U2-Xxxx Type (Lsu) Error Code - Samsung SL-M4080FX Service Manual

4. Troubleshooting

4.7.2.8. U2-xxxx type (LSU) error code

► Error Code
U2–1111 / U2-1112 / U2–1113
► Error message
LSU Failure: #U2-111x.Turn off then on. Call for service if the problem persists
► Symptom
LSU Motor does not work normally.
► Troubleshooting method
1) Execute the LSU motor test in SVC mode. Check LSU motor operation sound.
2) If there is no sound, remove the right cover. Check if the LSU harness is connected on the main board properly.
3) If it is OK, remove the top cover. Check if the LSU harness is connected on LSU board properly.
4) Check if the LSU harness is defective.
5) Reconnect the LSU harness and then execute the LSU motor test again.
6) If the problem persists, replace the LSU.
7) If the problem persists after replacing LSU, replace the main board.
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