Sun Microsystems Enterprise 250 Owner's Manual page 76

Note – When removing a hot-swappable power supply, do not disengage and
reengage the supply in rapid succession. Always remove a supply completely before
reinserting the same supply or a replacement supply. Rapid seating and unseating of
power supplies may result in false error conditions.
For information about removing and installing power supplies, see "How to Remove
a Power Supply" on page 128 and "How to Install a Power Supply" on page 130.
Two LED indicators on the rear of the power supply display power status and fault
conditions. For additional details, see "Power Supply LEDs" on page 245.
Note – Enterprise 250 power supplies will shut down automatically in response to
certain over-temperature and power fault conditions (see "Environmental
Monitoring and Control" on page 42). To recover from an automatic shutdown, you
must disconnect the AC power cord, wait roughly 10 seconds, and then reconnect
the power cord.
58 Sun Enterprise 250 Server Owner's Guide • June 1998