I've had my 24v Phoenix 1200w (120v) inverter running solidly for a little less than a year now. Firmware is 1.21.
Switched it on this afternoon and there was no AC output. The red and the green LEDs flash in an alternating fashion every half a second or so. Toolkit shows this as "Calibration or Parameter Error".
I've tried checking and resaving all the parameters (all were fine) and then refreshing the firmware with A27A_01.21 but no luck.
Does anyone have insight into why this suddenly happened or what can be done to rectify this ?
Many thanks in advance,