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Old 17-01-2007   #31
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re: Climate Control [faulty fan?]

Thanks for your reply-its still driving me nuts. 3 hour drive yesterday with no heater, then 3hours on way back no problem! Its the 2 zone climate control version, and it switches on or off apparently at random when I set it at say 22 degrees. Looking at my manual I think the little snowflake on the speed is as you say the ice warning, but the one on the heater display shows when the air con compressor is on -which it seems to be at random-even when I've asked for 22 degrees! No word from the dealer-I think they will want to change the whole unit, but in my 30 years of owning cars I would have thought a loose connection more likely?
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Old 17-01-2007   #32
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re: Climate Control [faulty fan?]

The snowflake symbol on the climate control display screen is simply an ice warning (like the one that somes up on the dash display), so forget about that turning on and off - its not part of your problem.

When you say the Climate Ccontrol switches off, do you mean that the Snowflake button (ie, the switch that actually turns on the air con) turns itself off after a period of time (the light goes out on it), or do you mean that after a while the fans slow down/stop then turn on again?

Depending on what mode you have your CC in, the CC will cycle on and off. If you set it to Manual or Auto it should stay constantly on. On Full Auto mode the CC will continously adjust the internal air temperature and fans, depending on the external environment conditions.

In Full Auto mode, the Snowflake button should always be illuminated. If its turning off in Full Auto mode, then it is a wiring/connection problem.
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Old 25-01-2007   #33
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re: Climate Control [faulty fan?]

Thanks very much for your reply. Of course its been working ok for the last few days-and i havent dared touch anything. However this morning -as it snowed overnight -nothing would come on -I tried manual, auto, full auto and demist. Although the Fan bars were showing-there was no fan. The snowflake does sometimes appear-but not necessarily when Full Auto is on. Sometimes it seems as though it comes to life and the fan comes on after a few miles. Is there anything I can do to test it to see what is happening? Brrr!
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Old 26-01-2007   #34
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re: Climate Control [faulty fan?]

I had the very same problem with my Stilo, In the end i had the fan unit replaced for about 204.00 as Fiat wanted nearly 800.00 to replace it, there is someone that can replacing them in Nottingham, don't know which part of the country you are in
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Old 26-01-2007   #35
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re: Climate Control [faulty fan?]

Thanks LeeLee, I am in Norwich, but would definitely drive to Nottingham for £600, even without a heater! Can you remember the garage, and any other details?
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Old 26-01-2007   #36
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re: Climate Control [faulty fan?]

Hi

Its called Neil Harrod Ltd they are at Stanton Works Bath Lane, Mansfield, Nottinghamshire, NG18 2BZ

Tel: 01623642461

Ask to speak to Simon if he is still there.

They had the car for a couple of hours and also included in the price was a new heater loom as well.

Sounds like the same problem to me were it would work for awhile then not, by the time i had it changed it wasn't working at all.

Lee
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Old 01-03-2007   #37
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re: Climate Control [faulty fan?]

Thanks for the info.I took mine to the fiat garage at Barford near Norwich. They fixed it with new fan and loom for around 200, but they had the car for a whole week. Apparently the part number is wrong, and eventually I suggested they ring your garage to get the right part reference. It was helpful I think to quote your cost to them too-thanks!
Quote Originally Posted by leelee01 View Post
Hi

Its called Neil Harrod Ltd they are at Stanton Works Bath Lane, Mansfield, Nottinghamshire, NG18 2BZ

Tel: 01623642461

Ask to speak to Simon if he is still there.

They had the car for a couple of hours and also included in the price was a new heater loom as well.

Sounds like the same problem to me were it would work for awhile then not, by the time i had it changed it wasn't working at all.

Lee
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Old 20-03-2007   #38
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Unhappy Stilo Heater Fan 1.6 MW

Help can any of you guys tell me how to remove the heater fan from my Stilo 1.6 Dynamic MW, I have got it off the housing but can not get it passed the steering and pedals. How much has to be removed to get the dam thing out? My wife is freezing in the car in this cold weather! must get it fixed this weekend!!
Thanks for any pointers

Rgds Andrew
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Old 21-03-2007   #39
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Re: Stilo Heater Fan 1.6 MW

It's one of those jobs that's more difficult because the Stilo was designed as a LH drive car so the clutch pedal and steering get in the way. You can get access by using some strong wire or a strong tie wrap to keep the clutch pedal down
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and then release the steering column lower universal joint by taking out the bolt and then pull back the steering column tube, as it's a sliding/ extending tube, out of the way.
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Then you can remove the fan 3 screws and manouevre it out

