OPTI-UPS IS5000LR - Manual (Page 23)

22
7. TROUBLE SHOOTING
Problem Possible Cause Action to Take
INVERTER AND UPS no
reaction while AC is connected
1. Line cord plug is loose
2. Fuse on rear panel blown
(Inside the drawer of inlet)
3. Dead wall socket
1. Check the line cord plug
2. Replace fuse
3. Check wall socket with a table lamp.
Power output is normal,
INVERTER AND UPS emits
continuous beep, status LED
shows RED, or LCD shows
“overload”. INVERTER AND UPS is over
loaded Turn off INVERTER AND UPS and
unplug excessive loads from
INVERTER AND UPS.
No power on outlets, INVERTER
AND UPS emits continuous
beep, status LED show RED or
LCD shows “over load”. INVERTER AND UPS has shut
down due to severe overload. Unplug excessive loads from
INVERTER AND UPS, press button to
reset the buzzer, and turn on the
INVERTER AND UPS again.
INVERTER AND UPS does not
provide expected run time
1. Excessive loads connected
at INVERTER AND UPS’s
outlets.
2. Battery is weak and cannot
provide enough capacity.
Do not operate the INVERTER AND
UPS, and leave the INVERTER AND
UPS plugged in for 10 hours. Then,
test it again, if INVERTER AND UPS
still cannot provide expected run time,
battery should be replaced.
Button on front panel doesn’t
work
1. The CPU inside INVERTER
AND UPS is not running
correctly.
2. Button damaged.
1. Unplug the line cord & push the
button for 15 seconds to reset the
INVERTER AND UPS.
2. Unplug all loads and line cord from
the INVERTER AND UPS to let it shut
down automatically, and call for
service.
To push button for testing under
AC mode, INVERTER AND UPS
emits urgent beep and LCD
display shows “battery
replacement” at the same time. Battery is weak and should be
replaced Replace batteries.
INVERTER AND UPS cannot be
turned on.
1. Battery polarity wrong
2. INVERTER AND UPS fault 1. Check battery connection.
2. Call for service.