renault clio heater fan not working?

Hi my friend clio is 04 reg the clio fan is sometimes working sometimes not. Fuse is good. With wire nothing problem just coz fan turn on off hes self. what we can do? Any help?
07436616515

Laszlo
January 2017

Hi I have a clio and a wire has come out in the engine bay and dont no were it goes can u help please its on the passenger side its in the sme loom as the starter motor its has a black case with a yellow outer that plugs in some were with a blue thin band and its a y reg 2001 model 1.2 16v thank you tony

tony
June 2014

Here are 2 tutorials:

http://www.youtube.com/watch?v=PgZE0eM65iY

and


https://www.youtube.com/watch?v=krbIlqbXQbo

Akai
November 2013

Thank you John (fife handyman). That worked straight away

Simon Elms
November 2013

Hi All, my grandson heater won't work, I've tried the electrics to it and they are ok,and I can turn the fan around but motor dead, any ideas, Thanks.

dave scattergood
August 2012

j' ai un grand probleme avec le chauffage moi aussi sauf que moi dans ma voiture fonctionne sans arret j' arrive pas a l' eteindre

m
May 2012

Just repaired my son's heater blower on his 1999 8v 1.2 clio. All that was required was to clean up the contacts with WD40 at the blower housing. Taking the wipers off to remove the plastic scuttle was difficult even with a Draper window wiper removal tool. The 3 bolts locating the blower housing were also a little tricky to gain access to the connector. All in all a difficult job taking a couple of hours, but hey saved a fortune not having to go to the main dealer.

Gary Lambert
January 2011

Hi my daughters 01 Clio was filled with a burning smell and had to pull over suspect it might be something to do with the heater fan anyone had similar probs also heater controls are knackered are these easy to replace

Stan
January 2011

my son had the same problem fan not working , checked the usual fuses in side of dash , disconnected fan resistor thats under the plastic cover on the drivers side at the bottom of windscreen just pulls of, the resistor held in by a small screw once out that comes away from the fan , i rotated the fan to make sure it hadnt seized , okay the 2 wires coming out the resister one black other red follow them down to the bottom of the fan housing there you will feel a small plug make sure that is pushed in all the way ours was slightly out hence fan not working its very tight so small hands are a must, if you want to test the fan run a wire from the red cable direct to battery and black to earth , the resistor is about £65 and the fan more expensive , the relay in the engine bay and the fuses are cheap which is always the best place to start.

graham
November 2010

I had the same problem with my 51 plate Clio. I traced it to a bad connection inside the motor itself, where the connector pins for the plug are terminated. I stripped the motor apart by carefully removing the staking that holds the rear bearing & the brush housing & then soldered the connection. Having reassembled the housing to the motor I re-staked it in position using a small sharp chisel.
From reading other comments left on the internet this is a common Clio fault.

Cleaver Dick
March 2010

in relation to kayball's very descriptive and informative explanation of how to repair the air con power unit, I have replaced the mosfet chip with the alternitive that Maplins are currently selling. Unfortunately in this instance it didn't work, it was giving the same outcome, max voltage and full power at the fan when the ignition is on. I have checked the actual control unit in the dashboard is operating correctly by testing the voltage on pin 2 and trying the different "speeds". So it really looks like the power control unit is the problem but are there any other components that could be replaced in there? its just strange how the new chip is giving the same problem, any comment or advice would be greatly appreciated, if not, best chance of replacing the unit? dealer/scrappy?

stephen
January 2010

Repaired my 03 Clio heater blower today. The problem was the rotor of the motor had become dirty with deposits from the motor brushes so the motor couldn't start.

You have to remove the fan blower from the car then remove two screws that hold the motor into the plastic casing. Pull out the motor and look at the end of the rotor where the brushes make contact. Clean them with a lot of cotton buds to remove all traces of conductive dust.

It now works like new.

