21
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Problem
Cause
Solution
The charger is not
functioning
The AC input voltage or frequency
is out of range.
Ensure that the input voltage is
between 185 Vac and 265 Vac,
and that the frequency matches
the setting.
The thermal circuit breaker has
tripped.
Reset the 30
A thermal circuit breaker.
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
Alt 2: Battery temperature sensor
faulty
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
