Samsung SCX8123ND

Error Code:

Code: A3-3111, A3-3112, A3-3113, A3-3114
Display: Sensor Failure: #. Turn off then on. Call for service if the problem persists.
Description: The NC sensor in the fuser unit is defective. / The sensor signal is abnormal due to adefective harness.
Remedy: 1) Enter the SVC mode. Execute the sensor test to check the sensor operation. (Diagnostics > Engine Diagnostics > Engine Test Routines >) - 109-0000 : Fuser Temperature A - 109-0010 : Fuser Temperature B 2) Remove and disassemble the fuser unit. 3) Measure the resistance value of the Thermistor (1404-001453). If the measured value is out of 307KOm - 430KOm at 25C, replace the thermistor. 4) If the error persists, replace the Fuser unit (JC91-01049A(220V) / JC91-01050A (110V)). 5) If the error persists after replacing fuser unit, replace the Main board(JC92-02452A).

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