Forcing the aircon fan on

[winchman]

My aircon desnt work due to lack of gas and a big hole near the rear pipe work.
I doubt I will fix it and was wondering could I make the aircon fan come on as an additional cooling fan ideally via a switch?

[mikeonb4c]

There's no dedicated aircon fan, just the cabin fan(s front and rear). Is that not working?

[rita]

There's no dedicated aircon fan, just the cabin fan(s front and rear). Is that not working?

I think you will find that he is talking about the air con/cooling fan/s on the radiator not the heater motor fans (front and rear)


Is that 36MPG having an effect now.

[rita]

My aircon desnt work due to lack of gas and a big hole near the rear pipe work.
I doubt I will fix it and was wondering could I make the aircon fan come on as an additional cooling fan ideally via a switch?

You should be able to bridge the system with a switch and or relay, you could also fit one of these it has extra fan switching capability.

http://www.ebay.co.uk/itm/111052553849? ... 26_rdc%3D1

[winchman]

There's no dedicated aircon fan, just the cabin fan(s front and rear). Is that not working?

I think you will find that he is talking about the air con/cooling fan/s on the radiator not the heater motor fans (front and rear)


Is that 36MPG having an effect now.

Thats correct

[winchman]

My aircon desnt work due to lack of gas and a big hole near the rear pipe work.
I doubt I will fix it and was wondering could I make the aircon fan come on as an additional cooling fan ideally via a switch?

You should be able to bridge the system with a switch and or relay, you could also fit one of these it has extra fan switching capability.

http://www.ebay.co.uk/itm/111052553849? ... 26_rdc%3D1

I did have one of those, but I would rather have a switch just to bring it on when I need to, so how would I break in to the circuit and where?

[mikeonb4c]

There's no dedicated aircon fan, just the cabin fan(s front and rear). Is that not working?

I think you will find that he is talking about the air con/cooling fan/s on the radiator not the heater motor fans (front and rear)


Is that 36MPG having an effect now.

No, really....I'd never have guessed.

And that's 40mpg if you please

[Diplomat]

...
I doubt I will fix it and was wondering could I make the aircon fan come on as an additional cooling fan ideally via a switch?

I KNOW I wouldn't fix it!

Having just encountered the hottest days likely to be happening this summer without the thought of using aircon even crossing my mind, it would be the lowest of my priorities. However, fixing the window switches so that they open every time I need some ventilation is a priority.

Hopefully there is a way of using the existing switchery to put the fans into circuit without engaging the drive to the pump. I would find some extra manually controlled cooling for the radiator before one encounters a sudden hold up after hammering down a motorway with a full holiday load on board. That always seems to be when the radiator top seam wants to play up.

Only the other day, while driving my runabout car, I deployed the old trick of running the heater flat out with the windows wide open when I found myself in monumental traffic chaos near the Dartford Tunnel. That undoubtedly helped extend the life of the metal/plastic interface on that radiator. Fortunately I just love warm air blowing around my shorts and sandals rather than enduring a climate similar to the chilled areas of a supermarket. I seldom overdress in summer!


Frank

[rita]

There's no dedicated aircon fan, just the cabin fan(s front and rear). Is that not working?

I think you will find that he is talking about the air con/cooling fan/s on the radiator not the heater motor fans (front and rear)


Is that 36MPG having an effect now.

No, really....I'd never have guessed.

And that's 40mpg if you please

I would imagine that you Might Be Irish by the sound of things, and all the "Little People "Shovin.



PS I seem to remember an oil company called ELF.

[rita]

My aircon desnt work due to lack of gas and a big hole near the rear pipe work.
I doubt I will fix it and was wondering could I make the aircon fan come on as an additional cooling fan ideally via a switch?

You should be able to bridge the system with a switch and or relay, you could also fit one of these it has extra fan switching capability.

http://www.ebay.co.uk/itm/111052553849? ... 26_rdc%3D1

I did have one of those, but I would rather have a switch just to bring it on when I need to, so how would I break in to the circuit and where?

You could use this plug using a switch as a bridge...

61.503.

http://lushprojects.com/bongopartsmk2/c ... 1of02.html

[winchman]

You could use this plug using a switch as a bridge...

61.503.

http://lushprojects.com/bongopartsmk2/c ... 1of02.html[/quote]
How will that bring it on?

[Simon Jones]

That will fool the A/C to get round the lack of pressure but running the compressor with low / no gas or lubrication will soon cause expensive damage. May not be an issue for the current owner, but would be a nasty surprise for the next one. Removing the belt would at least save the compressor from further wear & tear.

Perhaps safest option is to find a suitable value resistor that can be switched across the ECU temperature sensor to bring the fans on. The engine manual will have a page (like this one for the scavenger fan sensor) which will show the typical working values.