Possible error conditions:

Relay on, LED on                        | Electrical fault during calibration, check all cables
Relay on, LED 1 short blink then pause  | Channel A current transformer fault, replace transformer
Relay on, LED 2 short blinks then pause | Channel B current transformer fault, replace transformer
Relay on, LED 3 short blinks then pause | Channel C current transformer fault, replace transformer
Relay off, LED 1 blink then pause       | WiFi fault. Check antenna; SSID "She" must be in range
Relay off, LED on                       | Relay fault. Fix the relay
Relay off, LED off                      | Very unlikely flash memory fault. Reflash or change the chip