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Guest Message by DevFuse
 

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Wheres my fan switch relay?


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2 replies to this topic

#1 TurboSPFI

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Posted 27 June 2005 - 06:12 PM

im doing some troubleshooting on my electrical fan and cant find the relay..

anyone got the answer im looking for?

thanks

#2 MilesFox

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Posted 27 June 2005 - 06:54 PM

there is no relay for the fan, it grounds thru the thermo switch on the radiator. you can test the circuit by jumping the connector on the thermoswitch(i.e shorting the connection) to see if the fan comes on.

the way the system is designed is when the thermo switch reaches a certain temp it closes on the connecotor compling ground to the circuit. the circuit on the + side is live in the acc and run position

you can make a toggle switch to a relay and use the relay to make the ground contact. if you do this, and the thermoswithc works properly and is hooked up along with the relay, you can turn the fan on when you want, and if you forget to turn it on, the thermoswitch will take care of it

#3 nkx

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Posted 28 June 2005 - 02:46 AM

you can make a toggle switch to a relay and use the relay to make the ground contact. if you do this, and the thermoswithc works properly and is hooked up along with the relay, you can turn the fan on when you want, and if you forget to turn it on, the thermoswitch will take care of it


i wish you had posted this earlier! i was just working on hardwiring my fan to a switch this weekend. all i need to do is to install a switch, and run the wires to it from my relay.




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