(24-02-2013, 06:03 PM)Niall Wrote:(24-02-2013, 05:58 PM)R1CH4RD Wrote: Oh and the switch is just speaker cable from battery to a hover switch on dash straight to fan. Then earth from fan to battery. Im useless with electrics so easier the better
That is a fire waiting to happen! Stop using it and do it properly.
Have a similar setup with a slimline fan with it's own power supply cables that goes to the battery but with a temperature probe with a relay into the rad so cut's out when the engine is cool.
Have an inline fuse ready to go into the circuit but I'm not using the car at the moment.