Error Messages - Lenovo ThinkPad L440 Hardware Maintenance Manual

Table 2. Numeric error codes (continued)
Symptom or error (beeps, if any)
0253
EFI Variable Block Data was destroyed.
0271
Real Time Clock Error - Check Date and Time settings.
1802
Unauthorized network card is plugged in - Power off and
remove the network card.
1820
More than one external fingerprint readers are attached.
Power off and remove all but the reader that you set up
within your main operating system.
2100
Detection error on HDD0 (Main HDD)
2102
Detection error on HDD2 (M.2 SATA)
2110
Read error on HDD0 (Main HDD)
2112
Read error on HDD2 (M.2 SATA)
2200
Machine Type and Serial Number are invalid.
2201
Machine UUID is invalid.

Error messages

Table 3. Error messages
Symptom or error (beeps, if any)
Fan error.
Thermal sensing error
The connected AC adapter has a lower wattage than
the recommended model which was shipped with the
system. To boot with the AC adapter, please connect the
AC adapter which was shipped with the system.
Press Esc to continue.
The connected AC adapter has a lower wattage than the
recommended model which was shipped with the system.
System is going to shutdown...
FRU or action, in sequence
The system EFI Variable Block Data might have been
corrupted.
Run ThinkPad Setup and reset the date and time.
1. Remove the network card.
2. System board.
Power off and remove all but the reader that you set
up within your main operating system.
1. Reseat the hard disk drive.
2. Replace the main hard disk drive.
3. Replace the system board.
1. Reseat the M.2 solid state drive.
2. Replace the M.2 solid state drive.
3. Replace the system board.
1. Reseat the hard disk drive.
2. Replace the main hard disk drive.
3. Replace the system board.
1. Reseat the M.2 solid state drive.
2. Replace the M.2 solid state drive.
3. Replace the system board.
System board.
System board.
FRU or action, in sequence
1. Thermal-fan assembly.
2. Thermal grease.
3. System board.
The thermal sensor has problem. Shut down the
computer immediately and have the computer
serviced.
Use the ac adapter shipped with the computer.
Use the ac adapter shipped with the computer.
Chapter 4
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Related service information
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