Bed levelling CR-10 Smart.
I changed a blocked nozzel with a new one. then i went to level the bed and it keeps crashing into the glass and scratching it. shortly after the i kept getting 203 messages appearing on the reader. I had to shut down the CR-10 Smart as there was a problem it could go on fire. That was solved it's self. Still got same problem with with bed levelling and crashing.