Trying to winterize my 2020 Solitude 2930RL. It has the nautilus P4 system. I put switches to setting as shown on the system for winterize mode, but when I put short hose (3') into jug of RV antifreeze and turn on pump, less than a cup of antifreeze gets pulled into the system, then it stops sucking the antifreeze but the pump keeps running. If I turn on any faucets, it just sputters. All other faucets are off, including outside showers and low point drains. I raised the antifreeze jug up to make it easier to prime, but no change. I went back to dry camping mode and everything works proper. Any Ideas as what to look for?
Thanks
Thanks
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