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Old 14-01-2015   #1
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new heater fan

So after my water ingress problem my heater fan is squeaking.
2006 1.8 petrol.

Do I have to buy from FIAT (I don't like going to them after an incident) or can I get it online anywhere?

Any makes I should avoid?
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Old 15-01-2015   #2
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Re: new heater fan

Hi I have had some trouble with our heater motor and I am sure the cause the motor bearing sitting in a pool of water and if I was more generous a new motor is the answer I have had a number of attempts at curing it and still not perfect. The new ones are made by valeo and some Vectra’s share the same part I think eg http://www.ebay.co.uk/itm/3314176257...%3AMEBIDX%3AIT
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Old 16-01-2015   #3
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Re: new heater fan

Thanks, I'll double check the part numbers. That price isn't too bad.

The squeak is annoying me, even though it isn't there all the time.
I can't be bothered to try to repair.
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Old 23-06-2015   #4
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Re: new heater fan

Hi,

My heater fan is now completely dead. Fuse is fine.
I am about to go on holidays and would obviously prefer it to work!

The link above brings me to an eBay item, but when I select Fiat Croma it says it won't fit.

I have some part numbers off the fan unit but 73421312U is actually just the resistor unit, perhaps I have to take the whole thing out to get the full part number?

How do I definitively get the actual part number... give my chassis number to FIAT? Would prefer to avoid that, but I do not want to buy the wrong item and it's confusing me, what with GM/Vectra/Saab mentions....

Thanks.
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Old 23-06-2015   #5
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Re: new heater fan

OK so I am trying to remove this thing.
I have taken out all the screws I can see and now there seems to be 2 clips and I'm not sure how to release them.

One is hidden near the glovebox back wall... do I need to remove the inside of the glovebox to access??

I do not want to break any clips resulting in not being able to get the new one back in properly!

Thanks
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Old 24-06-2015   #6
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Re: new heater fan

I had water in through the pollen filter, the little drain pipe from the windscreen rubber was off and the water drain below it was blocked. This blew the heater controller.

Mine was changed without removing any parts of the glove locker.

Keith
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Old 24-06-2015   #7
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Re: new heater fan

OK I'll have another look tonight.

I did take off the heater resister box thing and it looks nice a clean inside with not water damage or burning, so i'm assuming I need the fan/motor unit.
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Old 24-06-2015   #8
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Re: new heater fan

Hi you might need both the motor and the resistor as the fuse did not blow. The motor is a simple ring magnet type, and I think if it were seized it would blow the fuse or upset the resistor. I had two goes at fixing our motor but I eventually bought newish motor. The motor is handed as I discovered when I fitted a left hand drive one to our right hand drive Car (It sucked instead of blowing) and it took me some head scratching to make a good motor from the old and the new ish one. Some good water proof grease on the bearings would help.
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Old 24-06-2015   #9
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Re: new heater fan

I have priced up a new motor/fan/housing from my local FIAT dealer at EUR215 which is about GBP125/130.

I'm assuming I get the housing, fan, motor and resistor with this!
If the resistor isn't included then I hope mine works. It is spotless inside and no burning marks etc.
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Old 24-06-2015   #10
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Re: new heater fan

Hi again before spending i would test the motor there are two pins that you can connect straight to a battery if it spins then it's the resistor at fault you will have to get it moving if it has seized though. There are three small cap screws that hold the motor in the bottom case with the resistor out pull the motor and fan out you can get at the bottom bearing which may be the problem as it sits in a pool of water. I took the carbon brush brush pack apart as part of my drama power is supplied to the brushes via to small coils wrapped around carbon rods suppressors I suppose. On ebay item 221783971074 is a motor and resistor which may be a straight fit or all the parts to fix yours.
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Old 24-06-2015   #11
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Re: new heater fan

Ooops if it is left hand drive better stick a lhd blower
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Old 24-06-2015   #12
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Re: new heater fan

Hi Telegraph,

I have done just that!

Took it all out and the fan can spin when hooked up to the battery.
But I cannot get it to spin when hooked up to the 2 spades on the 4 spade resistor block (I assumed the 2 thick black/red cables were the right ones and not the smaller wires for signals?)

I'm not sure if the EUR215 I was quoted would have included the resistor.

Either way... the fan was squeeking, so unless I can get the resistor separately and then somehow successfully lubricate the fan then perhaps I am better off getting both?

To lubricate the fan, do I need to remove it from the shaft and clean/lube? The shaft looks rusty at both exposed ends.

There doesn't seem to be any wear to the plastic housing and the fan has not dropped and is not rubbing against the housing.


That eBay item has the same part number as mine for the resistor but there seems to be a distinction between those with auto aircon and those without. I am loathe to take a chance TBH.

Anybody know how much a new resistor costs, even in the UK?
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Last edited by El Kabong; 24-06-2015 at 22:16.
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Old 26-06-2015   #13
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Re: new heater fan

Search this forum - I swapped mine OK. I bought mine from a SAAB dealer that was clearing stock. You can also use a Vectra one.

Avoid used ones - they're usually knackered, and it's a pain to fit. I also tried a Euro Car Parts cheapo equivalent, and it was crap.

Mine had climate control, but I bought a fan intended for manual air con and swapped the new fan/motor into the old housing. The fans are the same, only the housing and resistor/control packs differ. The climate control housing has a hole in a different place.

LHD and RHD are not swappable, as they spin in opposite directions I believe.
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Old 03-07-2015   #14
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Re: new heater fan

Help!

I rang my local FIAT dealer and asked for a heater resistor. He said it was 50eur, which was cheap I thought.... and quizzed him, and it turns out that is is a small green plastic thing.

This is not what I thought was the heater resistor. He has sent me a diagram and his part seems to come from up behind the fan housing. He is saying part 77363759

Like this: http://www.ebay.com/itm/FIAT-CROMA-H...item2802a19909



The part I thought was broken for me comes from underneath the fan motor and is the metal/black plastic narrow box that plugs into the fan motor, and the loom. What is this really called?
Like this: http://www.ebay.com/itm/FIAT-CROMA-0...item33a3061595

I though this was broken, because the fan would not spin when I ran power through this..... but it was outside of the car... perhaps I need to have the green resistor in place for testing???

I'm lost here now and am not sure what to buy!
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Last edited by El Kabong; 03-07-2015 at 11:17.
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Old 03-07-2015   #15
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Re: new heater fan

I'm worried I will fit the more expensive part and then when I turn it on perhaps my resistor will cause it to fail immediately.

I did have a root around for that 'green' resistor and didn't see anything, which I had it all dismantled.... perhaps I was blind?

I'm hoping they have made a mistake and I only have the 1 part.


edit: now he is telling me that The fan/fan motor/housing and this controller are 1 part.
I have given him part number 73421312 but it isn't coming up for him, so perhaps it has already been replaced in my car with a non FIAT part?
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Last edited by El Kabong; 03-07-2015 at 11:51.
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