AC pump starts but the fan is not blowing anything on speed 1.

Hello!

I've got a problem with my C3, it all started with the AC not working.
I've fixed the leak in the AC system and refilled the system, now when I press on the AC button on the controlpanel with the fan speed above 1, the AC pump is not starting to move.

But if I use fan speed 1, the AC pump starts but the fan is not blowing anything on speed 1.
The fan works perfectly fine on fanspeed 2-4 but not on 1.

What could cause the problem that wont allow the AC pump to run on interior fan speed above 1 and why wont the fan work on speed 1?

Might there be a problem with the fan controlpanel?

I've checked the fuses, gas in the system, tried to changed ac pressure sensor.

I attached a image of the fan controlpanel.

Thanks in advance!

Hello Tryout

I know the ECU monitors the air con system pressure and if the pressure is not in the correct limits you won't get it working correctly. I guess you have the correct quantity of gas in the system.

Tryout wrote:What could cause the problem that wont allow the AC pump to run on interior fan speed above 1 and why wont the fan work on speed 1?

Might there be a problem with the fan controlpanel?

I don't know what the answer to the question is, but you have done the hard part and removed the control panel if that is yours in the picture. It won't take much to swap another one in its place (job for ebay here). This may just be a quick way to test the control panel you have.


Lexia (here) can show A/C ECU control statuses

C3driver52 wrote:Hello Tryout

I know the ECU monitors the air con system pressure and if the pressure is not in the correct limits you won't get it working correctly. I guess you have the correct quantity of gas in the system.

Tryout wrote:What could cause the problem that wont allow the AC pump to run on interior fan speed above 1 and why wont the fan work on speed 1?

Might there be a problem with the fan controlpanel?

I don't know what the answer to the question is, but you have done the hard part and removed the control panel if that is yours in the picture. It won't take much to swap another one in its place (job for ebay here). This may just be a quick way to test the control panel you have.


Lexia (here) can show A/C ECU control statuses

Air-Con_deactivated_faults_Lexia_Citroen_C3.jpg

Swapped the controlpanel, problem still exists.
The interiorfan does not run when it is set one (1) in fancontrolpanel.

AC runs fine when fan is one (1) but disconnects on 2,3 and 4 in speed.

I have no clue whats causing this problem..

Tryout wrote:I have no clue whats causing this problem..

I would say to try lexia next.