Mastervolt Mass Series User Manual

Mass 24/15-2, 24/25-2, 24/25-2 DNV, 24/25-2 (large cabinet) – User and Installation Manual
21
7 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)
Malfunction
Possible cause
What to do
No output voltage
and/or current
No AC-input.
Check AC wiring, check remote control panel.
AC-input voltage too low (< 180VAC).
Check input voltage, check generator.
AC input frequency out of range.
Check input voltage, check generator.
Output voltage too low,
charger supplies
maximum current
Load that is connected to the batteries is
larger than charger can supply.
Reduce load taken from the batteries.
Batteries not 100% charged.
Measure battery voltage. After some time this will
be higher.
Charge current too low
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.
Low AC input voltage. At lower AC-input
voltages the charge current is reduced.
See figure 12.
Check AC-input voltage.
Batteries not fully
charged
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.
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.
Batteries are too warm,
gassing
Defective battery (short circuit in cell).
Check battery and replace if necessary.
Battery temperature too high.
Use the battery temperature sensor.
Charge voltage too high.
Check settings (see chapter 7).

Mastervolt Mass Series Specifications

General

Output Voltage	12V / 24V / 48V
Cooling	Fan or Natural convection (depending on model)
Protection	Over temperature, Overload, Short circuit
Dimensions	Varies depending on model
Weight	Varies depending on model
Battery Types	Gel, AGM, Lithium-ion
Temperature Sensor	Yes
Parallel Operation	Yes
Input Voltage	90-265V AC
Operating Temperature Range	-20°C to +60°C