KitchenAid Professional 5 Plus Mixer Control Board W10814992. Description This is the latest revision (C) of board W10814992 Speed Control for Stand Mixers. Brand is Whirlpool / KitchenAid. No knob, board only Features W10814992 Rev C Replaces others including AP3606228, PS889134, WP9706648 No knob, board only Stand Mixer Speed Control, AP3606228, PS889134, WP9706648, W10814992 No knob, board only OEM names and Numbers used for reference only.