TROUBLE SHOOTING
EN / Mass Charger 12/60-2; 12/80-2; 24/50-2; 24/75; 24/100; 3-24/100; 48/25; 48/50 / July 2010 21
8 TROUBLE SHOOTING
In case of a failure, the Mass Charger display shows an
error code to help you find its source. See section 3.3 for
error codes. If you cannot solve a problem with the aid of
the fault finding table, contact your local Mastervolt
Service Centre. See www.mastervolt.com. Make sure you
have the article and serial number present if you have to
contact your local Mastervolt Service Center to solve a
problem (See section 1.4).
8.1 FAULT FINDING TABLE
Malfunction Possible cause What to do
No AC-input. Check AC wiring, check remote control panel.
AC-input voltage too low (< 180VAC) . Check input voltage, check generator.
No output voltage
and/or current
AC input frequency out of range. Check input voltage, check generator.
Load that is connected to the batteries is
larger than charger can supply.
Reduce load taken from the batteries. Output voltage too low,
charger supplies
maximum current
Batteries not 100% charged. Measure battery voltage. After some time this will
be higher.
Batteries almost fully charged. Nothing, this is normal when the battery is almost
fully charged.
High ambient temperature. Nothing; if ambient temperature is more than 40°C
the charge current is automatically reduced.
Charge current too low
Low AC input voltage. At lower AC-input
voltages the charge current is reduced.
See figure 14.
Check AC-input voltage.
Charge current too low. See “Charge current too low”.
Current to load is too high. Reduce load taken from the batteries.
Charge time too short. Use a battery charger with higher capacity.
Battery temperature too low. Use the battery temperature sensor.
Batteries not fully
charged
Defective or old battery. Check battery and replace if necessary.
Batteries are
discharged too fast
Battery capacity reduced due to wastage or
sulphation, stagnation.
Charge and recharge a few times, this might help.
Check battery and replace if necessary.
Defective battery (short circuit in cell). Check battery and replace if necessary.
Battery temperature too high. Use the battery temperature sensor.
Batteries are too warm,
gassing
Charge voltage too high. Check settings (see chapter 6).
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