Ambient temperature
is too high
Cut off the output and input, and
wait for at least 30 minutes, then
restart it.
Cooling fan is dead
UPS is short circuit
Load is short circuit
Remove load and restart the UPS,
if it’s still not ok,contact the dealer/
manufacturer
Malfunction Cause Solution
2. Can’t turn on
UPS when there
is mains power.
1. UPS goes into
battery mode, but
there is mains
power
3. Can’t turn on
UPS at battery
mode.
4. Can’t charge
the battery.
5. Short backup
time.
8. Input circuit
breaker tripps off
9. Others
Others
6. “Overload”
symbol appears,
or “Overload” LED
is ON, and UPS is
beeping.
7. “Error”
symbol appears,
or “Overload” LED
is ON (not due to
overload, and
UPS is beeping.
Press and hold the power switch till
the UPS give a beeping sound.
Wait till the input voltage or input
requency is normal
Press and hold the power switch till
the UPS give a beeping sound.
Others.
Others.
UPS is overloaded
UPS is overheating
Ventilation holes are
blocked
Clean the ventilation holes
Charger is faulty.
Short charging time.
Charge battery at least 10 hours.
Contact the dealer / manufacturer.
Battery is empty.
Battery is faulty.
Battery is faulty.
Fuse for battery
reverse burnt.
Press time is too
short.
The input voltage or
input frequency is
out of range.
Press time is too
short.
Contact the dealer / manufacturer.
Contact the dealer / manufacturer.
Charge the battery.
Replace the battery.
Replace the battery.
Contact the dealer / manufacturer.
Remove the non-critical load
Remove the non-critical load
Replace it
Contact the dealer/manufacturer
Contact the dealer/manufacturer
9. TROUBLE SHOOTING
1
2
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