Heater motor

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My Name: Pmillard

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Posts: 7
Joined: Thu Oct 09, 2014 8:38 pm
Model: C3 2009-2013, New shape (A51)
Year: 2010 (10)
Engine Size: 1.4 (16v)
Fuel Type: Petrol
Mileage: 40000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

Hi there,

I have a rather chilly 2010 c3 which the internal heater motor had stopped working on.

I have checked the 40amp fuse under the bonnet and that is fine.
I have done a bit of research and I think that it might be the digital fan controler that is the issue.

Can anybody suggest any other causes of the issue.

If it is the controller can anyone tell me where it is and how to get to it?

Also could anyone suggest a reasonable place to get a replacement from?

Your help would be greatly appreciated.

Many thanks,

Pete.
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My Name: Arfur Dent

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Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
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Hi Pete, welcome to the forum
Pmillard wrote:I have a rather chilly 2010 c3 which the internal heater motor had stopped working on.

I have checked the 40amp fuse under the bonnet and that is fine.
The correct fuse to check is in the glove box area, not the one under the bonnet.
https://citroenc3owners.com/citroen-c3-t ... -t339.html

Pmillard wrote:If it is the controller can anyone tell me where it is and how to get to it?
If its anything like the 2002-2009, then its accessed via the drivers footwell. You can see the pedals on the right of the photo and the controller is arrowed in red.

Image
https://citroenc3owners.com/citroen-c3-q ... -t516.html

Pmillard wrote:Also could anyone suggest a reasonable place to get a replacement from?
I would suggest this link (ebay) - new, guaranteed original parts and check your model is listed, The part seems to cover all C3 models 2002 to 2014.


Please do keep us updated on how you get on :)
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My Name: Missing Lincs

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Model: C3 2002-2005, Original shape model
Year: 2004 (04)
Engine Size: 1.1
Fuel Type: Petrol
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
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Don't discount that it may be the motor itself. Not often they do fail on a relatively new car but not impossible.

Without access to equipment to look for faults on the car the only way forward is trial and error. I'd go for the controller first as it easy to get at and change.

Unless its changed on newer cars, the 40 amp fuse under the bonnet is the fuse for the fan motor. A friend of mine had a problem with the fuse blowing when the fan was on full speed.
If at first you don't succeed, destroy all the evidence and pretend you never tried :lol:
My Name: Pmillard

Contributor
Posts: 7
Joined: Thu Oct 09, 2014 8:38 pm
Model: C3 2009-2013, New shape (A51)
Year: 2010 (10)
Engine Size: 1.4 (16v)
Fuel Type: Petrol
Mileage: 40000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

Ok fuse under the bonnet is ok.

I cant quite get fuse 14 out whilst i am at work so will check that later but i doubt that is the problem as the air con dispay is working and i am not getting any errors about the air bag.

As for the photo i think they must have changed it on the new model because i cant see anything that looks like that anywhere near the clutch pedal.

Any other ideas would be greatly appreciated.
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My Name: Arfur Dent

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Posts: 3433
Joined: Sat Jul 23, 2011 3:47 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 319 times
Been thanked: 121 times

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Pmillard wrote: I cant quite get fuse 14 out whilst i am at work so will check that later but i doubt that is the problem as the air con dispay is working and i am not getting any errors about the air bag.
I would skip;

F14. Parking, Air Bag, Air Con, USB, AMP (15A)

but rather head for;

F17. Demisting/Defrosting all (40A)
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My Name: Pmillard

Contributor
Posts: 7
Joined: Thu Oct 09, 2014 8:38 pm
Model: C3 2009-2013, New shape (A51)
Year: 2010 (10)
Engine Size: 1.4 (16v)
Fuel Type: Petrol
Mileage: 40000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

Just checked f17 40a fuse and that is fine.
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My Name: Arfur Dent

Guru
Posts: 3433
Joined: Sat Jul 23, 2011 3:47 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 319 times
Been thanked: 121 times

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Pmillard wrote:Just checked f17 40a fuse and that is fine.
Then its could be the controller part or the motor that Missing Lincs has suggested or some poor electrical connection. The blower motors are not the easiest things to get to.

On the diagram for the non A/C car (the only 2010 picture I have) shows the fan controller inserted into the heater control box, which also housed the blower motor, heater matrix and various air flow controls.
Citroen C3 Heater Control Box
Citroen C3 Heater Control Box
Number 1 is where the blower motor is, Number 5 is the heater motor control unit. B and C are the ducts that feed air to the foot wells.
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My Name: Pmillard

Contributor
Posts: 7
Joined: Thu Oct 09, 2014 8:38 pm
Model: C3 2009-2013, New shape (A51)
Year: 2010 (10)
Engine Size: 1.4 (16v)
Fuel Type: Petrol
Mileage: 40000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

If where part 11 goes faces the engine bulkhead then i though that 5 was the part when i had a look last night.

Had a real job, kept burning my hands on the hot water pipes directly in front of it.

Ill have another go at getting it out over the weekend when the car is cold and see if i can see anything wrong with it / source a replacement.

Thanks for your help and thankyou so much for the diagram that really helps.
User avatar
My Name: Arfur Dent

Guru
Posts: 3433
Joined: Sat Jul 23, 2011 3:47 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 319 times
Been thanked: 121 times

Post

Pmillard wrote:If where part 11 goes faces the engine bulkhead then i though that 5 was the part when i had a look last night
Yes, it looks like the motor controller module has switched sides and is in the passenger foot well on 2010 and on cars.

Pmillard wrote:Had a real job, kept burning my hands on the hot water pipes directly in front of it.
Well, at least you know hot water is getting to the heater matrix :D
Pmillard wrote:Ill have another go at getting it out over the weekend when the car is cold and see if i can see anything wrong with it / source a replacement.

Thanks for your help and thankyou so much for the diagram that really helps.
No problem. Keep us updated on how things go please :)
You can add an avatar to your account - Avatar or change your vehicle details - Car Bio or even add a signature to your posts - Signature. But this is not all you can do in the User Control Panel :)
My Name: Pmillard

Contributor
Posts: 7
Joined: Thu Oct 09, 2014 8:38 pm
Model: C3 2009-2013, New shape (A51)
Year: 2010 (10)
Engine Size: 1.4 (16v)
Fuel Type: Petrol
Mileage: 40000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

Ok managed to get it out.

I should say that once I managed to get to it it was just a twist out.

Now is there any way to test if this is the faulty part or not?

I have had a quote for £35 from an on-line breakers yard but just want to make sure before i part with the cash as this particular one doesn't appear on Amazon or eBay anywhere, except here ;)


Citroen C3 blower controller G4532002
Citroen C3 blower controller G4532002
Citroen C3 blower controller G4532002
Citroen C3 blower controller G4532002


Once again thanks for all your help!
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