Here's a parts breakdown much like your unit although not the exact same model number ttp://www.appliancepartspros.com/partsearch/model.aspx?model_id=46828
The part number for the control board is AP3467952 (Control, h1 (clock/n
from this site
The keypad is part number AP3464230 (Panel, control (wht)
I would check the keypad itself first. But if needed you can get both parts from here for a little more than he stated for replacing the control board.
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