Victron energy MultiPlus Compact 12/2000/80-50 120V Manual page 27

Problem Cause
The charger is The AC input voltage or
not functioning frequency is out of range.
The thermal circuit breaker
has tripped.
The battery is not Incorrect charging current.
being charged
fully.
A defective battery
connection.
The absorption voltage has
been set to an incorrect
value.
The float voltage has been
set to an incorrect value.
The internal DC fuse is
defective.
The battery is The absorption voltage has
overcharged. been set to an incorrect
value.
The float voltage has been
set to an incorrect value.
A defective battery.
The battery is too small.
The battery is too hot.
Battery charge Alt. 1: Battery
current drops to 0 overtemperature
when the (> 50°C)
absorption
voltage is
Alt 2: Battery temperature
reached
sensor faulty
Solution
Ensure that the input voltage
is between 185 Vac and 265
Vac, and that the frequency
matches the setting.
Reset the 30 A thermal circuit
breaker.
Set the charging current at
between 0.1 and 0.2x battery
capacity.
Check the battery terminals.
Adjust the absorption voltage
to the correct value.
Adjust the float voltage to the
correct value.
Inverter is damaged.
Adjust the absorption voltage
to the correct value.
Adjust the float voltage to the
correct value.
Replace the battery.
Reduce the charging current
or use a battery with a higher
capacity.
Connect a temperature
sensor.
- Allow battery to cool down
- Place battery in a cool
environment
- Check for shorted cells
Unplug battery temperature
sensor from the Multi.
Reset the Multi by switching it
off, then wait for 4 seconds
and switch it on again
If the Multi now charges
normally, the battery
temperature sensor is faulty
and needs to be replaced