acconet Mi500 User Manual Download Page 7

Use the below table to solve common errors/problem:  

When utility power is 
available and within the 
selected operating 
range, yet the unit in 
inverter mode.

AC input cord might not be 
properly connected.

Input breaker switch might be 
activated.

Secure and properly connect the 

AC input cord.

Reset the input breaker switch.

When the power fails 
the backup time is 
shorter than 
previously.

The unit might be overloaded.

Battery voltage might be too 
low.

Battery capacity might not be 
full even after 8+ hours of 
charging.

Remove non-critical loads.

Let the unit charge for a 
sufficient time period.

Check the date and condition 
of the batteries, replace if 
needed.

LCD display is dark 
whilst utility power is 
available and within 
selected range.

The inverter might be 

switched off.
The battery might not be 

properly connected.

There might be defects/

faults in the battery.

Battery voltage might be too 
low.

Press the power switch to power 

on the unit.

Check the battery connection 

and secure all connections.

Replace the batteries.

Let the unit charge for a 
sufficient time period.

The unit is constantly 
in fault mode and 
restarts frequently.

The unit might be overloaded.

The output might be short 
circuited.

Verify that the load does not 
exceed the max load capacity of 
the inverter.

Check the connected loads and 
disconnect/resolve the 
connected load causing the 
short circuit.

Reviews: