RustyGate

@Modina Did not manage to have the faulty inverter repaired yet. I contacted Rubicon today, but still waiting for their Technical/Support Dept to my call. I ended up replacing the faulty inverter with the latest version of the Synapse 3.0+ in January already due to operational requirements and not managing to have the other unit repaired. I would still like to see if I can have the faulty unit repaired as backup

@BruceL and @Modina thanks for the comments and feedback.

Apologies to all if my query has been answered previously - I am a newbie to PowerForum I installed a Synapse 3.0+, 24V inverter with 2x 12V 100Ah lead acid batteries in mid 2019, and use it as a "UPS" for core ICT equipment (e.g. network router, switches, AP's, Cellular booster) on our guest farm. All worked well up late last year with excessive load shedding. First to fail was lead acid batteries which I replaced with 2x 12V 100Ah LifePO batteries. Shortly after that the inverter started tripping with F08 error, which I understand to be due to over voltage scenario. External power supply for the inverter is mains (ESKOM) only. The trips occured after load shedding when ESKOM comes back on. We already have surge protection installed on te DB feeding to the inverter and have recently also installed a "voltage comparison relay" with appropriate contactor on the ESKOM main incomer DB. The Inverter now only works when on battery power and immediately defaults to F08 trip status when we switch on mains power feed. We currently have another 3kW inverter installed (on loan from our electrician). My question is if it is worth trying to repair the existing Synapse 3.0+ or to just replace it? If repairing is an option is there anyone who can recommend a repair facility in the greater Cape Town area? If repairing is NOT an option, is it worth installing a similar (Synapse/Axpert/Kodak) inverter again, or are there better alternatives? Thank you in advance for any comments and assistance