DCS WOS-230 wall oven will not always heat up to temperature

SOURCE: dcs oven display dim - need part #

I just did this same repair...same part number as above (Part #211696 "Electronic Oven Control, Double).
to install you have to remove two screws on the top of the display section of the oven, as well as several screws on the bottom of it, and the screws holding the close pin/temperature probe socket.
Then you can pull off the whole top section (slowly) and remove the two connectors to the existing control unit.
Then release the ribbon cable connected to the control unit on the inside of the top section (press the two small pins inward and slide up the small front section of the black socket to release the ribbon connector.
Unscrew the old control panel, screw in the new one, connect the ribbon, and then reverse removal steps. Easy!

SOURCE: dcs oven display dim - need part #

Thanks Folks... saved me some $$$ on my DCS-WO-227BK !
Part ordered direct cost $87 vs. part ($140) + labor ($125) from service agency.
Turn off power (50 amp circuit switch in electical panel), removed some screws and replaced part #211696 (DCS EOC DOUBLE DSP) as outlined by duder999.