Furnace Control Board Replacement Type OEM Board Type Integrated Compatible with Brand ICM White-Rodgers York OEM Replacement Part Number 265901 265902 50A56-242 50A56-243 50A56-956 539617 ICM2808 S1-03100662000 S1-03101250000 S1-03101266000 S1-03101267000 S1-03101267001 S1-03101284000 S1-03101933000 S1-03101972000 S1-03101973000 S1-03109167000 S1-33102956000 S1-33103010000 Control Voltage 25V Input Voltage 25V AC