The thermostat in my walloven is about 10 Degrees off; how do I adjust?

Possibly none of these videos are exactly like your oven but it should give you enough information to get the job done.
Note that some of the videos are not for ovens.

Replace thermostat on kenmore elite oven YouTube

KENMORE ELITE Walloven Parts Model 79048033800

Has this just happened or have you suddenly just tested the oven temperature with a RELIABLE thermometer? Some cheaper thermometers can give a false reading. Check with a accurate thermometer first and place it at intervals in different parts of the oven ( it does vary) and take the average

A thermostat only cuts the heating off when the temperature it is set to is reached while the heating is on. If the heating is set to off then the thermostat will do nothing.
Generally you want to think about when you want your heating to come one and off by using the timer and then the thermostat is just used to ensure that you don't waste energy by exceeding the maximum comfortable temperature.

Hope this helps a little.

I am having the same problem with my Dayton greenhouse thermostat, this question was posted in the wrong section...but if you find a solution I'd like to know. I am having problems with the heating thermostat as well as the cooling one.

I lost power and had the same problem. 177 degrees and ERR whenever I tried to change it. Reading the manual, I noticed that it was showing the degree symbol instead of F. When you hold down the broil/maxi/econo button for five seconds, it changes to F and then it worked perfectly. Makes no sense, but worked without any repairs needed.

There is a calibration method to adjust the oven thermostat plus/minus 35 degrees if it is a digital display. The method varies depending on the model range. This calibration method is used to adjust the thermostat if it is not keeping proper tempature. For example if you are setting the oven to 350 and the actual temp it is keeping is 325 then you could use the calibration method to adjust it plus 25 degrees to correct the temp. Just so you know electric ovens will keep a pretty even temp but gas ovens will vary by 40 or more degrees to keep an "average" temp. For example the burner will come on when the oven is 330 degrees and turn off at 370. 330+370 then divide by 2=350. So a oven thermometer may not show you the temp you set it at in a gas oven but does not mean the oven temp is off.

remove the dial for temp setting and re-seat at proper temp. Dial may be mis-aligned

next to last page in your manual


Adjusting Oven Temperature
Oven temperature has been factory calibrated and tested. If
oven consistently over or under cooks food, adjust thermostat.
Oven temperature can be increased or decreased 35°F. To
avoid over adjusting oven, move temperature 5°F each time.
1. Push BAKE pad.
2. Press + pad until an oven temperature greater than 500°F
shows in display.
3. Immediately push and hold, approximately 5 seconds,
BAKE button until “00” appears.
4. Press + or - arrow pad to adjust oven temperature.
• To increase oven temperature (for a hotter oven), Press
pad until a positive number appears in display.
• To decrease oven temperature (for a cooler oven),
Press pad until a negative number appears in display.
5. Press OVEN CANCEL pad to save adjustment.
• Setting is saved if power fails or is disconnected.

heres a link to the entire manual if needed
http://shop.amana.com/assets/pdfs/literature/32103601.PDF

cheked on installation guide available with product online

It's on page 32 of the manual for Thermador's built in convection ovens. 1. turn off the oven 2.touch and hold the start pad and then touch the bake pad 3. 0 (zero) appears in the temp digits. release all pads 4. touch bake and 0 changes in increments. max adjustment is 35 degrees F. 5. to complete change touch start for lower oven on double ovens do this: touch the roast pad instead of the bake pad continue with steps 3-5.