TonyT
January 2010

Usually it is just damp and a bad connection on the main plug to the fan.I did this: Take wiper arms off.Remove scutttle(The plastic bit between wipers and bonnet under the bottom of windscreen) Remove plastic cover thats over the heater motor.You will then see a black plug.In front is the wiper motor.Unless you have very small hands it might be best to remove the wiper mechanism.You can then access the plug easier.Remove it and look for rust or damp.Remove it with a paint brush and ensure the mutli plug terminals are clean.Replace plug and check fan works.One satisfied replace all the bits.Was told its a fairly common fault on Clios.I also sprayed WD40 to keep out future damp. A dollope of Vasaline also works well.

Sladedestiny
January 2010

sorry cant edit last post I think i should have been thanking Kayball
many many thanks

very happy bunny
January 2010

To Neil
many many thanks for the fix for the fan power unit
got the mosfet from maplins but had to bend the two outside pins to fit,(not to difficult) as it was quite a bit smaller than the one i took out.
plugged in and wow it worked
(2002 clio sport)

very happy bunny
January 2010

Original Fault Symptoms.
Renault Clio (2002 on) with full Automatic Air Conditioning
- 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 intensity - 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 under bonnet fuses. Guess it’s a fuse/relay/supply problem to the fan but can't find fault. Any advice appreciated please. Thank you, from Ian
Later Comments:
It turned out to be the Air Conditioning Fan Power Unit (61) given these problems it’s likely to be either this unit or the climate control computer. Some models have the resistor pack - this is in the fan housing but the power control module (Air Conditioning Fan Power Unit) is located in the air flow pipe work between fan and cabin, after the filter. It’s worth checking it’s faulty before buying as it costs £94 quid!.

Testing System
NOTE: Unit reference numbers in brackets refer to items marked in Circuit diagram for Automatic Air conditioning in Haynes Renault Clio manual 4168 - Page 12.27

Initially, check 60A Fuse F8 and 30A Fuse F11 in Engine Bay Fuse box (4) for continuity.
Open bonnet then, remove drivers side scuttle cover (remove wiper arms with blades if necessary to gain access to Air Conditioning Fan Unit (62) and Air Conditioning Fan Power Unit (61).Ignition ON
Check for 12v on pin 4 of the Air Conditioning Fan Power Unit (61) and also on pin 1 of the Air Conditioning Fan Unit (62) Note: Both wires are Red
If 12V is present at both points, then temporarily link the earth at pin 5 (black wire) of Air Conditioning Fan Power Unit (61) to pin 2 of Air Conditioning Fan (62) then check that the fan operates at full speed. If not, then either the Air Conditioning Fan motor (62) is faulty or black earth lead at pin5 is not grounded to chassis.

If 12V is not present at points detailed in previous paragraph, then set Ignition to OFF.

With ignition OFF, locate the Cold Air Delivery Relay (63) which is a yellow relay on an individual holder in the Engine Bay Fuse Box (4).. Check for 12V on terminal 30, an earth (chassis) connection on terminal 85 and 0 Volts on terminal 86 of the relay
Set Ignition to ON and then check 12V is now present on terminal 86.
If 0 Volts is still present at terminal 86 of the relay (yellow wire), then switched supply from Ignition Switch (2) is missing. Check 12Vsupply at both sides of Fuse F34 (20A) in Main Fuse Box(3) then, if satisfactory, check for open circuit of all yellow wiring between relay terminal 86 and Main Fuse Box(3) If no 12V supply to Fuse 34, check wiring to and from Ignition Switch (2 ) including 60A Fuse 8 in Engine Bay Fuse Box (4)
With supply of 12V at terminal 86 of relay, 12V should now switched from terminal 30 to terminal 87 of relay. Replace relay if this does not occur.

