[Festus2]

Something else you might do is to get a whole bunch of foam pipe wrap and apply it to as many exposed water lines as you can see - in the underbelly, in exterior storage compartments and inside the unit itself. Get the thickest wrap you can find.

A hair dryer or heat gun set on low might work for some of those lines/pipes that are frozen. Just be careful when using the heat gun that you don't end up melting one of the lines!