Trouble Shooting - Mastervolt MASS 24/15-2 Betriebsanleitung

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TROUBLE SHOOTING

Malfunction
No output voltage and/or current
Output voltage too low but
charger supplies max. current
Charge current too low
Batteries not fully charged
Battery very fast empty
Batteries are warm/gassing
If you cannot solve the problem with this fault finding table, contact your Mastervolt Service Centre.
For a detailed distributor list, please contact our main office in Amsterdam, tel. +31-20-3422100.
EN / MASS battery charger / August 1999
Possible cause
No AC mains or fuse blowes
Mains or generator output too low
Battery load consumes more than the
charger can supply, the battery voltage
cannot increase more
Batteries not 100% charged
Batteries almost fully charged
High ambient temperature
Mains too low
Charge current too low
Current to load too high
Charge time too short
Battery temperature too low
Defective battery (short circuit in cell)
Defective battery charger
Battery capacity reduced because:
• wastage
• sulphating/stagnation
Defective batteries (short circuit in cell)
Battery temperature too high
Charge voltage too high
TROUBLE SHOOTING
What to do
Check fuse, replace if necessary.
Check input voltage, must be between
190 and 260V (nominal 230V).
Reduce the battery load taken from
batteries.
Measure the battery voltage after a
while, this will be higher.
Check if the charger is in the absorp-
tion mode. In this mode, the charge
current will slowly decrease.
If the ambient temperature is more than
40°C, the maximum charge current
automatically will be reduced.
When the mains is lower than 190V,
the charger will regulate the current
down.
See "charge current too low";
Decrease the battery load;
Increase type of charger;
Use temperature sensor;
Replace the battery;
Check the charger.
Replace the batteries;
Charge/discharge for several times, this
might help, otherwise replace batteries.
Replace batteries;
Use temperature sensor;
Check jumper 'battery isolator'
on front panel.
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