Looked up the model number on the internet. Ordered and received the replacement User Interface the following day. Removed 2 screws under the mounting lip, then the 2 screws mounting panel. Unplugged 4 connectors carefully and removed the bad panel. Plugged in connectors onto the new panel, mounted the new panel with the 2 screws, followed with the lip. The replacement took about 5 minutes to remove and replace. Works perfectly.