C4 picasso heater blower stopped working

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PeterV
Posts: 2
Joined: 18 Jan 2026, 14:41
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C4 picasso heater blower stopped working

Post by PeterV »

Hi,

I've had my 2017 c4 picasso at the mechanic for a week now. The heater blower stopped working completely, they've changed the fan and resistance module without success. Both them, and me are stumped as to where the actual fuses would be for this? Any fuse box diagrams on the internet i could find, and what they have access to dont match with the fuse boxes i have on the left side, or engine room. Is there an additional fuse location for more exclusive models?

Anyone has any other idea's as what it could be? I'm hoping its just a fuse, but finding it has been troublesome.
PaulC5
Donor 2024
Posts: 2526
Joined: 06 Jun 2023, 15:26
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Re: C4 picasso heater blower stopped working

Post by PaulC5 »

Sometimes an electrical connector can burn out so I would also check the complete wiring and connections to the blower and resistor.
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Mihael_M
Donor 2024
Posts: 191
Joined: 14 Aug 2024, 18:58
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Re: C4 picasso heater blower stopped working

Post by Mihael_M »

See on this page is the instruction manual for fuses.
https://fuse-box.info/citroen/citroen-c ... 2018-fuses
F11 20 A is for Air conditioning fan .
PeterV
Posts: 2
Joined: 18 Jan 2026, 14:41
x 1

Re: C4 picasso heater blower stopped working

Post by PeterV »

PaulC5 wrote: 18 Jan 2026, 15:44 Sometimes an electrical connector can burn out so I would also check the complete wiring and connections to the blower and resistor.
It was this! Burned connector. Which also destroyed the fan and resistor.