Trouble Shooting; Fault Finding Table; Fault Indication - Mastervolt Chargemaster 12/70-3 User Manual

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
7.1

FAULT FINDING TABLE

Malfunction
No output voltage
and/or current
Output voltage too low,
charger supplies
maximum current
Charge current too low
Batteries not fully
charged
Batteries are
discharged too fast
Batteries are too warm,
gassing
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
INP FREQ AC Input frequency too high or too low
INP VOLT AC Input voltage too high or too low
HIGH VOLT DC voltage too high
LOW VOLT DC voltage too low
BATT LOW DC voltage too low
TMP SD Temperature shutdown
(See section 3.5)
Possible cause
No AC-input
AC-input voltage too low (< 90VAC)
AC input frequency out of range
Load that is connected to the batteries is
larger than charger can supply.
Batteries not 100% charged
Batteries almost fully charged
High ambient temperature
Low AC input voltage. At lower AC-input
voltages the charge current is reduced.
See figure 9
Charge current too low
Current to load is too high
Charge time too short
Battery temperature too low
Defective or old battery
Battery capacity reduced due to wastage or
sulphation, stagnation
Defective battery (short circuit in cell)
Battery temperature too high
Charge voltage too high
What to do
Check AC wiring, check remote control panel.
Check input voltage, check generator.
Check input voltage, check generator.
Reduce load taken from the batteries.
Measure battery voltage. After some time this will
be higher.
Nothing, this is normal when the battery is almost
fully charged.
Nothing; if ambient temperature is more than 40°C
the charge current is automatically reduced.
Check AC-input voltage.
See "Charge current too low".
Reduce load taken from the batteries.
Use a battery charger with higher capacity.
Use the battery temperature sensor.
Check battery and replace if necessary.
Charge and recharge a few times, this might help.
Check battery and replace if necessary.
Check battery and replace if necessary.
Use the battery temperature sensor.
Check settings (see section 5.2).
What to do
Check AC frequency, check generator.
Check AC voltage, check generator.
Check battery voltage.
Check battery voltage.
Check battery voltage.
Let the charger cool down. See also section 4.2.
TROUBLE SHOOTING
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