A furnace control board  is similar to a computer control board. It’s the furna…

A furnace control board is similar to a computer control board. It’s the furna…


A furnace control board is similar to a computer control board. It’s the furnace’s brain. It operates all functions, in the order they are to occur. It controls everything the furnace does each heating cycle.

Left picture is a bad control board
Right picture is new control board


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