A couple years back I had a problem with my HWH air leveling and emailed them and they got right back to me. I think the guy's name was Joe Portelli.
He helped me trouble shoot my problem which I created in the first place. I wound up shipping the control box to him and they repaired it for very little cost. I also ordered a new touch pad from them.
I hope you get your problem resolved.
Dennis & Marcie & Hook The Jack Russell, 2001 HR Imperial 38wds 350 Cummins, 07 Chevy Trailblazer/Blue Ox/Ready Brake, 04 Dodge 3500 Cummins,