IBM SAN512B-6, Installation, Service And User Manual

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Table 16. 2870 W AC Power supply LED descriptions (continued)
LED purpose Color Status
Recommended
action
Power status
Flashing on five
times, and then off 5
seconds. Power supply
assembly fan is
faulty. Replace power
supply.
Flashing on six times,
and then off 5
seconds. Over temperature
protection. Check for blocked air
flow or high ambient
temperature at power
supply. If status
persists, replace
power supply.
Flashing on seven
times, and then off 5
seconds. Power supply is
disabled. Disconnect power
cable from power
supply, remove and
reinsert power
supply, and then
reconnect power
cable to restart. If
status persists,
replace power supply
assembly. If status
persists, replace
power supply.
Note: If airflow direction for a power supply assembly does not match the chassis
airflow direction as stored on WWN cards, the power supply will have a "fault"
status. However, LED operation for the power supply will not indicate a fault.
Interpreting fan assembly LEDs
Refer to the following illustration and table to interpret the LED patterns on fan
assemblies. The LED patterns may temporarily change during POST and other
diagnostic tests. The SAN512B-6 has three fan assemblies.
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SAN512B-6 Installation, Service, and User Guide