FRONT WONT LIFT!

OK, I FINALLY FINISHED BAGGING MY FULLSIZE, BUT THE FRONT WONT LIFT. THE FIRST PROBLEM I HAD WAS THE DRIVER SIDE BAG WAS BEEN FILLED. WITHOUT HIT THE SWITCH. MY BUDDY TELLS ME I PROBABLY WIRED IT BACKWARDS. SO I REWIRE IT SET IT ON THE GROUND, HIT THE FRONT SWITCH BUT IT WONT LIFT. I CAN HEAR THE VALVES CLICKING. THEN I HIT THE SWITCH THE DROP IT AND AIR FLOWS OUT. I'M ALREADY FRUSTRATED WITH IT. WHAT DID I DO WRONG?