Switch for cooling fans
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Forum Discussion
Harvey51 wrote:Make sure there is a fuse on the positive wire. An existing circuit should already be fused and adequate to add the fan loads. Otherwise add a new fuse near the battery.
Electricity goes around in a circuit, starting at the battery, going through the load and back to the battery. So you want to run it through the switch or thermostat so it can interrupt the flow. Just one wire will go through the switch, not two. The positive wire should be switched. Positive to the switch, then from the wire on the other side of the switch to the fan positive, then from its other wire back to the battery either through a ground or negative wire in the fridge.
