Question about 2004 Renault 181
2004 reg Renault Clio Sport 2004 - Everything working fine until I stopped engine for about half hour on return found no demist or air con working. all front panel lights/systems operational and illuminated on the air con panel e.g. temp, fan intesity just no actual fan/demist/air movement. Checked all fuses marked with a fan symbol in passenger side fuse box - all ok and so are all underbonnet fuses. Guess its a fuse/relay/supply problem to the fan but can't find fault. Any advice appreciated please. Thank you, from Ian
I also have a 53 clio with climate control and the fan stopped working. After being quoted £104 by dealership I decided to have a go myself. Bonnet up, remove driverside scuttle cover. Unplug fan resistor 7701051272 (large plug with black wire to fan)remove securing screws and resistor. Dismantled casing and peeled away gel from soldered side of circuit board around mosfet transistor-desolder and remove. Mine was a N342AD 75344G but the nearest I could get was HUF75337P3 from Maplin £1.68. This was the wrong 'package size' but I managed.Close the clamp slightly (before)to hold transistor firmly and then insert transistor and solder. Reassemble. After I got an email from a scrappy QUOTING £20 if you don't fancy the messing about.
Posted on Aug 31, 2009
My son had the same problem with this so called resisor pack to control motor speed.
The sticky gue inside is silicon to keep out dampness and the device that blows is a N Type Mosfet.
I was unable to get the device number from his as it had a hole burnt out of it
I did a little searching and ended up replacing it with a IRFPS37N50APBF from RS components this is a 500v 36 Amp N channel Mosfet device and it seems to be working fine.
These devices are highly static sensitive so care has to be taken.
This is not a job for amatuers but at £10 including vat its a cheap fix Vidor
Posted on Apr 05, 2009
Hi alicantecoli, thanks for replying, but today I had some time and attacked the problem again. I pulled the air blower (not too difficult - remove cover panel over the wiper area lh side looking from front, diswconnect wiring connectors and four screws). Two more screws allow separation of the motor from it's housing.
I found the problem was worn down carbon brushes. A visit to a local washing machine repairers got me a new pair of suitable brushes - cost £3.50, much better than Renault's price for a new blower assembly at £231.70. Spare brushes are not available frrom Renault.
As for the noise from the binnacle, inside there is a small motor which draws cabin air over a sensor located in its throat. Renault say 'they all do that mate' and expect to change the motor every 40,000 miles or two years! Hmmm most of the noise is due to resonance of the plastics where the motor is fitted. Some hot melt glue has fixed the problem. TBH the whole method of mounting is rubbish - it's certain to have this noise problem.
Hope this helps.
Posted on Nov 16, 2008
Hi, we had the same problem about a year ago with the climate control on our 2002 172, unfortunately our local garage couldn't find the fault as the fan motor worked ok but none of the controls did, our renault dealer found that the heater resistor pack had failed, £86 +vat for the part and £80 +vat to fit it. Can't tell you where the part is but it may have some serviceable parts on it when you do find it, part no; R7701051272. Mike
Posted on Feb 20, 2009
Thanks guys for assisting. I've found the variable device that regulates the fan motor - having eliminated a faulty fan blower motor. The sequence is from the LHS the fan sucks in cold air passes through air filter and next this device sits in the air passage with a large aluminium heat sink on it which is cooled by the air passing over it. at first it looks like a 5/6 way connector bolted to the air passage but it's actually inserted into the airway. I expected this to be a resistive winding - each winding giving a different voltage and therefore different fan speed - however its a semiconductor device bolted to the heatsink sitting in a white jelly substance and surrounded by a plastic housing. It must be a power transistor or triac to alter the voltage to the fan. I've just dropped it into Renault (cheekily) to say can they check if it's faulty as there is no indication from the pins what the connections are. They will let me know or give me a wiring diagram/fault diagnostic - so fingers crossed and I'll let youi know!
Posted on Nov 18, 2008
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Posted on Jan 02, 2017
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