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7. Trouble Shooting Table
Proceed as follows for quick detection of common faults.
DC loads must be disconnected from the batteries and the AC loads must be disconnected from the inverter before the inverter
and/or battery charger is tested.
Consult your Victron Energy dealer if the fault cannot be resolved.
Problem Cause Solution
The inverter fails to operate
when switched on The battery voltage is too high or too
low Ensure that the battery voltage is within the
correct value.
The inverter fails to operate Processor in no function-mode Disconnect mains voltage. Switch front switch
off, wait 4 seconds.
Switch front switch on.
The alarm LED flashes Pre-alarm alt. 1. The DC input voltage
is low Charge the battery or check the battery
connections.
The alarm LED flashes Pre-alarm alt. 2. The ambient
temperature is too high Place the inverter in a cool and well-ventilated
room, or reduce the load.
The alarm LED flashes Pre-alarm alt. 3. The load on the
inverter is higher than the nominal load Reduce the load.
The alarm LED flashes Pre-alarm alt. 4. Voltage ripple on the
DC input exceeds 1.25Vrms Check the battery cables and terminals.
Check the battery capacity; increase if
necessary.
The alarm LED flashes
intermittantly Pre-alarm alt. 5. Low battery voltage
and excessive load Charge the batteries, reduce the load or install
batteries with a higher capacity. Use shorter
and/or thicker battery cables.
The alarm LED is on The inverter did cut out following a pre-
alarm Check the table for the appropriate course of
action.
The charger is not
functioning The AC input voltage or frequency is
out of range Ensure that the input voltage is between
185Vac and 265Vac, and that the frequency
matches the setting.
The battery is not being
charged fully Incorrect charging current Set the charging current at between 0.1 and
0.2x battery capacity.
A defective battery connection Check the battery terminals.
The absorption voltage has been set to
an incorrect value Adjust the absorption voltage to the correct
value.
The float voltage has been set to an
incorrect value Adjust the float voltage to the correct value.
The internal DC fuse is defective Inverter is damaged.
The battery is overcharged The absorption voltage has been set to
an incorrect value Adjust the absorption voltage to the correct
value.
The float voltage has been set to an
incorrect value Adjust the float voltage to the correct value.
A defective battery Replace the battery.
The battery is too small Reduce the charging current or use a battery
with a higher capacity.
The battery is too hot Connect a temperature sensor.
Battery charge current drops
to 0 when the absorption
voltage is reached Alt. 1: Battery overtemperature (>
50°C) • Allow battery to cool down
• Place battery in a cool environment
• Check for shorted cells
MultiPlus 2kVA 230V
Page 16 Trouble Shooting Table