Caution - You can replace an AC input filter while the server is powered on. However, to minimize any potential risk of damage to equipment or personnel, consider turning off AC power to the server instead.
Caution - If you cannot power down the server, replace no more than one input filter at a time while the server is running.
Caution - Do not disconnect the server end of an AC power cord while the server is running. Disconnect the IEC 60309 connector from the facility's circuit breaker first.
Use the table to find which combination of AC input filter and AC power cord connects to the affected power supplies.
The AC power cord is also part of the circuit with the AC input filter and two power supplies, so the AC power cord might be responsible for the problem.
Caution - If more than one AC input filter appears faulty, do not remove more than one at a time while the server is running. The server might shut down if you remove more than one AC input filter or AC power cord.
If the wrong power supplies have shut down, you are working on the wrong AC input filter.
Follow the procedure at Remove an AC Power Cord.
Caution - If the server is running, you must follow the sequence of steps in Remove an AC Power Cord. Disconnecting the power cord in an incorrect manner poses a shock hazard when AC current is present in the power cord.