September 10, 20214 yr Hi, My Mecer 3kva inverter suddenly stopped working. The screen flashes with all the icons displayed and all three LEDs are lit. No power is supplied to the board. The inverter is connected to three 200w solar panels and two 100ah enertec batteries. Has anyone experienced this before? Is this a common fault with this inverter? I had it installed in 2019. What would be the cost of repair for this inverter, if possible? I have attached a video of the fault. Please help! 20210830_121140_SML.mp4
September 10, 20214 yr The two highlighted errors from the manual both point towards your battery being an issue, are you able to test it? You can also try a cold reset- remove grid, panel and then battery power, wait for the screen to go off and then restart the inverter in the opposite order. If it does turn out to be an internal component failure I cannot assist with pricing in your area(SA), sorry. Your installer should be able to help more.
September 10, 20214 yr 2 hours ago, Shadders said: both point towards your battery being an issue Yes. Either your battery or the wiring, including any fuses, isolators, etc. 3 hours ago, Sagren said: Is this a common fault with this inverter? No, although lead acid batteries failing after about 2 years is sadly rather common.
September 10, 20214 yr Author 3 hours ago, Shadders said: The two highlighted errors from the manual both point towards your battery being an issue, are you able to test it? You can also try a cold reset- remove grid, panel and then battery power, wait for the screen to go off and then restart the inverter in the opposite order. If it does turn out to be an internal component failure I cannot assist with pricing in your area(SA), sorry. Your installer should be able to help more. Yes, I have tried the cold restart. It is currently off. Has been off for a couple of days.
September 10, 20214 yr Author 52 minutes ago, Coulomb said: Yes. Either your battery or the wiring, including any fuses, isolators, etc. No, although lead acid batteries failing after about 2 years is sadly rather common. Thank you. I will have them tested.
September 25, 20232 yr Have a 1200VA inverter. There was minimal noise previously from what I assume is the fan. I had to replace the battery recently and since then the noise is very intrusive which makes TV viewing unpleasant.
September 27, 20232 yr I note that Enertec make both Lithium and lead acid 100 Ah batteries. If it's the lead acid, note this warning from the first Google hit: I wonder if they had to put up this warning after finding many customers complaining about short life in their solar energy systems. I guess they're designed for occasional deep discharges, not regular shallow ones. Though of course, many users are tempted to use them for regular deep discharges, and they don't last long with that usage.
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