ARTronic ART 600VA Manuale d'uso - Pagina 11

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7. Trouble Shooting

Symptom

No LED display

on the front

panel.

Alarm buzzer

beeps

continuously

when AC

supply is

normal.

When power

failure, back-up

time is shorten.

Mains normal

but LED is

flashing.

Possible Cause

1. Missing battery.

2. Battery defect.

3. Power switch is not

pressed at least 5

seconds.

Overload of the UPS.

1. Overload of the UPS.

2. Battery voltage is too

low.

3. Battery defect due to

high temperature

operation environment,

or improper operation to

battery.

1. Fuse is blown.

2. Power cord is loose.

1. Charge battery up to 8 hours.

2. Replace with the same type of

battery.

3. Press and Hold power switch

for at least 5 seconds.

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.

1. Replace the same type of

fuse.

2. Reconnect the power cord

properly.

Remedy