Table 31 Controller Enclosure Troubleshooting Flowchart (Sheet 5 of 5)
E
Is the Fault-A
or Fault-B BBU
LED on?
No
BBU
Full Charge-A
AND
Full Charge-B
LEDs are on?
Yes
BBU status
is good.
Go to
A
The BBU has failed.
Yes
Replace the BBU
Yes
Has the BBU
No
been charging for
7 hours?
1. Faulty Battery charging circuit or
harness
a. Replace both Power Supplies
b. Replace the Battery Harness
2. DOA BBU
3. Midplane
Go to
A
Yes
Has the new
BBU fully charged
in 7 hours?
Wait 7 hours
No
for BBU to fully
charge
Controller Enclosure Troubleshooting
No
245
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