Question about Ovens
Oven works but display is very dim
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Posted on Jan 02, 2017
You need a new display/relay board package they have come up with to solve this problem. The parts generally run about $250, and if you have it repalced by a service company, the total will be a little less than $500. The display is really easy to change by itself, but you must change the realy board with it, and it has about 40 different wires going to it. If you draw a diagram as you take the wires off, and label them carefully, it isn't that hard to do the whole job..just take your time. This is a problem thermadore/dacor ovens have had for some time. If it isn't too old you may try calling thermadore and see if they are willing to at least buy you the parts, as this is a known problem. Good Luck!
Posted on Nov 24, 2006
SOURCE: Thermador SC301T oven
Thermador SC301T and SC302 stack ovens have a weakness in the radial capacitors on the circuit board behind the LED clock. They get cooked from heat. Here is the fix: Remove two screws from the control panel, located facing up at the bottom on the panel frame.. open the oven door to see them. The panel is then held in place by push in toggles at each end, pull towards you to remove. Carefully unplug the three wiring harness plug-ins, and check them to see if any wires are loose. Set the panel aside. Remove 3 screws holding in the LED assembly, and again unplug the wire harnesses, examining each for loose wires at the terminal. When unplugged, take the LED assembly to the bench, remove the plastic housing, and with a mini soldering iron and watchmaker's eyeglasses, or hobby magnifier,
identify, heat, and remove two 35v 450uf 105 degree radial capacitors, and one 35v 68uf 105 degree
capacitor. These are ordered from MCM Electronics (google it) and are p/ns 96K0326 and 96K0331.
Insert new parts, solder and clip excess leads. Carefully examine the printed circuit board around the area of the leads you just soldered, as some boards do not have the copper close enough to the hole to make contact. Scrape the green insulation from the conductor near the hole to expose copper and make sure your solder makes contact with the copper and the lead. Use your multi-tester when finished to check continuity from all leads you just soldered and their nearest neighboring contact on the circuit board. I found a loose wire on the harness to repair, and one contact on a capacitor did not have the copper close enough to make contact without extra effort. When all is completed, reassemble. Turn back on power at the circuit breaker. You may get an F7 error code. Off with the power again, wait 3 minutes. Restore power, go to oven and press the OFF position on the glass control panel... hold for 10 seconds, and the clock should now be steady at 12:00. Push clock position, reset clock for proper time. Test oven light on/off. Test bake/temp/convection buttons,
on/off. This is a good fix, and will save you about $469.00 in parts and $500.00 in labor. The new
105 degree centigrade high temperature radial capacitors replace old 85 degree, which fail, and your repair should last. Total parts and shipping costs.. about $10.00.
Posted on Mar 14, 2009
I replaced the C3 capacitor on the circuit board and works fine. This was mentioned in a prior post and took 5 minutes and was under $5.00 for the part.
Posted on Mar 21, 2009
Please see post by bonanzsapilot on 14 March 2009; he gives exact & easy to follow directions for making this repair for <$10. It's listed uner 'Thermador SC301IT oven - FixYa'. In a separate post I added the correct capacitor numbers from Newark.com. I made the fix in abt 30 min & it's good as new. Thermador no longer makes control panels for this oven & no wiring diagram is available to help. Shop price was estimated at $500.
Posted on Apr 13, 2009
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