I have a thermador double oven 4 years old with a recent dim display on the clock and no display if the oven is on.
I have ordered the control kit which should has been shipped recently. I have been told this will correct the problem?
Does the oven need to be pulled to replace the main power relay or can this be accessed from the front of the oven without pulling it?
I am not sure by looking at the schematics.
I have a whirlpool washer that when it spins it makes a loud rubbing noise, I checked the coupling between the pump and motor and it was good. What could it be?
You did very good job!
Gene.
Thank you so much for your Fix! It worked like a charm for me. I now still have an unrelated problem, and was wondering if you had any ideas?
The touch buttons for the lower oven are unresponsive, except the "off" button that beeps appropriately when touched? I assume since it is a grouping of buttons, there must be a problem in a common circuit component??
Thanks again for your great tip!!
When you replace the capacitors 2 x 470 uf 35V, and one 68 uf 35v
WERE THOSE THE NEW ONES AND WHAT WERE THE OLD ONES.
— Begin quote from Goober;54715
Turn off the power - remove the keyboard panel and metal plate it attaches to. Remove the board attached to the metal plate (not the keyboard/board). Replace 3 capacitors (2 x 470 uf 35V, and one 68 uf 35v…highest temp you can get is 125 C.
— End quote
This worked perfectly for me! Kudos to you for this suggestion. $0.56 in parts from a electronic supply house here in San Jose and 7 minutes of my friends time (I am a crappy solderer) and the oven works perfectly!
This worked great. I am not a great solderer, but it only took me an hour start to finish. Saved me hundreds.
Thanks again.
— Begin quote from Goober;54715
Success !!
First of all I am in automotive electronics…and have design experience with vaccuum flourescent displays.
Our new double oven display got dimmer and dimmer over 2-3 years…the replacement board was $250 - with no promise it wouldn’t do the same thing 2 years from now…
Dim display is a function of the drive voltages to it. A transformer creates these - and the DC voltage is stabalized by capacitors. The capacitors are only rated to 105 C - which means over time the heat will reduce the capacitors capacitance…lowering the drive voltage and diming the display.
Turn off the power - remove the keyboard panel and metal plate it attaches to. Remove the board attached to the metal plate (not the keyboard/board). Replace 3 capacitors (2 x 470 uf 35V, and one 68 uf 35v…highest temp you can get is 125 C.
Display works like a charm…for $10 in parts from radio shack… best is WHEN the display gets dim…its a straightforward fix… I was actually thinking of puting in a computer fan to keep the top of the oven cooler… but thats another day.
— End quote
After reading problems with several ovens going dim with their LED display light, I came to this conclusion: pay ~$500 for a service visit and new display board :mad: or try replacing the capacitors (3) that are typically found on these boards 
. I have read posts that these things go out (lose their capacitance) and hence you start struggling to see the clock and oven temp.
I have a Thermador oven, 5 yrs old, and have zero experience repairing these things. Also, I have never soldered before and didn’t know where to buy a "cap". But here’s how I did it.
Took my oven apart (pulled out a trim piece), unscrewed 2 screws, and got to my display board. Unplugged 3 cables attached to this board. Took my board to Radio Shack. Picked up solder and "solder braid." Apparently, all the high school kids have been buying all these CAPS
and RS didn’t have the ones I was looking for.
My board had 3 CAPS. I read a helpful post online stating try and get the same uF (measure of capacitance) on the CAP, same or slightly higher operating voltage, and a "high temp" CAP. All of the details should be printed on your CAP that you are replacing. So again, just used that as a starting point.
I called around town and found 3 places that sold CAPS. None had all of the ones I was looking for and none had CAPS rated for a higher 125C temp. I needed to replace two 470uF at 35V (105C) and one 68uF at 35 V (also rated at 105C).
I got the 3 replacement CAPS (2- 470uF at 35 V) and (1-68uF at 68V at 85C). I used solder braid which sucked up the solder that allowed me to pull the old CAPS out. I then used a thin diameter solder to set mine in the board. My 68uF CAP was slightly bigger than the old one, but it fit.
I plugged it in, put things back together, and flipped the breaker back on. Voila…success! Just like new with a bright display. I’ll probably have to do this again in 4-5 yrs, but at least I am not paying $500 for a part that will do this same thing again. All in all, I spent about $25 (would have spend only $7 if I had the solder stuff already) and about 3 hrs (much of it driving around).
