I am installing a concept 650 Mk II but the H4/3 20 amp fuse keeps blowing when I connect it to 12V +
This wire is the input for the indicator light flash and I have double checked the polarity is correct. I even disconnected the 2 x white output wires just in case i was wrong but the fuse keeps blowing when connected to 12V +
The H4/3 wire has continuity with ground at the alarm side so that explains why its blowing the fuse but why is it grounded, as it is only the input to control + or - switching circuits.