Lenovo ThinkServer TD200x Hardware Maintenance Manual page 51

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
Sensor PS n Therm Fault has
transitioned to critical from a less
severe state.(n = power supply
number)
Sensor PSn 12V OV Fault has
transitioned to non-recoverable.(n =
power supply number)
Sensor PSn 12V UV Fault has
transitioned to non-recoverable.
Sensor PSn 12V OC Fault has
transitioned to non-recoverable.(n =
power supply number)
Sensor PS n VCO Fault has
transitioned to non-recoverable.(n =
power supply number)
Redundancy Power Unit has been
reduced.
Error A sensor has changed to
Critical state from a less
severe state.
Error A sensor has changed to
Nonrecoverable state.
Error A sensor has changed to
Nonrecoverable state.
Error A sensor has changed to
Nonrecoverable state.
Error A sensor has changed to
Nonrecoverable state.
Error Redundancy has been lost
and is insufficient to continue
operation.
1. Make sure that there are
no obstructions, such as
bundled cables, to the airflow
from the power-supply fan.
2. Replace power supply n.
(n = power supply number)
1. Check the power-supply LED
on the EasyLED panel (see
EasyLED diagnostics).
2. Remove the power supplies.
3. Replace power supply n.
4. (Trained service technician
only) Replace the system
board.
(n = power supply number)
1. Check the power-supply LED
on the EasyLED panel (see
EasyLED diagnostics).
2. Remove the power supplies.
3. Replace power supply n.
4. (Trained service technician
only) Replace the system
board.
(n = power supply number)
1. Check the power-supply LED
on the EasyLED panel (see
EasyLED diagnostics).
2. Remove the power supplies.
3. Replace power supply n.
4. (Trained service technician
only) Replace the system
board.
(n = power supply number)
1. Check the power-supply LED
on the EasyLED panel (see
EasyLED diagnostics).
2. Replace the failing power
supply.
(n = power supply number)
1. Check the LEDs for both
power supplies.
2. Follow the actions in
Power-supply LEDs.
.
Chapter 5 Diagnostics
43