Give it a try. If you don’t have experience like me, the worst thing is you get a new board or place a service call. If you are having this problem, just might save you a lot of $$. Good luck. 
BTW - please read these 2 helpful posts. This is what I followed.
http://****************.com/wp/2009/01/28/cheap-fix-for-a-dim-display-on-an-oven-control-panel/
Solder info:
http://www.epemag.wimborne.co.uk/desolderpix.htm
Thanks much for the information. I had the oven for 6 years and the display went completely dim. After giving up on Thermadore support, I google and found your feedback. By following your instructions it was very easy for me to take the display board out, I got the three capacitors (105C) at Digikey in one day. A quick and easy solder task to replace the capacitors and we are back in business – the display is bright almost as new. Thanks again.
— Begin quote from Goober;54715
Success !!
Ok board is out… looking for C3 capacitor.
Not found.
I have capacitors C6, C54, C50, and C34.
None were the 35v.
i have a Whirlpool double oven that had the F2 E6 error.
Every one says replace the capacitors.
I’m good with that… only I don’t find the C3 capacitor.
As I’m looking at the back of the board (display on other side) the board is discolored where the C6 and C54 caps are.
C6 cap is 50v 2.2uf 105c
C54 cap is 50v 33 uf 105c
C50 cap is 63v 100uf 105c
C34 cap is 63v 100uf 105c
Oven model# RBD505PDT14 Whirlpool Double Oven
What am I missing here?
— End quote
Check this tread
It may help
Thanks to all the successful DIYers on this forum who fixed their Thermadore oven display, I decided to do the same.
The 3 caps mentioned 2x 470 and 1x 68uF are the ones I replaced and, voila, the display is now functional.
Mine is a double oven, SCD302 (though the control system seems to be the same across the line).
It was an uneventful replacement. Unlike other boards described in this thread, mine had 2 caps well accessible, whie the 3rd (a 470) was obscured by the display which folds over the board. Initially, it appeared touch to pry open, but it gave with a little pressure. There is a rubbery rectangle in the middle that bonded the display to the back of the board (it was a bit of a mystery why the display would not bend away until I saw this).
Parts–I got them from Digikey, and I could only find 105C rated caps. I did not even bother with the local Frys or RS. A local South Bay (SF) component store call Anchor did not carry the high temp version–85C is the standard rating.
Definitely seems to be a common problem with the Thermadores. Thanks again to the contributors here.
I just replaced the 68uf capacitor and the display is working.
Thanks for all the advice on this Dim display problem and the money you save.
Greetings all…glad several others have gone the DIY route and also fixed their oven displays. I posted this a few years ago and came across this site again given I had bookmarked it back in '09 for future reference. I am sure I will be doing ths again. Fortunately, I’m on my 2nd year and our display still works fine.
What I have not heard is why these oven displays dim over time. I assume the heat that goes up to these boards slowly degrades the CAPS? Who knows…just glad this has been fixed for several of us.
Cheers…
I have a Jenn-Air double oven with a similar display and dimming so I searched this issue and came to this board. I followed this advice and replaced the 3 caps with parts I got from digi-key for about $7.50 with shipping and my display works fine.
P/Ns 4511PHBK-ND for the 68 uF 35V(68V) 125C & 493-4503-1-ND for the 2pcs 470uF 35V 125C
Since my oven has a fan that blows out the hot air when s certain temperature is reached inside the top of the control panel area, I’m not certain that an extra fan inside would help much. I feel that some insulation might be a better solution to try to prevent the oven heat from reaching the display control board. I fixed mine before the display got so dim that I couldn’t read it and it took about a total of 30 minutes…the hardest part was prying up the glass VF display to get to one of the caps under it for removal and re-soldering and I only had to raise it to about a 45 degree angle to do that. The display does not have to be glued back down to the PC board as it is held against the viewing area when the PC board is snapped back into place.
Thanks to this thread and forum I followed the steps and repaired my own board. Here’s what I did with some photos. My model is SC302ZS/01 double oven
Sorry looks like this forum won’t let me add photos.
REMOVE FACEPLATE
Undo two screws on the underside of the faceplate. It will then tilt/lift up. Label the two white wire bundles that attach to the control panel faceplate "Control Panel Left" and "Control Panel Right" then disconnect. Also disconnect the black wires from it. Set control panel aside. You should now see this.
