 VAC, 60 Hz input with an 18–30 VAC control circuit, a 1/100 HP inducer, a 6.0 A hot surface igniter, and a 0.5 A gas valve.