I just hooked up my second solar set up but my sunny boy is showing only volts and no watts or amps. Reading 400 volts dc, no amps or watts. 242 volts ac, no amps or watts. Getting 102 fault code. Which is for grid power being outside of limits. 10% below or above allowed which is 208 to 240. Been trying for 4 days to get someone on the phone from SMA. Any thoughts.