Both light bulbs won't work

Are you using the integrated power supply or the external unit?

Thank you to Trevor B for providing this response to LabWrench via LinkedIn

I would contact your local Zeiss organization and they will be able to help.

Thank you to Simon K for providing this response to LabWrench via LinkedIn

Please write to our new central support email microscopy@zeiss.com with all necessary information and we'll get in contact with you immediately.

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Is very difficult that both bulbs are faulty.

May be the stemi have problems in the keypad. +/- buttons do not work. Press the central button. I believe M. With this you can change the illumination.

Good luck.

Thank you to Juan A for providing this response to LabWrench via Linked

First, replace the two bulbs with two known good bulbs.

If the above does not work, then replace the internal  PC board controller and the external power supply.

000000-1054-897    electronic control board    $80.30
000000-0522-133    power supply 12V/2,5A    $47.40
and
000000-0523-824    adapter cable        $23.40

Thank you to Edward M (National Sales Manager E& R Microscopy at Carl Zeiss, Inc.)for providing this response to LabWrench via LinkedIn