Error Messages; Beep Symptoms - Lenovo ThinkPad T540p Hardware Maintenance Manual

Table 2. Numeric error codes (continued)
Symptom or error
2200
Machine Type and Serial Number are invalid.
2201
Machine UUID is invalid

Error messages

Table 3. Error messages
Symptom or error
Fan error.
Thermal sensing error.
The battery installed is not supported by this system
and will not charge. Please replace the battery with the
correct Lenovo battery for this system. Press the ESC
key to continue.
This system does not support batteries that are not
genuine Lenovo made or authorized. The system will
continue to boot, but may not charge unauthorized
batteries. Press the ESC key to continue.
Attention: Lenovo has no responsibility for the
performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out
of their use.

Beep symptoms

Table 4. Beep symptoms
Symptom or error
Four cycles of four short beeps
One short beep, pause, three short beeps, pause, three
more short beeps, pause, and one short beep
Five short beeps
Three short beeps, pause, one short beep, pause, one
more short beep, pause, and three short beeps
One long and two short beeps
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Hardware Maintenance Manual
FRU or action, in sequence
Replace the system board.
Replace the system board.
FRU or action, in sequence
1. Replace the fan.
2. Apply thermal grease.
3. Replace the system board.
Replace the system board.
Replace the battery.
Replace the battery.
FRU or action, in sequence
Replace the system board.
1. Replace the memory module.
2. Replace the system board.
Replace the system board.
Remove the device from ExpressCard slot.
Replace the system board.