Currently wiring a custom Electric cooling fans for my Truck. I have the Relay's override and Operation lights figured out. My problem is I want to have two LED's that will indicate if the fan is bad. I have LED's indicating if the fan's have power but that only indicates if the relay's/thermostats are functioning. Ive messed around with some diodes but cant figure out how to make it work. Ive exhausted my knowledge of electrical at this point and ran into a dead end. Ive attached a one-line drawing i did in paint. I have basic electronics knowledge as in diodes resistors etc what they do and what the symbol looks like on a one line but much past that i'm at a loss. Any help would be GREATLY appreciated. Oh and as always if you have any tips or advice on the way I have my relay's or wiring let me know. Currently I have it set up to have low speed run the fans in series (6v-10v) and on high speed (12v-14.5v) with an override switch as a safety to manually bypass the entire system in case of relay or thermostat failure.
Oh BTW the fans are 15amp fans (40amp relays FYI)
Oh BTW the fans are 15amp fans (40amp relays FYI)
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