Fan

[350zwelgje]

Could be the low speed relais from what you are describing.

Can you replace it for a test?

Low speed is needed to keep KV6 from getting too hot and should work when tested (aircon & defrost).



For information: the temperature gauge is useless as it is electronically controlled and will not indicate a higher temperature then normal until it is too late.....



Rob

[Frank Beuningen holland]

Also temperature sender is replaced by new one

[SD1too]

Originally Posted by Frank Beuningen holland

The fan is not turning
Not if i put on automatic
Not if i put it on defrost window ...
When i connect top relais with a screwdriver fan turns at hi revs
When i connect lower relais with a screwdriver fan turns at lo revs
So iv got there 12 volts .and resistor is ok otherwise fan was not turning on low revs

Agreed. Is this the original factory fitted fan and control box?

Originally Posted by Frank Beuningen holland

Airco compressor is not turning.

When was the air conditioning last used?

Simon

[Frank Beuningen holland]

The control box is original fan not, but i have tried old fan wich is olso same story both run if i mace conection

[Frank Beuningen holland]

Must be make
When i take it apart
I i had 2x hot engine.
and you are right about that gauge
Last time with boiling engine fan was working high rev
Can i measure something on the box? To sort it out?
If fan is not working is that also reason airco pump not turning?
Grts frank

[Frank Beuningen holland]

Airco is always on automatic

[SD1too]

Originally Posted by Frank Beuningen holland

Can i measure something on the box? To sort it out?

Yes.

1. Measure the voltage at the small relay coil: red probe to blue wire and black probe to the battery negative post.
2. With ignition on do you see 12v?
3. With engine running and the windscreen demist button pressed the voltage should fall to zero.

Originally Posted by Frank Beuningen holland

If fan is not working is that also reason airco pump not turning?

I'm not sure about that Frank. Our first task is to get your fan system working.

Simon

[Frank Beuningen holland]

Today i have checked if there is power on kable
Thik brown / blue 12 volt
Thik black 0 volt supose it is -
So if i connect those i have 2 speeds fan run's

All other 0 volt
Wich means the coil of relais gets no power.....
But , were does it get its signal? Fuse?

[Frank Beuningen holland]

Termostat between banks?

[Frank Beuningen holland]

Is it posible to make 2 new wire strait to computer?
Ore other options to make fan and arco working
Grts frank