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www.uniteck.fr
43
INTEGRATED PROTECTIONS & TROUBLESHOOTING, CAUSES, SOLUTIONS
For a safe use, Unimppt has several protections that preserve the solar charge controller, the battery and the
consuming devices in output:
-
Protection against panel polarity reversal and panel short-circuits,
- Protection against reverse current: prevents reverse current towards the solar panel during night.
- Protection against battery polarity reversal
WARNING : If panels are connected whereas there is a battery polarity reversal,
controller can be damaged. Not covered by the warranty.
- Thermal protection.
Error message
Causes
Solution
The solar charge controller needs the
battery voltage to be higher than 8V in
order to turn on when being connected
to the battery
Check the battery’s voltage,
recharge it if necessary.
Battery polarity reversal
Battery connection problem (cables,
terminals...)
Check the connections.
No light switches on
Defective battery
Replace your battery, following the
order of disconnection and
connection (refer to installation
and connection cabling).
Green fast flashing
Battery over voltage
Check if battery voltage is too high
and disconnect the PV.
orange or red during
day
Battery discharged
With a standard charge, the light
turns green as soon as the battery
is charged.
Solar panel default
Check your solar panel
Solar indicator always off
Cable in reverse polarity
Reconnect your solar panel