Problem with APC40 and Live 8.2.6

[Dayflight]

Hi,
I have a problem in the combination of the APC40 and Live. If I use the volume fader 1 I always
stop the playing clip and run up and down the vertical clip slots.
My question is: Is there a default possibility APC40 - Live to start from the scratch with all correct CC settings?

[S4racen]

Enter midi mapping mode then open the browser, delete the mappings you sound like you've made by accident....

Cheers
D