PRG364GD - Instructions

The sole review for this part by Andrew was most helpful and accurate with one exception: he said that there were two nuts Which needed to be removed in order to pull off the front knob panel. There were actually two on each end for a total of four, which confused me, as I wondered if I had the right ones. Another thing that would be helpful for somebody considering doing this repair is to know that it takes a deep quarter inch socket With two 6 inch extensions to reach these nuts through holes in the interior side panels. Also, take a look at the replacement potentiometers, and you’ll see that there’s a slot that can be lined up so that they can be pulled off the side of the shaft rather than off the front of the shaft. This repair took me about six hours. I’m mechanically inclined and work methodically, but since I’ve never done this repair before it was quite time-consuming.

Removed knobs and venturies. Unplugged electrical inputs. Lifted top plate. Replaced potentiometer. Replaced parts and plugged in electric supplies. Tested. Piece of cake, except for locating replacement potentiometer.

Found the service manual for Thermador CT130/CT230 online, which provides fine step-by-step instructions for this replacement (on page 2-21 in the version of the manual that I found).

It's service manual 92-02-020 (this is the March 1999 version). Should be able to find it for FREE download on several sites. Here's just one example:

http://www.uncleharrywizard.com/nephewclub/wizardrange/bosch/92-02-020-thermador-ct-27-.pdf


Good luck!