That is really strange.
Of course there are limits, but just a few centimeters above the rated limit shouldn't cause any extreme harm because of the "error margin".
Before something so dramatic, I'd first check the pump and drain hose. they can be clogged with lint or mineral deposits.
Other thing I'd try before having to take the washer apart is fill it on low, dissolve some citric acid (agitate a few minutes) then drain for 10 seconds to fill the drain hose with the solution and stop the washer, let it sit overnight.
It may help dissolving mineral deposits, if that is the problem.
Other product that may help is CLR. Same thing, low water level, a whole bottle, soak overnight
Don't let it run the whole cycle with CLR because CLR is extremely sudsy and will cause a suds lock.
The third alternative is Affresh... Ignore the directions, toss 3 or 4 tablets at once.
If possible, drain in a bucket, so you can see if something comes out.
A few days ago I ran a cycle with Affresh in a "Samtag" Neptune. I thought the washer was super clean.... When it drained it it spit a huge ball of long human hair + black pet hair + lint + mineral "crystals". It almost clogged my laundry sink drain. It was gross! And I used only ONE tablet... I can imagine what else was left behind.