Emerson Electric Co. 50M58-242-01B1 Furnace Control Board, also listed as 59-5173, is a 24V control board from Emerson for furnace applications. Identified by the 50M58-242-01B1 part number with an alternate listing of 59-5173, this board serves as the low‑voltage control module that interfaces with the furnace’s control circuitry.
