I was servicing the hot end and heard a small pop.  No spark or smell.  Once I finished with the service, I turned on the printer and the temps displayed were far off.  The hot end said -14 C and the bed said +233 C.  I checked connections and they were fine.  I replaced the hot end assembly minus the titan drive and still no help.  After turning it on, I waited a few minutes to see if the bed was actually trying to heat up to 233 C but I didn’t feel and increase in temp.  If I try to go into the menus, I get an error that the bed temp is maxed (Or something like that).  I may have shorted something out but I am not sure where to start checking or if there are any tests I can run.  Any help would be appreciated.

Steve