Technical Cabin fan resistor?

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Technical Cabin fan resistor?

fexovih

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Hello, my cabin fan is not blowing and I have figured out it must be the resistor because when I measure voltage from cables it shows 12V and when I attach the fan directly to the batter it runs, but when I plug it to the cables it doesnt work and voltage drop to about 3V or so.

So now I will buy a new resistor but I am not sure which one is correct for my car. I have fiat punto 1.2, year 2004.

I found 2 with very different prices:

silux.si/izdelki/hladilni-sistemi/ventilatorji/upori-ventilatorja-kabine/240383/upor-ventilatorja-kabine-fiat-punto-99

AND

silux.si/izdelki/hladilni-sistemi/ventilatorji/upori-ventilatorja-kabine/197998/upor-ventilatorja-kabine-citroen-xsara-picasso-99-polcar
 
Are you sure it is the resistor pack and not the wiring? I had a similar issue on my daughter's Punto, it turned out to be the wiring close to the connector had corroded / melted through. I cut and re-joined the wires and it worked fine.
 
Are you sure it is the resistor pack and not the wiring? I had a similar issue on my daughter's Punto, it turned out to be the wiring close to the connector had corroded / melted through. I cut and re-joined the wires and it worked fine.

I dont know...but when I measure the vires alone it shows 12V correctly, should that be enough?
 
Hello, my cabin fan is not blowing and I have figured out it must be the resistor because when I measure voltage from cables it shows 12V and when I attach the fan directly to the batter it runs, but when I plug it to the cables it doesnt work and voltage drop to about 3V or so.

So now I will buy a new resistor but I am not sure which one is correct for my car. I have fiat punto 1.2, year 2004.

I found 2 with very different prices:

silux.si/izdelki/hladilni-sistemi/ventilatorji/upori-ventilatorja-kabine/240383/upor-ventilatorja-kabine-fiat-punto-99

AND

silux.si/izdelki/hladilni-sistemi/ventilatorji/upori-ventilatorja-kabine/197998/upor-ventilatorja-kabine-citroen-xsara-picasso-99-polcar
I dont know...but when I measure the vires alone it shows 12V correctly, should that be enough?
No just because you can see a 12v doesnt mean it has the ability to carry current
When it does carry current it goes to 0 due to thebstupudly high resistance

Early mk2 had a connector that often melted.....

All mk2 and mk2b suffer with overheating connectors destroying them and damaging the wiring as well as

You may find if you wiggle the connector - itll spring to life for a brief second....

Look in the guides section - i did a guide on this....

Ziggy
 
No just because you can see a 12v doesnt mean it has the ability to carry current
When it does carry current it goes to 0 due to thebstupudly high resistance

Early mk2 had a connector that often melted.....

All mk2 and mk2b suffer with overheating connectors destroying them and damaging the wiring as well as

You may find if you wiggle the connector - itll spring to life for a brief second....

Look in the guides section - i did a guide on this....

Ziggy

Hey, I have cut the connector on the wires side and the connector on the fan side and connected wires directly, so connectors shouldnt be a problem like it was with my headlights :) Or could it still be something?
 
Can you tell me the colours of the wires where you are measuring 12 Volts ???
And also now you have removed the connectors and wired direct is the 12v still there when you try to switch the fan on ???
 
Remember the fan has a 12v constant +ve feed......

The resistor and switch are all on the negative side

If it cant earth - if it can find another route it does!
Hence the mk2s then went via the sidelight system
Mk2b got a slight change and prevented this happening

But still got the same crappy connector

Ziggy
 
Remember the fan has a 12v constant +ve feed......

The resistor and switch are all on the negative side

If it cant earth - if it can find another route it does!
Hence the mk2s then went via the sidelight system
Mk2b got a slight change and prevented this happening

But still got the same crappy connector

Ziggy

Hey, Im not much of an electrician or so so this is very confusing for me :)

Can you tell me the colours of the wires where you are measuring 12 Volts ???
And also now you have removed the connectors and wired direct is the 12v still there when you try to switch the fan on ???

The vires are the ones that are attached to the fan, in my case the red and blue wire.

I have removed connectors and connected wires from car directly to wires from fan and voltage drops to about 4V or so and it doesnt work.
 
Im sorry for double posting but would really like to fix this thing :) Any ideas based on the last input?
 
Red wire is not as per the wiring diagram I have.
Disconnect the fan and with one probe of your tester connected to the body of the car (- Negative ) confirm he colour of the +Positive 12v
 
See Diagram attached maybe the colours have changed but it will give you an idea
 

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Do as i said in the other post disconnect the fan and measure between each wire and the body of the car , that way we know which is the 12volt and which is the earth (Neg feed)
 
Do as i said in the other post disconnect the fan and measure between each wire and the body of the car , that way we know which is the 12volt and which is the earth (Neg feed)

Ok did that, now I know which is which but what does this help me now? :)
 
Now you know which is which leave the positive contacted to the fan, disconnect the negative from the fan and connect a negative from te ateery directly to the fan.

Does the fan now work ?????

Let me know
 
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