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Sunsynk Fault Codes

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F56 error during load shedding

Hi, I have a setup with an 8KW Sunsynk inverter and 3 Hubble AM-5 batteries in parallel. The BMS is communicating with the inverter using a Hubble Cloudlink. For over a year, we had no issues with the setup. However, in December, we reinstalled the batteries to include a busbar for better current distribution when charging. No settings were changed on the BMS with the max discharge setting at 90A. Since the change, we that that, during loadshedding, the system gives us a F56 DC low voltage error if we use 3-4 KW of power. This causes power to switch off for a few minutes. This didnt happen previously. Any idea what could be causing it?

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nikki@sunsynk.com
nikki@sunsynk.com
Feb 21, 2024

Thank you for your query , F56 is a DC Busbar low voltage errol: F56 - DC busbar voltage is too low. Generally, this error is a battery problem, toprogress further we would require detis to investigate further please send an email to support@sunsynk.com where a case reference will be given toyou and progressed thtough to technical for further investigations.

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