The stem/shaft that holds the oven knob seems to be broken--the knob turns but does not turn the shaft. Is this a repair an amateur can do and what part do I need?

try going to goole.com and put in appliance parts there will be a number of sites that will come up many in the USA that have many parts.

You didn't say whether you have a gas or electric oven, or oven & stove. I'll assume you have a stove, just to cover all bases.

First, you should shut down the oven: a gas stove will have a valve on the gas line behind the stove. The valve will either have a red handle or a flat stem that usually has a hole in it. Turn either valve 1/4 turn to shut off gas, use a wrench on the flat stem. An electric stove should be shut off by flipping off the double circuit breaker for it in your electric panel. Do not unplug an electric stove when it is on; this can damage the plug &/or electrocute you.

Most likely the inside of the knob has stripped out. Look at the knob for a hole that has a setscrew in it: a small allen wrench or screwdriver will loosen the setscrew, most knobs don't have them and will pull off. Be careful to use even pressure on two sides of the knob; if you can't pull it off, use two butter knives or flat screw drivers to pry it up enough to get a grip on it.

Look at the center stem on the back of the knob, it will likely be cracked or stripped. Some stems have a D-shaped metal insert that strips out inside the plastic stem. If you have one, pull off a burner knob and compare the stems in the back, if they are the same size, put the burner knob on the shaft for the oven control, and use that knob to turn the oven control off.

If the burner knob won't fit, use your fingers or a pair of pliers (gently) to turn off the oven control shaft. If the shaft stops normally, you can turn the stove back on using either the gas valve or the circuit breaker. If you have a gas stove that doesn't have electric ignition (a clicking noise when you turn on a burner) you may need to re-light the pilots for the burners. Lift the covers off the burners to re-light the pilots.

If you have succeeded in turning off the oven, you need a new knob -- you can get one at an appliance parts store or maybe a hardware store. If the oven control did not turn off normally, I would leave the oven/stove turned off: the control itself will need to be replaced by a qualified repair person.

First try a layer of silver paper around spindle.

If not satisfactory then try a "No nails" type of clue.

In order for the element to stay on, the oven switch must be broken. No details are provided, but if your oven is like most, you have an Oven Selector knob for ~bake, broil, clean and another knob for Temperature selection.

Look at your Oven Selector knob closely to make sure it is not slipping on the shaft. It may be as simple as the knob being broken, and even though you are turning it to the Off position, the switch may still be on. If the knob is indeed turning the switch shaft, then it is most likely the switch stuck in the own position. Thanks for using FixYa.

Here is a link to all the parts for this oven.

You will need to get a replacement knob for it as either the spring clip or plastic has broken.

Hello,
The model no. does not seem correct.but it seems as if the hole in the fan blade which is normally D shaped has worn round.The thread on the shaft is Left handed and you will need to undo by turning clockwise. If you can get a vice grips at the back of the blade to hold the shaft then try again,or you will need to get into the back casing and try jamming the shaft at the motor housing you may need some help.Then if that works you will need to undo the 3 bolts holding the Motor body to the rear casing.The new fan would normally come with new bolts,blade and nut.To tighten fan blade nut use a 10mm socket hold the fan blade and tighten anticlockwise.Hope this is helpful.

Good luck.

HI,and a merry Xmas.
Yes it is repairable, it is going to be one of two things.

1--the control knob is cracked or broken causing it to twist round without turning the control.
2--the spindle on the control is broken or loose inside the switch.
Pull the knob off, and see if yopu can turn the switch on and off with a pair of grips or pliers.
This way it will enable you tell if it is just the knob or the switch that is faulty.
Good luck.

Please leave feedback for my suggested solution.

set both start & stop timers to the same time.Turn on the selector and the temperature knobs to clean. Hold in the light button, on the right top side of oven, and hold for 15 seconds.
then turn off the selector knob. hold button again for 15 seconds and the lock should unlock,
then turn off the temperature knob.

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.