MultiPlus-II 24/3000/70-50 2x120V Manual

7. Error Indications
With the procedures below, most errors can be quickly identified. If an error cannot be resolved, please refer to your Victron
Energy supplier.
We recommend to use the toolkit app to link LED alarm codes to a description of the problem/alarm, see https://
www.victronenergy.com/support-and-downloads/software#victron-toolkit-app
7.1. General error indications
Problem Cause Solution
No output voltage on AC-
out-2.
MultiPlus-II in inverter mode
Multi will not switch over to
generator or mains
operation.
Circuit breaker or fuse in the AC-in
input is open as a result of
overload.
Remove overload or short circuit on AC-out-1 or
AC-out2, and reset fuse/breaker.
Inverter operation not
initiated when switched on
The battery voltage is excessively
high or too low. No voltage on DC
connection.
Ensure that the battery voltage is within the correct
range.
‘Low battery’ LED flashes The battery voltage is low. Charge the battery or check the battery
connections.
Low battery’ LED lights. The converter switches off because
the battery voltage is too low.
Charge the battery or check the battery
connections.
‘Overload’ LED flashes. The converter load is higher than
the nominal load.
Reduce the load.
‘Overload’ LED lights The converter is switched off due to
excessively high load.
Reduce the load.
‘Temperature’ LED flashes
or lights.
The environmental temperature is
high, or the load is too high.
Install the converter in cool and well-ventilated
environment, or reduce the load.
‘Low battery’ and
‘overload’ LEDs flash
intermittently.
Low battery voltage and excessively
high load.
Charge the batteries, disconnect or reduce the load,
or install higher capacity batteries. Fit shorter and/or
thicker battery cables.
‘Low battery’ and
‘overload’ LEDs flash
simultaneously.
Ripple voltage on the DC
connection exceeds 1,5Vrms.
Check the battery cables and battery connections.
Check whether battery capacity is sufficiently high,
and increase this if necessary.
‘Low battery’ and
‘overload’ LEDs light.
The inverter is switched off due to
an excessively high ripple voltage
on the input.
Install batteries with a larger capacity. Fit shorter
and/or thicker battery cables, and reset the inverter
(switch off, and then on again).
One alarm LED lights and
the second flashes.
The inverter is switched off due to
alarm activation by the lighted LED.
The flashing LED indicates that the
inverter was about to switch off due
to the related alarm.
Check this table for appropriate measures in regard
to this alarm state.
The charger does not
operate.
The AC input voltage or frequency
is not within the range set.
Ensure that the AC input is between 95VAC and
135VAC, and that the frequency is within the range
set (default setting 45-65 Hz).
Circuit breaker or fuse in the AC-in
input is open as a result of
overload.
Remove overload or short circuit on AC-out-1 or
AC-out-2, and reset fuse/breaker.
The battery fuse has blown. Replace the battery fuse.
The distortion or the AC input
voltage is too large (generally
generator supply).
Turn the settings WeakAC and dynamic current
limiter on.
MultiPlus-II 12V 3kVA 2x120V
Page 19 Error Indications