Leon Slabbert

Hi guys, I got one of these inverter trolleys today: https://wcctv.co.za/shop/ups/long-run-ups/sol-i-bb-m3l-mecer-3kva-3kw-51-2v-105ah-5376wh-lithium-battery-4000w-mppt-mobile-trolley-inverter-pure-sine-wave-input-voltage-220-230vac-output-voltage-230v-ac-2x-5v-dc-usb-2-0-port/ It was the very last unit and it was the display unit, so I think someone played with the settings. I have charged it for 2 hours now. The issue I’m having is that it refuses to switch on when on battery power. I’ve had a few trolleys so pretty clued up with them, well turning on and off at least! I put the circuit breaker up, then press the AC on button at back, nothing, not even a single LED. If I only switch on the DC button, I am able to use the USB ports to charge my phone. If I switch on the AC button and then the DC button at the same time, I get a quick few LEDs and then nothing. BUT, when I plug it in on charge, and switch both AC and DC on, it powers on, immediately shows an error 3 code with a red fault light, after about a minute it disappears and charges. After 5 minutes of charging I can unplug the charger cable and it stays on with battery power, to test that it’s working I ran the TV, a fan and a quick microwave and it worked perfectly. Then switched it off and used my 1kw trolley for the remainder of loadshedding. Tried switching on the 3kw trolley again, NOTHING. Pretty sure it must be a setting that is waiting for utility to power it up instead of battery, that’s what my mind is saying. I can post all my settings here if that would help? Would appreciate the help please guys. Thanks!