4. Troubleshooting► Error CodeU1–2115► Error messageFuser Unit Failure: #U1-2115. Turn off then on.► SymptomThe pressure control unit(Cam unit)of the fuser is abnormal.► Troubleshooting method1) Turn the machine off. Re-install the fuser unit, then turn the machine on.(Refer to 3.2.2. Fuser Unit)2) If the problem persists, check the following :(Refer to 3.3.23. Fuser Unit)a) When the side-cover closes, check if the operation sound of the pressure control unit occurs.b) Check if the parts of the pressure control unit are abnormal.- Check if the shape of the CAM-REAR(JC66-03299A)) is broken.- Check if there are abnormal parts of the pressure control unit.c) Check if the fuser-motor is abnormal via SVC mode.(Diagnostics > Engine Diagnostics > Engine Test Routines > 109–0140)3) If the problem persists, replace the Fuser unit(110V : JC91–01064A, 220V : JC91–01063A)4) If the problem persists, replace the pressure control unit or cam-motor or Main board(JC92-02452A).Copyright© 1995-2016 SAMSUNG. All rights reserved. 4-186