It does take a few mins for the bags to air up, you can try to fast idle the RV to see if that helps, some times increasing the rpm at idle will allow the compressor to run a little faster. Also look at your air gage, if it is not moving pump the brake and allow the compressor to come on. This will get the compressor going allow the bags to fill up. [url=http://www.gazegroup.org/modules/saclongchamppliage]Pliage Longchamps[/url]