Thermomix TM31 - The knives do not rotate - the motor does not rotate

Hello, I have a problem with the Thermomix TM31: the knives just don't spin, and therefore the motor doesn't spin. I took the casing off to "manually" turn the engine, but I can't do it. Any suggestions? Below photos of the engine:

Hello
Buddy, did you deal with the fault? My engine is probably also damaged, but when it is turned off, it can be turned easily.

Unfortunately: I had to replace the engine, it was seized because it was flooded. Is your TM turning on at all?

Yes, I get error 34. Sometimes it was ok and sometimes it squealed and crashed an error. From what I found out, it's a damaged engine. Tell me what was the cost of replacing the engine? Did you buy separately or did you bring TM to the site?

I paid 700 PLN for the repair, but apart from the engine, they pressed a new knife with a handle, weight and the unfortunate engine. The engine itself costs PLN 250.

Gentlemen, I have the same problem.

Wife flooded the Thermomix. I cleaned it and it worked normally for a few days, but then it stopped. After turning on, you can hear that he is trying to move the engine (jerks) but fails. When turned off by hand, the engine will not start either. I thought maybe it holds a brake but after reading this thread I can see that it may be a seized engine.

Does it mean that the bearings are seized because water has got in?
Can only the bearings be replaced?

Please help.

You will not disassemble the engine. You need to replace the engine.

I was able to fix it Thermomix works as before.

What I did?

As I had to replace the engine with a new one anyway, I took a risk and took out the old engine. There was no need to unscrew the thread. The motor is inserted into the housing without screwing, on rubbers that absorb its vibrations. I wanted to spray the bearings with some spray grease (WD40 type). I couldn't find any lubricant so I unscrewed the 4 screws on the motor and it came loose a little. I twisted the spindle (what should rotate) of the motor with my hand and something let go and it started to turn slightly again.
I did not take the whole engine apart, only after unscrewing these screws the casing became slightly loose.

I twisted these 4 bolts and put the motor inside the housing. I connected it and it works again as before.

There were traces of flooding (dried-up remnants) on the lower part of the engine (there is probably something that functions as a fan). I cleaned it up a bit.

In the end, I didn't lubricate anything anymore. I also have no idea what could let go of the fact that the engine is running lightly again.

I conclude that the bearings would have to be fine and something else was holding.

Maybe this will help someone with a similar problem in the future.

I managed to save PLN 360 on replacing the engine (260 engine + 100 labor).

__Krzysiek__ wrote:

You won't take the engine apart. You need to replace the motor.

Thermomix 31-1 motor bearing replacement
After flooding the engine, the lower bearing is usually damaged (FAG 608 C3, fi 22x8x6). We replace using a miniature puller. The whole operation is not difficult, but it requires diligence and basic technical culture. Metal bottoms do not have sufficient centering, so the rotor in the stator core must be centered with a feeler gauge (0.2 -0.25 mm) so that it does not rub. When replacing the lower bearing, it is also worth replacing the second upper one. If the socket in the metal bottom is decalibrated, you can use Loctite glue or other similar glue.
PS before starting work, we wash the parts with a strong enzymatic liquid used in the kitchen and dry them.
Good luck
Mark