Not sure if the model I selected was the right one but my picker has the model # right on it

Model=EASiOPC3OTT

Thing works fine 80% of the time but every now and again I go to start it up and it does the self test and then 3 odd beeps and it says "error code 6K" and then it moves very very slow and we can't get any work done in it for like 2-3 hours then it randomly starts working again. No idea whats wrong and I don't know where to look up this error code any help would be great thanks

It is also charged when it happens