Troubleshooting - Victron energy BlueSolar MPPT 75/10 Manual De Instrucciones

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4. Troubleshooting

Problem
Charger does
not function
Blown fuse
The battery is
not fully charged
The battery is
being
overcharged
Load output
does not
become active
Possible cause
Reversed PV connection
No fuse inserted
Reversed battery
connection
A bad battery connection
Cable losses too high
Large ambient temperature
difference between charger
and battery (T
ambient_chrg
T
)
ambient_batt
Only for a 24V system:
wrong system voltage
chosen (12V instead of 24V)
by the charge controller
A battery cell is defect
Large ambient temperature
difference between charger
and battery (T
ambient_chrg
T
)
ambient_batt
Maximum current limit
exceeded
DC load in combination with
capacitive load (e.g.
inverter) applied
Short-circuit
Solution
Connect PV correctly
Insert 20A fuse
1.
Connect battery correctly
2.
Replace fuse
Check battery connection
Use cables with larger cross
section
Make sure that ambient
conditions are equal for
>
charger and battery
Set the controller manually to
the required system voltage
(see section 1.8)
Replace battery
Make sure that ambient
conditions are equal for
<
charger and battery
Make sure that the output
current does not exceed 15A
Disconnect DC load during
start-up of the capacitive load
Disconnect AC load from the
inverter, or connect inverter as
explained in section 3.6
Check for short-circuit in the
load connection

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