Smart Car Radiator Fan Relay

Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

Smart car radiator fan relay. Work in progress. Evilution the smart car encyclopaedia full of information for fixing and modifying your smart car. Basically this circuit uses the very low impedance of the starter solenoid to provide a ground to the relay coil. I was hoping you d notice this bill considering your recent additional rad fan topic.

If the car is hot the thermostat will switch on sending that 12 volts to one side of the relay coil. How to wire a relay for a radiator fan by don bowman. When the correct parameters are met a temperature switch or. Dual electric engine cooling fan wiring harness 185 165 thermostat 40a.

In normal operation the 12 volts comes from the ignition switch to the thermostat. The cooling fan relay takes the low voltage signal and internally switches the relay on to allow battery voltage to be supplied to the radiator cooling fan. If it is a on off sensor you can use it for your second rad fan or use the output to the existing fan to drive a relay and your add on. If the fan is not turning in the right direction air will be blown away from the radiator and will not help to.

By using a lower voltage signal to control the relay there is less stress on the rest of the wiring and charging system. Electric cooling radiator fan accessory w mounting feet car modification fan kit. What do the relays power. Truck rv car modification fan parts eelectric cooling radiator fan accessories.

A team performance electric cooling radiator fan relay kit with thermostat installation hardware wiring set 180 to 200 degrees temp sensor temperature switch 40 amp relay 4 2 out of 5 stars 70 14 99 14. The cooling fan relay is the relay that controls the engine s cooling fans. Most cooling fans use electric motors that have a moderate to high current draw and as a result are commonly controlled using relays. When installing an auxiliary fan or simply wiring the factory fan so that the driver can manually turn the fan on and off make sure the fan is turning in the right direction.