I have a fuller description in the xerox copier section of what I did or didn't do to increase chances of being seen. Basically it gets a head tilt error about 11% into warm up & will reboot at the same spot indefinitely. I cleared the error log and now it stops at displaying the error. The diagnostics in the book lead down to the process drive. So I ordered that and the maint. camshaft in case of cracks, put them in, and still the same problem. Is there something they are not telling you in the book? I haven't worked on wax machines in years & would like to know if there are other nuances to look for on these newer models. Thanks to all the detectives who enjoy a mystery.