Citroen C4 grand Picasso thermal fuse

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Karlos55
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Citroen C4 grand Picasso thermal fuse

Post by Karlos55 » 12 Jul 2018, 13:55

Hi my blower motor is on full power all the time, changed resistor next step is change thermal fuse. Anyone know location off thermal fuse.

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GiveMeABreak
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Re: Citroen C4 grand Picasso thermal fuse

Post by GiveMeABreak » 12 Jul 2018, 15:07

What's your VIN?, it may be integrated into one of the modules.

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Re: Citroen C4 grand Picasso thermal fuse

Post by Karlos55 » 12 Jul 2018, 21:15

VF7**************[VIN obfuscated, can be read by forum staff]********
Last edited by GiveMeABreak on 13 Jul 2018, 10:27, edited 1 time in total.
Reason: VIN Masked

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Re: Citroen C4 grand Picasso thermal fuse

Post by GiveMeABreak » 13 Jul 2018, 10:26

Ok so you have single Air Conditioning on this model.

I would suggest a diagnostic to obtain the fault code so that you can better ascertain the specific problem. There are quite a few listed.
C4 Picasso Heater A.PNG
C4 Picasso Heater B.PNG
C4 Picasso Heater C.PNG
You only have parts: 1, 2, 3. 4. 6, 8 & 9 on your vehicle.
No 3 is the Heater Motor Control Module.
It is part number 6441 CE.
In this Diaggram, item 10 is the air heating resistance - so I hope you didn't change that as it won't affect the motor.You have heater control variants 3 & 6.
C4 Picasso Heater Motor Module D.PNG
This is the actual Heater Module Blower Module attached to the Blower Motor.
Without a diagnostic to help pinpoint it, there's no way to know for sure whether the fault is in the control panel on the dash or the blower module itself.

I expect if there is any thermal fuse, it will be integrated into the control module.

Karlos55
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Re: Citroen C4 grand Picasso thermal fuse

Post by Karlos55 » 14 Jul 2018, 22:22

I’ve swapped control panel on dash and module attached to blower motor from a friends car, his works perfect but in my car blower on full

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Re: Citroen C4 grand Picasso thermal fuse

Post by GiveMeABreak » 14 Jul 2018, 23:32

So you really need to get Lexia on it to help determine where the problem is. You may have a problem elsewhere, like the engine fuse box.