He has Atwood since he states electric and that is what Tiffin installed.
1. The Controller on your system can and is programmed to dump the Air Bags when Auto level is activated. If your air bags fail to dump, then you may have a fault or the controller needs to be activated. Here is a link to your manual that shows how to activate the air bag dump feature. Page 3--"to set air dump"
https://lci-support-doc.s3.amazonaws.com......../levelegs_system_installation_guide_.pdf
2. The are NO parts available any more for your system. Atwood dropped the system 10 years ago and very few parts are available. NO controllers and NO jacks unless you get lucky.
3. THERE IS NO PROBLEM MENTIONING THE NAME OF THE JACKS OR ANY NAME OF PARTS OR SYSTEMS ON A RV ON THESE FORUMS.
4. Most people end up removing the Atwoods and installing the HWH complete Hydraulic jack systems on Tiffins with the Atwood jacks. Doug
https://lci-support-doc.s3.amazonaws.com/manuals/atwood/leveling/levelegs_system_installation_guide_...