HP T750 - Output Load Level LED is red or flashing red; Battery Charge LED is red; Battery Warning LED is amber; Site Wiring Fault LED is red

Troubleshooting 22
Output Load Level LED is red or flashing red
Action:
1. Remove one or more load devices to reduce the power requirements.
2. Initiate a self-test ("Initiating a self-test" on page 16).
3. If the condition persists, verify that the load devices are not defective.
Battery Charge LED is red
Action:
If the Power LED is flashing green:
a. Save your work, and power down the UPS ("Powering down the UPS" on page 16).
b. After the blackout or brownout is over, power up the UPS ("Powering up the UPS" on page 15).
c. Allow the UPS batteries to charge for 24 hours.
If the Power LED is green:
a. Continue to let the batteries charge until the Battery Charge LED is green.
b. Initiate a self-test ("Initiating a self-test" on page 16).
Battery Warning LED is amber
Action:
1. Allow the UPS batteries to charge for 24 hours.
2. Initiate a self-test ("Initiating a self-test" on page 16).
Site Wiring Fault LED is red
Action: Contact a qualified electrician to be sure that:
• The utility power receptacle is grounded.
• There is a ground wire in the UPS power cord.
• The line and neutral wires are not reversed in the wall outlet.