I too now have this problem in my 2004 54 plated Renault Scenic, the fan will not work on any setting - real nuisance to discover this problem this morning in -5 degrees! My fan has just stopped working - although I have not had any smell of burning or any sign of smoke.
Does anyone know if this could be a switch fault as there has been no smoke etc?
Also those of you who have discussed it with Renault - did you go to a dealership or Renault Head office to complain?
Thanks

Christina Elkins, November 2010

Here is the precise answer to the problem mentioned above. Found it on Renault Forum:

http://www.renaultforums.co.uk/showthread.php?t=78027

Renault Clio 2 - Heater Fan Not Working*FIXED*

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Well after trauling the internet looking for a fix for my blower not working i stumbled across this site, so armed with common faults i started.

Now my fault was no blower on 1234 so this might not help some of you.

remove driver scuttle panel

unbolt firewall 10ish 10mm bolts

unplug fan connector and check voltage with ignition on and fan switch at 4

If you have 12volts then this is the cheap fix for you.

Remove blower unit (3 10mm bolts) and multiplug (slide red part out) and unclip the plastic clips making sure not to snap them (i broke 2 lol)

Now the unit is in 2 halfs grab the fan part and wiggle the motor unit out.

Pop the metal clips off sides to get to the brushes (2 clips & 2 springs)

If like me you will the wires and brushes destroyed.

Search ebay or google for siemens motor brushes and purchase (£12.50 for a pair)

now these will be to big but the graphite is soft as butter so these can be filed down so they slide in witout binding. (might also need to be shortened to around 15mm in length) I used some from a mk1 golf unit so size might vary.

you now need to trim the original wires to 10mm ish in length, also do the same on the new brushes.

Solder the 2 wires together and reassemble.

Plug back up and hey presto working blower.

saving of £195 from dealers for a hours work.

Hope this is of use to someone?

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Further explaination to a confusion:

Its all under bonnet work, the 10mm bolts are on the firewall / bulkhead, you will see the panel under screen area behind engine which will un bolt and allow easy acess to the fan gubbins (not the scuttle tray)
You can then unplug the motor and test voltage.

Where are you putting a direct 12v supply to the fan?

also if like you say the fan works then i would suggest checking the switch or fuse.

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Rizwan Ullah, January 2011

I have 1999 Renault Clio RXE which has been parked for about 8 months. When started the blower fan worked for a while made some noise as it was stuck with something but after that it has been dead afterwards. I have not been successful in finding its Wiring Diagram yet. Have to findout the location of blower fan !!!! If anyone has any clue about the same fault please respond. Renaults must have inherent faults and must have similar solution !!!!

Rizwan Ullah, December 2010