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6. MAINTENANCE
The MultiPlus-II does not require specific maintenance. It will suffice to check all connections once a year. Avoid moisture and
oil/soot/vapours, and keep the device clean.
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
No output voltage on
MultiPlus-II in inverter mode
AC-out-2.
Multi will not switch over to
Circuit breaker or fuse in the
generator or mains
AC-in input is open as a result of
operation.
overload.
Inverter operation not
The battery voltage is
initiated when switched on.
excessively high or too low. No
voltage on DC connection.
'Low battery' LED flashes.
The battery voltage is low.
'Low battery' LED lights.
The converter switches off
because the battery voltage is
too low.
'Overload' LED flashes.
The converter load is higher than
the nominal load.
'Overload' LED lights.
The converter is switched off due
to excessively high load.
'Temperature' LED flashes
The environmental temperature
or lights.
is high, or the load is too high.
'Low battery' and 'overload'
Low battery voltage and
LEDs flash intermittently.
excessively high load.
'Low battery' and 'overload'
Ripple voltage on the DC
LEDs flash simultaneously.
connection exceeds 1,5 Vrms.
'Low battery' and 'overload'
The inverter is switched off due
LEDs light.
to an excessively high ripple
voltage on the input.
Solution
Remove overload or short
circuit on AC-out-1 or AC-out-
2, and reset fuse/breaker.
Ensure that the battery voltage
is within the correct range.
Charge the battery or check
the battery connections.
Charge the battery or check
the battery connections.
Reduce the load.
Reduce the load.
Install the converter in cool
and well-ventilated
environment, or reduce the
load.
Charge the batteries,
disconnect or reduce the load,
or install higher capacity
batteries. Fit shorter and/or
thicker battery cables.
Check the battery cables and
battery connections. Check
whether battery capacity is
sufficiently high, and increase
this if necessary.
Install batteries with a larger
capacity. Fit shorter and/or
thicker battery cables, and
reset the inverter (switch off,
and then on again).
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