Sorry, i should have been more specific, i did not drain the hot water out of tank, but let it run till it got cold in the Bathtub, since then i turned the setting to the lowest and it stii is getting burning hot!
When i find out which Thermostat i should replace, i will pull it and get another one, on the high-temp one on top there are no adj. to be made. Those can only be made at the bottem, low temp one!
Thank's for any help!