C4 Picasso air con issue

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Johnno55
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Joined: 12 Jul 2021, 18:14
Location: Stockport
My Cars: Citroen C4 Picasso platinum

C4 Picasso air con issue

Post by Johnno55 »

I have a 2013 C4 Picasso platinum with the climate control AC.
Just had speed regulator and heater/blower motor replaced but the AC ( chiller ) only works on max fan speed, even lowering just one speed to 7 the chiller cuts off.
Anybody know why this would happen ?
Even Citroen couldn't discover what the fault was.
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GiveMeABreak
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Re: C4 Picasso air con issue

Post by GiveMeABreak »

Has the car been disconnected from the battery recently or stored without using for a while?
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Marc
Johnno55
Posts: 4
Joined: 12 Jul 2021, 18:14
Location: Stockport
My Cars: Citroen C4 Picasso platinum

Re: C4 Picasso air con issue

Post by Johnno55 »

No it hasn't. I had the recent fault of the fan being stuck on and couldn't be turned off or down which led to those recent new parts.
The air con works fine at max speed but not at all below that speed
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GiveMeABreak
Forum Admin Team
Posts: 37009
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5646

Re: C4 Picasso air con issue

Post by GiveMeABreak »

Ok, the reason I asked is that the system memorises values on startup and any disconnection can reinitialise the settings so it can take a while whilst driving to get things working again. Another member has recently done this with the same issue and found it started working on its own after a while.

Try a BSI reset and then go for a drive:

BSI Reset / Battery Disconnect / Reconnect Procedure
Please Don't PM Me For Technical Help

Marc
Johnno55
Posts: 4
Joined: 12 Jul 2021, 18:14
Location: Stockport
My Cars: Citroen C4 Picasso platinum

Re: C4 Picasso air con issue

Post by Johnno55 »

Thanks I'll try it
Johnno55
Posts: 4
Joined: 12 Jul 2021, 18:14
Location: Stockport
My Cars: Citroen C4 Picasso platinum

Re: C4 Picasso air con issue

Post by Johnno55 »

Resetting the bsi didn't work.
I've noticed a little dot on the drivers control screen of the air con that flashes on start up, is it supposed to do that as I've never noticed it before
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