With Ignition still set to ON, check 12V is now present on both terminal 4 of the Air Conditioning Fan Power Unit (61) and terminal 1 of the Air Conditioning Fan Unit (62).
Check for earth on pin 5 of Air Conditioning Fan Power Unit (61) Note:- the pins are numbered 1-5.
Disconnect the connector from the fan power unit and then, with ignition ON, temporarily link together pins 1 and 5 of the free connector socket..With the link in place, the fan should run at full speed - if not the fan is faulty.
To check for correct operation of the Air Conditioning Fan Power Unit (61), which controls the speed of the fan in response to signals from the Air Conditioning Unit(56) and the fan speed controller, perform the following sequence:-
With the Air Conditioning Fan Power Unit (61) reconnected;-
Check the voltage between earth (chassis) and pin 2 of the unit (this is difficult to access due to the compact nature of the wiring). It should vary as follows
speed 0 13.94v
speed 1 11.36v
speed 2 10.17v
speed 3 8.93v
speed 4 7.69v
speed 5 6.34v
speed 6 5.13v
speed 7 3.8v
speed 8 0. 1.4v

If it does vary as detailed (approx voltages), then the Air Conditioning Unit(56) is operating correctly. If the fan speed does not vary in sequence, or the fan speed remains constant, then replace the Air Conditioning Fan Power Unit (61)

Repairing the Air Conditioning Fan Power Unit
The following instructions are offered to those with basic experience of electronic circuit repairs:-
Open bonnet then, remove drivers side scuttle cover (remove wiper arms with blades if necessary. Unplug large plug with black wire to fan then remove securing screws. The 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 glance, it looks like a 5/6 way connector bolted to the air passage but it's actually inserted into the airway. Dismantle the casing then peel away silicone sealer from the soldered side of circuit board around the power MOSFET device. De-solder and then remove the MOSFET.
Caution: The power MOSFET device is very sensitive to damage caused by static discharge. Ensure all items. including hands, are grounded before they come into contact with the device leads.
The original power MOSFET fitted is normally a 75344G3, 75A, 55V device, but this item is no longer manufactured and is therefore difficult to obtain. The best, easily obtainable, equivalent is currently available from Maplin, and is a Fairchild type HUF75337P3 at a cost of £1.95. This has an identical power specification but a slightly higher Drain/Source resistance (0.014 Ohm compared to original item’s 0.008 Ohm). The P3 suffix, however, indicates that it is in a TO-220 package in place of TO-247 necessitating that the clamp is ‘closed’ slightly, before fitting the new item to give it a secure fit. Pin connections are the same so, when fitted securely in place, solder into position. Replace any silicone sealer removed during disassembly.
Note: If a HUF75337G3 or a HUF75344G3 can be obtained, then the suffix G3 indicates a TO-247 package which is the same package as found on the original device. However, Maplin do not currently stock this latter item. Another alternative but identical device, which is currently manufactured by Toshiba is a 2SK22987 which is in a TO-247 package. This item is distributed by Harris. A more modern near equivalent, with very low Drain/Source resistance of 0.005 Ohm, but in a TO-220 package, is an STB80NF55-06.

Kayball
December 2009

Thank you for the assistance of these answers I would just like to add a bit about a V reg cleo basic model.
After removal of the three wiper nuts and after liberal amounts of wd40 and prising off the wiper arms the two plastic grilles can be removed. There are three nuts securing the fan motor, one is accessed under plastic wiper (rain deflector i think)which can then be maneuvered out.
I found that pressure on the 'plug' caused the fan to work so i removed plug, and cleaned with wd40 and sqeezed contacts together slightly and checked for dirt etc. Put plug into contact and then turned key and checked operation. Putting fan motor back was a little tricky, put my other half with her slimmer hands managed to pop one of the nuts back in for me to tighten.
Make sure you put all nuts back in before tightening.
Need to get a couple of the plastic button fixings which broke when i took off plastic covers, but they fit back on ok and then line up wipers right on the screen. Check all correct, happy days, hot air and clear screens .

