Trying to help the cause here,
Is this the controller you have? There is an instructions pdf there too.
http://www.hopkinstowingsolutions.com/products/brake-controllers/agility_brake_control.htmlIf it is, it is a proportional controller which is good, just it may not be a digital one.
First is the unit mounted mounted like these instructions state? Both on the angle position from the side and straight ahead?
If it is, then it sounds like the gain and boost needs to be tweaked in. They call this the "power" setting and then the "sensitivity" setting. Especially if the manual lever give good braking.
It appears on this controller the "power" setting adjusts the max amount for power from 0 to 100%. Then the "sensitive" is adjusted to make it happen quicker, be more sensitive.
Did you do the 20 to 25 mph aggressive braking setup to keep up'ing the power setting until you almost lock up? And did you try this with the manual button too? If the manual works then it sort of points to the power and sensitivity settings of the unit is mounted correctly.
Pending the loaded weight of your camper and how close to full GVWR of the camper, the brakes may not actually lock but should brake real hard.
Lets make sure we are talking the correct controller and verify what you did do.
If your brakes have not been adjusted at each wheel in a while, the lining wear will need more power to achieve the same braking. This is not controller specification but an electric brake thing.
Hope this helps
John
PS. The "time" based controllers on a large camper are the ones that do not work so good. Yours is not in the group, at least yet anyway. But as said, the older inertia technology has to be set up right and then it can give good service. I myself do not have your exact controller but have adjusted others.
