Mastervolt Chargemaster 12/100-3

TROUBLE SHO
OTING
29
7 TROUBLE SHOOTING
If you cannot solve a problem with the aid of this chapter, contact your local Mastervolt Service Centre.
Make sure you have the following information present if you have to contact your local Mastervolt Service Center to
solve a problem:
Article and serial number (See section 1.4)
Software version (See section 3.5)
7.1 FAULT FINDING TABLE
Malfunction Possible cause What to do
No AC-input Check AC wiring, check remote control panel.
AC-input voltage too low (< 90VAC) 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 9
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 section 5.2).
7.2 FAULT INDICATION
If an error occurs, FAILURE is shown on the display. The origin of the error is displayed by means of an error code.
Error code Explanation What to do
INP FREQ AC Input frequency too high or too low Check AC frequency, check generator.
INP VOLT AC Input voltage too high or too low Check AC voltage, check generator.
HIGH VOLT DC voltage too high Check battery voltage.
LOW VOLT DC voltage too low Check battery voltage.
BATT LOW DC voltage too low Check battery voltage.
TMP SD Temperature shutdown Let the charger cool down. See also section 4.2.