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David avatar image
David asked

RS Smart Solar 48/6000 Error 53

A customer (off grid electrician) has purchased a RS 48/6000 and home owner is reporting Error #53 (low output voltage). Batteries are Sonnenschein 12v 185A blocks, two strings of 4. Installer may have left low battery cut out at the default setting of 43v. Could this very low batt voltage be contributing to this error. We have recommended the installer checks low batt cut off recommended by Sonnenschein data sheet (possibly up around 48 to 49v minimum), but until that happens, your thoughts are appreciated.

MPPT SmartSolar
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1 Answer
Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

Hi @David,

The Inverter reports this when the DC voltage is too low to maintain operation.

If the battery voltage is high enough this should not happen. So please check the battery voltage direct at terminals of the unit when it is occurring. There may be a bad connection somewhere leading to a voltage drop under load.

Is there any other information about the circumstances?

Is it possible to run the Inverter when the battery is known to be fully charged or does it always stop?

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