Thread: Aircon Thermo Fans

If you look over the fuse connections and test with a probe test light you will see that the fan wiring is linked from the a/c switch - therefore if the ign is "on" and if the switch for the a/c is "on" the fan wiring should be live and the condensor fan(s) should run.


Check the connectors and the fuse...

Connectors vibrate and wiring deteriorates over time.


There are many other causes of overheating.

Thanks heaps... Do you think the thermo fans not working with the AC on, on a hot day would cause ol' Landy to overheat????

Originally Posted by Superhux

Thanks heaps... Do you think the thermo fans not working with the AC on, on a hot day would cause ol' Landy to overheat????

maybe/perhaps (depending on the condition of your radiator and cooling system) ... but why is the condensor fan not working ?

nope, overheating from failed AC fans usually only occurs with the AC on
if

you spend lots of time at idle
you spend lots of time at low speed
your VC is shot
your fan is shot
you have other cooling issues
you have electric fans fitted that are too small (flow rate/diameter/both)
you dont have your shroud fitted.

Thanks for the info.... In relation i have now got test the thermo switch on the thermo stat housing... the inner one is for the temp gauge the outer i have found is for the fan sensor???

PS How do I test a viscous coupler?

Cheers,

Again thanks heaps for all the info.

Is anyone able to tell me how to override any sensors to the thermo fans... I cant find a connector anywhere...

Cheers,

Dave

If you are looking at replacing the thermo fans, I found some generic fans in an auto parts magazine for $20 each. If you are interested I send me a message and I will try and find more detail for you.

Regards
Jonesy

Hi mate, not sure if this may help but you can use the madman ems engine monitoring system to trigger a kenlow fan at a pre set temperature. This may assist in keeping your engine a little cooler.