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Food processor from Vorwerk manufactured and first distributed in 2014/2015 (Europe/US).

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Thermomix TM 5 Error C 39

My Thermomix TM 5 is displaying an error c39 and only has the option to shutdown. This occurs when i attempt to start the chopping cycle. Once selecting the speed the arms lock the bowl and the panel displays error c39 and informs you that the unit will shutdown. The user only has the option to click OK on the touch panel and the unit proceeds to shutdown with the arms locked on to the bowl. Can anyone shed some light on this and how i could look into repairing this. Thanks in advance.

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an error C39 refers a Power Board faulty. “No Voltage at Bulk Capacitor”.

Parts of PCB affected :

  • Startup resistor missing.
  • Startup relay short.
  • Power relay does not close.

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Thank you Jarod. How would I isolate which of the listed parts is contributing to the C39 error. Cheers.


Hi Sankong,

To isolate the affected PCB's part, you need to disassembled your TM5 and control the Power Board :/

But, you must to know than all parts and the PCB are varnished.

I realize than you try to repair your TM5 despite elapsed time.

I've a lot of TM5's parts (to offer). And I've my sister's TM5 to repair. I try (these 2 next weeks) to fix it. So in same time I can found and prepare a PCB for you. ;)

Where you live ? I'm in France.


Bonjour Jarod,

J'ai un Thermomix TM5 en panne erreur C39. J'ai changé le moteur que je suspectait hs, mais ce n'est pas la cause de la panne.

Avez-vous encore des cartes électroniques ? et pourriez-vous m'aider s'il vous plait ?




Where did you found this c39 error description ?

Since I did not see any resistor damages on my board (it's on my deck just in front of me ;-); may I simply change the 4 relays (a few euros ) and be quiet for a long time, or is/are there some other components I shoud replace preventively ?

(I'm in Nantes/France; Yes I know, it's 10Km/5 miles from vorwerk care center ;-( )


which parts must be replace? I have the same problem.

perhaps you can contact me per Email:


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try to reset

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Thank you Med_tech for the suggestion. I have tried the following since my post. Reset TM5 settings and wi-fi through menu. No change. Turned off left off for a few days then tried turning it on again with no change.


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sankong sarà eternamente grato.
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