IMG]http://********************.us/a/img252/2271/img1287t.jpg[/IMG]
REMOVE DISPLAY
Undo the three screws that keep the display on and the it will tilt forward with the wires attached to the back.
REPLACE THREE CAPACITORS
http://********************.us/a/img694/1964/img1289j.jpg
Label the three wire harnesses then remove. I had to basically break the little ledge tab that was holding the wire connector in place. No big deal they just push back on fine afterwards.
Remove the circuit board from the plastic frame by gently lifting up on the two tabs on the edge holding the board in place.
Gently tilt up the glass display to access the capacitor that is covered. You will need a little force to lift it up since there is a foam pad on the back of the display. Just pry it up enough to get to the back of that third cap thats hidden.
I replaced three capacitors. An earlier post had one of the voltage values incorrect so double check yours.
I bought two 470uF 35 volt 105C caps and one 68uF 35 volt 105C from Mouser.com because my local store didn’t have them all.
I used some desolder wire to soak up the old solder and replaced the caps.
Turned the circuit breaker back on and it worked. Thanks for this forum and thread!!! Saved $400 over a new board (although I did treat myself to a new $85 Weller soldering Iron from Amazon)
If you want to remove the door to replace a light, heating element, or to clean, just flick up these tabs to lock the door hinges into open and then tilt the door up 45 degrees and pull out hinges. Both side tabs must be engaged keeping the hinges from moving.
Good luck all.
+1 on the "worked like a charm" counter!!
After too many years peering at an almost unreadable display, I finally bit the bullet and replaced the capacitors - powered back on, and my display is working as well as it always did, prior to having the problem. Took about 20 minutes from start to finish (would be much quicker if I were to do it again).
As an aside, my oven is quite old (circa 2000) and the construction of the display board prevented replacing one of the two larger capacitors (the underside part of the legs were covered by the board-mounted LED "screen") so I could only swap a couple of the components. But this was obviously sufficient to correct the issue.
Given the original purchase price of the double oven unit, I still can’t believe that Thermador did this! The cost difference between the two types of capacitors is probably only a few dimes. I can’t work out if it’s incompetence or indifference - either way, this is the last Thermador appliance that I’ll ever buy.
Thanks and much kudos to Goober - what a great fix!
Dave
Goober said:
Success !!First of all I am in automotive electronics…and have design experience with vaccuum flourescent displays.
Our new double oven display got dimmer and dimmer over 2-3 years…the replacement board was $250 - with no promise it wouldn’t do the same thing 2 years from now…
Dim display is a function of the drive voltages to it. A transformer creates these - and the DC voltage is stabalized by capacitors. The capacitors are only rated to 105 C - which means over time the heat will reduce the capacitors capacitance…lowering the drive voltage and diming the display.
Turn off the power - remove the keyboard panel and metal plate it attaches to. Remove the board attached to the metal plate (not the keyboard/board). Replace 3 capacitors (2 x 470 uf 35V, and one 68 uf 35v…highest temp you can get is 125 C.
Display works like a charm…for $10 in parts from radio shack… best is WHEN the display gets dim…its a straightforward fix… I was actually thinking of puting in a computer fan to keep the top of the oven cooler… but thats another day.
I have a Thermador wall oven model# SMW272Y with same diplay problem.
Called Thermador and they told me that the oven is old, and parts are no longer availabe. They said I need to the display and the circuit board to CGI (866-737-2244) for repair. I found your post and ordered the capacitors from E_B_A_Y for less than $8. The problem fixed (display works normally) after I replaced the capacitors. Thanks for the instruction.
— Begin quote from Guest;922158
I have a Thermador double oven model S302TB. The oven is working fine. When I select bake or broil and enter a temperature, you can’t see any lights display. What part is need for this issue? I’ve been told various things…control board, display board, touch panel???
Thank you for any advice!
Robin
— End quote
It’s been a while, so maybe you’re not monitoring this anymore, but the answer to your question is in earlier replies to this topic. Capacitors need to be replaced on the display board.
I recently performed the 3-capacitor replacement fix for our 1999 Thermador double oven. The display had gotten so dim that it was basically invisible. The fix brought back the display, but it remains quite dim. I did see a fourth cap on the other end of the board from the grouping of 3 discussed in this topic, which I did not yet replace. I may go ahead and do that one as well.