primetime
sawmill slave
Ok, to start off, many years ago I found a wiring diagram for Bosch type relays that went something like this, 30=12 volt battery power, 85=ground, 86=12 volt from a switch, 87=the load ie a fan. This is how I have my fans wired.
Lately however, I have noticed that that isn`t how other people are doing it. It seems as though most people are grounding the relay to turn them on, for instance, 85 is wired to a sending unit which appears to go to ground, which completes the circuit and turns stuff on.
I`m just wondering if I`m doing something wrong, and this is why I`ve killed two fan controllers, and why you can really tell when the fans turn on.
Lately however, I have noticed that that isn`t how other people are doing it. It seems as though most people are grounding the relay to turn them on, for instance, 85 is wired to a sending unit which appears to go to ground, which completes the circuit and turns stuff on.
I`m just wondering if I`m doing something wrong, and this is why I`ve killed two fan controllers, and why you can really tell when the fans turn on.