I'm having similar issue with my dump valve maybe sticking and the rabbit travel button not working like normal to air up, and in drive taking long time to air up the bags. Once full the release is working. Mine is 2002 Itasca Horizon 34HD. Thanks Jeff
2002 Itasca Horizon 34HD FL XC Chassis/CAT 3126 330HP, 2005 Explorer, Falcon II bar, ReadyBreak, BlueOx.
More Toads: 6x12 enclosed, KTM250XC, Regal LSR 2100