There is NO button to inflate the air bags on a Berkshire. It is done automatically by the retraction of the jacks. HOWEVER, you must have the engine running when you retract the jacks or there won't be adequate air to inflate the suspension. Ask me how I know this!!!!! Also, the suspension deflates automatically when you bring the jacks down!!
Kent & Peggy Savage
2008 Forest River Berkshire 390QS
2008 Chevy Colorado 4X4 Crew Cab Toad
Callie - Fur Kid