Curious what performance is normal...when I switch to off grid
My LED lights flicker and fan motor speeds fluctuate. Seems the inverter from either PV or Batts isn't making very clean, stable energy
I have one providing full off grid power to my house. It replaced two 6500s. I guess I'm still enjoying the honeymoon because the 18k's performance is such an incredible improvement over the 6500s! I don't notice any flickering but do notice my fireplace insert blower motor slows slightly when I drop either the 5kW dryer or the 4.8kW water heater on it - but that is understandable. No light flicker with the unit loaded to 11.2kW.
Likely because it's drawing some grid along with batts and solar, even though it doesn't show it, at least that's how mine is working. When it shows no grid use I can still see 3-6amps use from grid on each grid leg with amp meter. Kinda sucks. I go to off grid mode and that stops but then I get the fluctuating power
I have 18kPV off grid only and when I turn off a 5kW resistive heater the lights flicker once immediately when the heating element is turned off (fan still running). This is also with less than 1kW of other loads besides that one.