daf wal
December 2009

my clio dynamique 16v ..1.2 petrol.. the heater fan is not working... how can I fix this problem... mechanics want to charge me nearly £300....plus vat... someone should help me... ..07552555029

moses
December 2009

Just fixed my daughters 02 clio heater not working no power to switch, open bonnet, remove drivers side scuttle, (plastic bit between windscreen and bonnet) in front now is fan unit, large multiplug with red end faces you, pull red end out and shake multiplug free, in our case this was red with rust, good old wd 40 + some sand paper to make good, its a whese to remove heater fan 2 x 6mm bolts and its out dont be frightened its not difficult.

john, www.fifehandyman.co.uk
December 2009

Hi have a x reg clio..etoile. my fan suddenly stopped working a couple of days ago although comes back on for a few seconds every now and again. Rang the garage today and they quoted £70 just for the labour but is unsure of the motor price until i give him the chasis number.
Any one no how much about a motor costs? i really dont want to take it to the garage so if its easy will get my other half to have a look the week end.

mrs crash
November 2009

hi i have renault clio 02 plate and i have just had lamber sensor fitted and also a thermastat gasket fitted and when i got my car bk from being fixed my heater blower does not work and it did before the above repairs where done and i have check fusses and there ok and also my car has aircon fitted so can some 1 plz help with a solution 2 this problem.

sid
November 2009

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.

Ian
August 2009

I have an 06 Clio Dynamique, and am having a similar problem. I am getting hot and cold air when desired, but my fan will only work in settings 0-3 (ie off, and all but the highest setting).

As far as I can tell by looking at similar clio fan motors online, there are only one two wires going to the fan.

This shows that the fan speed depends on whats going through these, rather than another connection to a possibly damaged part.
This suggests that the motor itself is not at fault.

Is there likely to be a fault in the actual knob that you turn on the dash - ie dirt behind the contacts?
Where abouts is the control circut for the motor located, and will this involve removing the dash?

Pete
May 2009

Hi, I have the same problem - heater blower not working - I see people say that it might be the rehostat - how can I get to this part ?

Jim H
March 2009

i've had same problem and as i was quoted stupid money to fix i bought 12volt cig lighter heater to de-mist windscreen off ebay £10 i know this is not really a solution but with current weather it was all i could afford and turned out 2b the best saving ever! just make sure u get 150w and NOT 200w model it kept blowing fuses! av fun.

sycosid
February 2009

my clio is an 02 the fan will only work on the 4 setting

peter
December 2008

AS A RENAULT SPECIALIST GARAGE I HAVE COME ACCROSS THIS BEFORE USUALLY THE HEATER RHEASTAT. NOT A BAD JOB FOR A COMPETANT MECHANIC

MALTECH
December 2008

i've had same problem also intermittent until stopped altogether....cold weather has forced me to address it one way or another, took to renault garage quoted 200 quid for new fan he added it might need new rheastat also plus labour so i walked...i hunted around tat yards for 53 reg clios carrying my suspect heater fan assembly to match but could not find a clio newer than T reg...refiited the suspect fan and it only started working....worked with all the speed settings for a couple of seconds then finishing up working on only the highest speed (4) setting... i might remove again to look closer at the heavy duty circuit thats situated on the fan assembly casing (not sure what that circuit is yet)...i used a wire brush on all metal terminals might remake a bad connection

bigfish
November 2008

ps. My clio needs a 'star key' to take the dashboard off...I assume yours will too!...the size you will probably need is a T20 but might be best to get a whole set of them. You can get them from Halfords for £9.50

http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_232555_langId_-1_categoryId_165469

K
November 2008

I have that exact same problem with my Clio. I took it to the garage last week and he said he would have to take the dashboard off to have a look. He said it might be the motor, and if it is it wont be cheap to replace. So would love to know how to fix it too if anyone has an answer...don't wont to pay out loads to the garage. (Sorry I don't have the answer myself).

K
November 2008