Aplus 240VAC User Manual - Page 14

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SHOR

Inverter short.

OVTP

Over temperature fault.

OVLD

Overload.

SITE

Site fail.

EPO

EPO active.

Please have the following information at hand before calling for service.

1) Model number, serial number

2) Date on which the problem occurred

3) LCD display information, buzzer alarm status

4) Mains power condition, load type and capacity, environment temperature,

ventilation condition

5) The information battery capacity, quantity.

6) Other information for complete description of the problem

Output short circuit.

Remove all the loads.

Turn off the UPS.

Check whether the

output of UPS and

loads is short circuit.

Make sure the short

circuit is removed, and

the UPS has no internal

faults before turning on

again.

Over temperature.

Check the ventilation of

the UPS, check the

ambient temperature

and ventilation.

Overload.

Check the loads and

remove some

non-critical loads.

Check whether some

loads are failed.

Phase and neutral

Rotate mains power

conductor at input of

socket by 180° or

UPS system are

connect UPS system.

reversed.

EPO function is

Plug into the EPO

enabled.

switch.

8. Maintenance

8.1 Operation

The UPS system contains no user-serviceable parts.

8.2 Storage

If the batteries are stored in temperate climatic zones, it is recommended to

recharge those batteries every three months for 1~2 hours. It is highly suggested

to shorten the recharging intervals in every two months at locations where

subjects to high temperatures.