100330278 Control Board - Main for KBX0400 KBN600-800 This is a click-to-call button

This is a click-to-call button which will open your smartphone's keypad

FOR WHB 055

For KBL600

FOR WHB 055-085

if you do not have

100330278 Control Board - Main for KBX0400 KBN600-800 This is a click-to-call buttonNot Sure What Part You Need? For AO Smith, State, or Lochinvar equipment, if you do not have, or do not know what part number you need, please use our Part Inquiry Form and we will help you determine the correct part for your application. GO TO PART INQUIRY FORM The Part Inquiry form will open in a new browser tab which makes it super easy to copy details of the part you are viewing on this page onto the inquiry form! Prefer to talk to a Live Person?