This board solved my problem with an older Bryant furnace. The install was straightforward due to the consistent board layout and labeling of connections. The manual helped with a few important details for a diy repair.
50M56U-751 control board conversion for Cairer Bryant HK42FZ011 Board
Instalation was pretty well straight forward. look at the 6 1/4 terminals in a row this is the area where the line neutral wires go the description is under the plastic rail hard to see,well thought out all wires and harnesses included flashing troble codes will now be diferent than the factory ones . Follow instuctions in the booklet and you should be fine. I installed this item Oct 29 2017 all test passed
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