Lenovo ThinkServer TD200x User Manual
Page 178
v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See the "Parts Listing" section in the Hardware Maintenance Manual to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v
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 VCO Fault has
transitioned to non-recoverable.
(n = power supply number)
Error
A sensor has changed to
Nonrecoverable state.
1. Check the power-supply LED
on the EasyLED diagnostics
panel (see “EasyLED
diagnostics panel” on page
17).
2. Replace the failing power
supply.
(n = power supply number)
Redundancy Power Unit has been
reduced.
Error
Redundancy has been lost
and is insufficient to continue
operation.
1. Check the LEDs for both
power supplies.
2. Follow the actions in
“Power-supply LEDs” on page
33.
Redundancy Cooling Zone 1 has
been reduced.
Error
Redundancy has been lost
and is insufficient to continue
operation.
1. Make sure that the connector
on fan 1 and fan 4 (if
installed) is not damaged.
2. Make sure that the fan
connectors on the system
board are not damaged.
3. Make sure that the fan cage
is correctly installed.
4. Reseat the fan.
5. Replace the fan.
Redundancy Cooling Zone 2 has
been reduced.
Error
Redundancy has been lost
and is insufficient to continue
operation.
1. Make sure that the connector
on fan 2 and fan 5 (if
installed) is not damaged.
2. Make sure that the fan
connectors on the system
board are not damaged.
3. Make sure that the fan cage
is correctly installed.
4. Reseat the fan.
5. Replace the fan.
Redundancy Cooling Zone 3 has
been reduced.
Error
Redundancy has been lost
and is insufficient to continue
operation.
1. Make sure that the connector
on fan 3 and fan 6 (if
installed) is not damaged.
2. Make sure that the fan
connectors on the system
board are not damaged.
3. Make sure that the fan cage
is correctly installed.
4. Reseat the fan.
5. Replace the fan.
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ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Installation and User Guide