OPTI-UPS PS10000D-RT, User Manual

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7.TROUBLE SHOOTING

GUIDE 

7.1 For LCD Model 

The following guideline may be helpful for basic problem solving. 

No. 

UPS STATUS 

POSSIBLE CAUSE 

ACTION 

1 

AC utility power is normal. 
UPS is running normally, 
but fault LED lits up. 
Buzzer beeps 
continuously.

1. Charger PCB is   

damaged. 

2. Fan is damaged. 

3. Unknown 

1. Replace the charger 

PCB. 

2. Replace the fan. 

3. Restart UPS 

3 

AC utility power is normal 
but UPS is overloaded. 
Warning LED lits up and 
buzzer beeps per second.

Overload 

100%< load< 125% 

Please reduce the 
critical load to <100%. 

4 

AC utility power is normal. 
Warning LED does not 
fade out and buzzer 
beeps per 0.5 second.

Overload 

125%< load<150% 

Please reduce the 
critical load to <100%.

5 

AC utility power is normal. 
Warning LED lits up and 
buzzer beeps 
continuously.

Overload 

150%< load 

Please reduce the 
critical load to <100%.

29

No. 

UPS STATUS 

POSSIBLE CAUSE 

ACTION 

6 

AC utility power 
fails .The load is 
supplied by battery 
power. Buzzer alarm 
sounds every 4 
seconds.

1.  AC utility power 

failure. 

2. AC 

input 

connection may 
be not correct. 

1. Reduce the less 
critical load in 
order to extend 
backup time.   

2. Please check 
the rated input or 
connected line.

7 

AC utility fails. UPS is in 
battery backup mode. 
Buzzer alarm beeps 
every second.

Battery power is 
approaching low 
level. 

UPS will shut 
down 
automatically. 
Please save data 
or turn off the 
loads soon.

8 

AC utility power fails. 
UPS has shut down 
automatically.

Battery runs out 

UPS will restart up 
when AC utility 
power is restored.