KYOCERA copystar CS-1820 ERROR C6000

Your problem is heat related, or the lack of heating at least. one of 2 things went wrong here... either the fuser unit overheated causing the thermal fuse (aka the thermostat) to blow, or the heating lamp in the fuser unit is blown. Basically the 6000 code is displayed when your machine fails to reach the correct temparature at a specific time. Unfortunately you will have to call a service person to check which to of the mentioned components are at fault and to replace that component for you. After replacing, the component the code will still be displayed as a safety measure, so the service representative will need to clear the code via the machine's service mode