Water tank is full so I saw mention of a cut-off valve between the pump and the fresh water tank. Have you looked for this yet to make sure it's open and/or you may have a valve that goes to a winterizing/antifreeze bottle. i have this on my 2013. This would need to be set for closed to the bottle and opened to the FW tank.
2007 Shamrock F19 hybrid - 2010 (22 nights), 2011 (24 nights), 2012 (11 nights)
2013 Surveyor Select 235RKS - 2012 (6 nights), 2013 (32 nights), 2014 (26 nights), 2015 (37 nights), 2016 (14 nights)