Tomy autoclave error message 8. What does that indicate?

The Autoclave door is not opening at the end of the cycle.

Midmark M11 "Old Style" Error Code E009

Sterilizer Autoclave Solutions https://statimusa.com > midmark-m11-old-style-error-...
Error E009: Door doesn't fully open at the end of a cycle. This error indicates that there is pressure buildup during the dry cycle. Probable causes of Midmark ...

Error Code E009 :

AllClaveParts https://www.allclaveparts.com > error-code-e009
You will need to know whether or not the Door is Opening Automatically at the End of the Cycle when you get the Error Code E009 before proceeding.

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  E009 - Door Does Not Open At End Of Cycle :

  https://www.allclaveparts.com > error-code-e009 > e0...
  Midmark M9 & M11 Error Code E009 Door Does Not Open At End Of Cycle · Remove any debris or buildup from Latch Lever & Pulse Solenoid Mechanism · Remove burrs; ...

Page 134 and 135 onwards.

http://www.frankshospitalworkshop.com/equipment/documents/autoclaves/service_manuals/Euronda%20E9%20Inspection,%20Recorder,%20Med%20Sterilizer%20-%20Service%20manual.pdf

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https://manualslibrary.org/info/manuals-single-takeout-auto/?source=gs-ca&kw=vacuum+%2Bmanual&c=ManualsLibrary_Category_CA_Blended&aid=1635021357&network=s&keyword=vacuum+%2Bmanual&placement=&gclid=EAIaIQobChMImJycwrj04AIVcxh9Ch2iuwQNEAAYASAAEgKpyPD_BwE The above is a link for a free manual where you can find what the error code 8 is directed towards in the operation of the autoclave.

Providing a make and model would probably help you get more answers.
If you are referring to a SES2000 or LS3, ELECt means power has been removed during a cycle and to clear the error, turn the power off, hold one of the 4 buttons on the front as you power the autoclave back on.
You will have to re-process the load as it has not performed a full cycle.

Error 3 is a Door lock error and has nothing to do with the water sensor. Tighten the door down snuggly, but don't over-tighten. If it still doesn't work it may need a door rebuild or switch replacement. Call for service if it doesn't restart.

...no informative error? bacteriological filter? time for maintenance?

See if there are no steam leak.

er2 what is this

What is the problem?

The E13 error code on an Enigma 8 autoclave typically indicates a problem with the vacuum system. This error code is indicating that the vacuum is not reaching the proper level during the sterilization cycle.
Here are a few things you can check to fix the E13 error code:

1. Check the vacuum pump: Make sure that the vacuum pump is functioning properly and that it is not blocked or clogged.
2. Check the air filter: Make sure that the air filter is clean and not clogged. A clogged air filter can prevent the vacuum pump from functioning properly.
3. Check the vacuum hose: Make sure that the vacuum hose is not damaged or disconnected.
4. Check the door gasket: Make sure that the door gasket is not damaged or leaking. A damaged or leaking door gasket can prevent the vacuum from reaching the proper level.
5. Check the control board: Make sure that the control board is not damaged or malfunctioning.
6. Check the water level: Make sure that the water level is at the correct level in the autoclave chamber.