Brother MFC-L8610CDW

• Code: 050A
• Description: The hardware detected a temperature error through the center thermistor or the side thermistor of the fuser unit.
• Remedy: <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the center or side thermistor harness of the fuser unit.
  2 Connection failure of the fuser unit heater harness Reconnect the fuser unit heater harness.
  3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness.
  4 Connection failure of the lowvoltage power supply PCB harness Reconnect the low-voltage power supply PCB harness.
  5 Eject sensor PCB failure Replace the eject sensor PCB ASSY.
  6 Fuser unit failure Replace the fuser unit.
  7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY.
  8 Main PCB failure Replace the main PCB ASSY.

• Code: 050B
• Description: When the center thermistor of the fuser unit was lower than the idle temperature, the side thermistor detected a temperature higher than the specified temperature.
• Remedy: <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the center or side thermistor harness of the fuser unit.
  2 Connection failure of the fuser unit heater harness Reconnect the fuser unit heater harness.
  3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness.
  4 Connection failure of the lowvoltage power supply PCB harness Reconnect the low-voltage power supply PCB harness.
  5 Eject sensor PCB failure Replace the eject sensor PCB ASSY.
  6 Fuser unit failure Replace the fuser unit.
  7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY.
  8 Main PCB failure Replace the main PCB ASSY.

• Code: 050C
• Description: When the center thermistor of the fuser unit was higher than the idle temperature, the side thermistor detected a temperature lower than the specified temperature.
• Remedy: <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the center or side thermistor harness of the fuser unit.
  2 Connection failure of the fuser unit heater harness Reconnect the fuser unit heater harness.
  3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness.
  4 Connection failure of the lowvoltage power supply PCB harness Reconnect the low-voltage power supply PCB harness.
  5 Eject sensor PCB failure Replace the eject sensor PCB ASSY.
  6 Fuser unit failure Replace the fuser unit.
  7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY.
  8 Main PCB failure Replace the main PCB ASSY.

• Code: 0800
• Description: An error occurred in the internal temperature sensor.
• Remedy: 1 Connection failure of the internal temperature sensor harness Reconnect the internal temperature sensor harness.
  2 Main PCB failure Replace the main PCB ASSY.

• Code: 0900
• Description: Detected irregular power supply for more than 100 times.
• Remedy: <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. Refer to “1.3.35 Reset counters for consumable parts (Function code 88)” in Chapter 5 to reset the irregular power supply detection counter after the replacement.
  2 Main PCB failure Replace the main PCB ASSY.
  Note: The irregular power supply detection error (Error code 0900) of the low-voltage power supply PCB occurs when there is a large distortion in the power supply voltage supplied to the machine. In this case, if the same power supply is used, the same error might occur again even if the low-voltage power supply PCB ASSY is replaced. For this reason, be sure to ask the user to rearrange the installation environment.

• Code: 0A01
• Description: Detected a blower failure.
• Remedy: 1 Foreign object inside the blower Remove the foreign object.
  2 Connection failure of the blower harness Reconnect the blower harness.
  3 Connection failure of the highvoltage power supply PCB harness Reconnect the high-voltage power supply PCB harness.
  4 Blower failure Replace the blower.
  5 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY.
  6 Main PCB failure Replace the main PCB ASSY.