Auto Air Con Stuck On Full

[scottm]

Hello everyone im scott and new to the forum, so hope everyones ok :)

 

basically my partner took the c3 to work today and on the way home the auto air con went on to full and wouldnt turn down or off!!

 

the digital display seems to work fine so id hazard a guess after reading your past experiences it is the speed control resister.

 

could someone please tell me if this is correct and if so how do i fix it with part numbers of resister ect. im quite a technical guy so i dont mind getting my hands dirty.

 

 

Cheers everyone

 

Scott

[paul.h]

When not in auto (use econ button if there is one), can the fan speed be reduced, if yes then your diagnosis may not be correct.

Your Citroen dealer will supply the correct parts if you use the car vin which can be seen at the lower left side of the windscreen from the outside. If you get them to print the parts diagram this ought to show how/where it is fitted.

 

It may be worth disconnecting/reconnecting the battery which may reset a fault - follow the procedure in the car handbook to avoid other electrical problems (it will be something like remove the ignition key, open the bonnet, wait a few minutes for everything to shutdown, disconnect the battery, wait a bit, reconnect it, wait a bit, put the key in the ignition, wait a bit, turn the ignition to position 1, wait a bit, to position that lights up the dash but not start the engine, wait a bit, start the engine, run windows down and up and reset the clock).