Mikey Schultz Posted June 23, 2020 Share Posted June 23, 2020 (edited) Morning all. I got a warning code 10 on my Mecer 5 KVA inverter. It says output voltage unstable. Switched off and reset the system now it is gone but why did it display this warning? Help!! Edited June 23, 2020 by Mikey Schultz Quote Link to comment Share on other sites More sharing options...
Coulomb Posted June 23, 2020 Share Posted June 23, 2020 4 hours ago, Mikey Schultz said: I got a warning code 10 on my Mecer 5 KVA inverter. It says output voltage unstable. My manual says it's "output power derating". A quick read of the firmware indicates that this happens in line mode if the AC input voltage falls below 170 VAC. What 5 kVA model Mecer do you have? It might vary depending on the model; the above comes from the Axpert MKS PF0.8 firmware (just because I know it better than the others). What does your inverter say the input voltage is when this happens? What does a trusted multimeter say? (Naturally, measure with caution.) Quote Link to comment Share on other sites More sharing options...
Mikey Schultz Posted June 23, 2020 Author Share Posted June 23, 2020 Hi. Thanks for your response. It has cleared and not returned but I was not present when this occurred. If it does it again I will certainly do the measurements thank you. I will check what model it is and let you know. I do know it is not the King inverter. Can I rack your brain on another installation I am busy with or do I start another chat? Regards Quote Link to comment Share on other sites More sharing options...
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