Thread: Replaced TD6 Auxiliary (condenser) fan this morning!

Thanks for posting, if you don't mind me asking what symptoms led you to the aux fan? Im thinking that mine doesn't work.

Thanks

Neil

Thanks Fraser - to add to what Neil has asked, do you know when the fan should operate? Does it work just on temperature, or when the AC is on, or a combination of both? I have never noticed mine working - do they make much noise, or would the engine driven fan drown it out?

At least my engine driven fan is sort of under control. It doesn't run all the time now, which is nice, and doesn't wake the neighbours up when SWMBO drives off in the morning.

Cheers - Gav

Neil and Gav, the Auxiliary fan as far as I know works with 2 scenarios, but it's primary purpose is to get rid of heat from the aircon condenser in hot weather at slow road speeds. It's variable speed, dependent on the pressure in the aircon system so in cooler weather you won't hear it as it will just spin slowly. It will usually come on about 5-20 seconds after you put on the aircon, and you will see it spinning.

It's second function is as extra cooling for the engine, but as I understand it, it VERY rarely does this as it is essentially there as an extreme measure in this role.
I have also read that in warmer conditions, when you turn off the engine, there is an electric coolant pump that energises and circulates coolant through the engine, whilst this fan runs too cool the engine to a preset temp, to stop heatsoak up into the head.

They are a quite common failure nowadays, and I wanted mine fixed before this summer as I'm towing a caravan up and around bright this summer.

There is a pretty good description in RAVE about this fan, and unfortunately they have the speed controller built in to the motor, and are given a 12v all the time, and a skinny 3rd wire carries a PWM signal that "tells" it what speed to run at.

I was quoted $1400 for one from a dealer!!!!!

Thanks fraser great help. Hope you have a great trip :-)