Maintenance
The controller is maintenance-free. We strong suggest that all components of the PV
system must be checked at least annually.
●
Ensure adequate ventilation of the cooling element.
●
Check the cable strain relief.
●
Check that all cable connections are secure.
●
Tighten screws if necessary.
●
Terminal corrosion.
FAQ
No LED display
●
Battery is not connected.
Remedy: unclamp connection of battery and reconnect to battery.
●
Battery voltage too low.
Remedy: Pre-charge the battery.
●
The external fuse in the battery connection cable has blown.
Remedy: Replace the external fuse.
●
Battery is defective.
Remedy: Unclamp all connections, connect a proper battery with correct polarity
and reconnect the solar panel and loads.
Load can't be operated or only for a short time
●
Load is not connected.
Remedy: Reconnect loads.
●
Battery voltage too low to provide energy.
Remedy: Wait till battery is charged.
●
Load output is switched off due to excessive load current.
Remedy: Reduce load current, if necessary switch off or disconnect loads.
EN-7
Summary of Contents for SM-P1818B
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