I have a 3 phase Multi RS Solar A443 system, running stable on firmware 1.26. When i upgrade to firmware 1.27 one of the units throws Error #59 ACIN1 relay test fault while the other two operate without issues. When i downgrade to 1.26 the “faulty” unit operates normal again. Did something change in the ACIN1 relay tests in firmware 1.27? Is this a hardware malfunction or a firmware bug?
Hi @rhernaus
Engineers are looking into it now. Appears to just be a false alarm associated with this update.
But will confirm more
A quick fix has been released in an update v1.28
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Wow amazing. I have installed v1.28 and can confirm the unit now operates without issues.
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Hi Guy,
Thanks for the update.
I’m curious in version 1.28 what the “Single Phase” mode is for in System/System Configuration on a Multi RS Solar?
It appeared in that slot where I always dreamt of seeing the word “Parallel”.
Is this a prelude to something?
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I had exactly the same problem with firmware 1.27. Since installing it, I always had the relay error. After updating to version 1.28, the error disappeared.
Thank you Guy