FOOD FOR THOUGHT
It's a very expensive item and it's just a 12v fan after all. My fan is on almost all the time and at 55k miles is absolutely fine. My Bravo, on 108k miles has the same set up and the fan on that is on almost constantly too so there's probably not much wrong with it and almost definitely it won't be "worn out". So if you're curious and maybe have some basic electrical knowledge, a strip down of the unit is what I would do and see what's wrong. It may just be stuck or have poor electrical contact somewhere internally

Check it for resistance, should be almost zero. If not then it's open circuit. See if the fan rotates by hand. Stick 12volts on it and give it a spin. See if the commutator just needs cleaning
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Last edited by Deckchair5; 21-03-2007 at 10:40.
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Old 21-03-2007   #40
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Re: Stilo Heater Fan 1.6 MW

Many thanks for the tips on fan removal, i think the problem with the fan is the speed control, which I think is built in to the fan itself. There are 4 wires conected to the fan two which have 12v on them when the ignition is turned on (even if the fan is not required to run) and the other two smaller wires carry data to the internal speed controler from the climate control. Have found a half price genuine replacment on e-bay.

Thanks again
Andrew
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Old 21-03-2007   #41
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Re: Stilo Heater Fan 1.6 MW

Have a look here for some more information and wiring diagrams
https://www.fiatforum.com/stilo-tech...er-blower.html

But, yes the motor is fed direct 12v and the other wires provide different earth paths through various resistors to control the motor speed
What I'd do is
Check you have 12v on the red and a good path to earth on the black wire.
Now you know you have power and earth.
With power off, check for near zero resistance through the fan motor to see if it's open circuit, that's most likely where the problem is.
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Old 22-03-2007   #42
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Re: Stilo Heater Fan 1.6 MW

Hi again thaks foryour latest info, I have yet to look further into my fan problem, I have the full climate control system fitted to my Stilo and I think that the fan unit is diffrent to the standered one which has only two conections as shown in the wiring dia. and the speed is controled by the resistor pack giving 4 fan speeds. The climate control system has an infinnitely varable fan speed and a 4 wire conection two large wires ( red+black) which become live whem the igniton is truned on and the other two ( colours unknown ) control the speed. I will see more when I get it apart. Just to define the symptons better, when the ign is turned on the Cilmate control panel goes to full auto for a few seconds them switches to manual. Thanks again Andrew
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Old 27-03-2007   #43
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Smile Re: Stilo Heater Fan 1.6 MW

Job done, after a struggle the fan came out and the fault was corrosion damage to the speed controller PCB. One of the tracks was corroded through, I was able to solder a link across the damage and all working
Many thanks for all the help
Rgds Andrew

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Old 27-03-2007   #44
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Re: Stilo Heater Fan 1.6 MW

Good stuff. Saved a packet there then as they're not cheap.
Most of the heater fans that suddenly stop working won't be worn out but just in need of some attention. I think there's more problems with those that aren't used so often than those used every day
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Old 17-12-2007   #45
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Climate Control - heater fan problem.

Hi everyone, this is my first post after browsing for many years, and wouldn't you know, I am looking some help!
Actually it's my second post, the first one disappeared when I tried to preview it. I spent ages recounting witty tales of my dealings with local (Northern Ireland) FIAT dealers. Perhaps I will get round to it again sometime, but for now I need to get my wife's car fixed.
The problem is that the heater is only blowing at about half speed, perhaps a bit less. It is the 12 speed fan as fitted to cars with the 2 zone climate control. I have taken the fan out and put 12 volts directly across it and it is going full speed no problem. When I test resistance across it, it is zero, but when I include the circuit board in the resistance test, it is 1. Does anyone know if that means the board is faulty, and can I buy a new one? There is mention of a resistor pack on another thread, but I can't find it, apparently it's beside the fan, but I have searched all around that area, on both sides, and can't find it. If the problem is with the board, I don't need to know where it is though.
(Why I need full speed on the fan is that it takes full speed to open the flap on the passenger side to get warm air there, because the flap that controls that broke a long time and I was quoted about 1300 to fix it, so I never bothered. If I put the blower on full, you can hear the flap lifting and the warm air comes through, then you can regulate the heat to suit.)
Any help appreciated, I need to get it fixed, but I don't want to put the fan back in until I'm sure it is OK, it was a wee bit awkward to get out. Thanks.
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