HiltonR

Hi I installed Growatt 3kW 48v two years back. Gridtied, trips eld when ESKOM power is linked. I measure 95V AC between earth and neutral, as the Growatt earth bonding relay closes a second or so after ESKOM power comes in. As the unit is out of guarantee I stripped it after watching Youtube videos on the subject. I found two screws linking circuitry on the main pc board to the chassis. There are 6 mounting screws, 4 in corners, clear of circuits. I am sorely tempted to remove the earthed screws, they are little metric M3 machine screws, labelled SC2 M3 and SC3 M3 respectively. So far I have had zero luck in my attempting to contact Growatt. The firm I purchased the inverter from died in Covid period.