PowerWalker VI 450 SE Guide De Démarrage Rapide page 9

8. Maintenance
I. General
The UPS is virtually maintenance free: take care of proper environmental conditions and keep air inlets-
outlets free of dust.
II. Fuses
If the AC input fuse is defect, be sure it is replaced by a compatible fuse from the same make and type.
Never short circuit batteries. When working with batteries, remove watches, rings and other metal objects,
and only use insulated tools.
III. Batteries
Read all safety rules before replacing the battery.
When replacing the batteries, use batteries with exactly same specifications.
9. Trouble Shooting
Symptom
No LED display on the 1. Battery weak.
front panel.
2. Battery defect.
3. Power switch is not pressed.
Alarm buzzer beeps Overload of the UPS.
continuously when AC
supply is normal.
When power failure, 1. Overload of the UPS.
back-up time is shorten.
2. Battery voltage is too low.
3. Battery defect due to high temperature
Mains normal but LED is Power cord is loose.
flashing.
If any abnormal situations occur that are not listed above, please call service people immediately.
Possible Cause
operation environment, or improper
operation to battery.
Remedy
1. Charge battery up to 8 hours.
2. Replace with the same type of
battery.
3. Press the power switch again.
Verify that the load matches the UPS
capability specified in the specs.
1. Remove some non-critical load.
2. Charge battery 8 hours or more.
3. Replace with the same type of battery.
Reconnect the power cord properly.
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