light load surge finally nailed

[Maj]

smart tre can't work right if there is no gps readings , check the pink wire at the gps end from connector down, i think it has been cut previously , either that or there is a fault in the gps unit or wire ,
if your black and blue (or green) has a circuit (which it will or there would be no neutral light) it will confirm there is a pink wire fault, if there is no neut circuit check your procedure .