CyberPower Systems CPS90UPA - Manual (Page 5)

4
Troubleshooting
Problem Possible Cause Solution
Poor contact with lighter socket. Make sure that the inverter is
securely plugged into the power
supply connector or socket.
In an automobile :
The ignition is required to be on.
Vehicle’s cigarette lighter socket
fuse blown.
Automatic shutdown when DC
voltage falls to 10.5v or less.
Turn the vehicle ignition key to the
“Accessory” position.
Check and, if necessary, replace
the damaged fuse.
Unplug the inverter and charge
the vehicle battery.
The indicator light is
not illuminated.
In an airplane :
The pilot has turned off the power
to the airplane seat.
Ask a flight attendant for
assistance.
Additional trouble shooting information can be found at :
www.cyberpowersystems.com/FAQs.htm