Filled the fresh water tank turned on the pump. Pump starts pumping. Don't stop. No pressure. No leaks that i can see. 2004sightseer. Thanks for your help.
If you have the tank fill valve in the fill position , it connects the cold water lines of the RV to a connection on the top of the water tank, and the pump runs pulling water out of the water pump inlet connection on the bottom of the water tank and putting it right back into the fill port on the top.
Move the valve out of the fill position.
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Randy - Manhattan, Kansas
2015 Vista 27N
2020 Ford Escape Hybrid
I have seen several times that an air lock will form at the pump. To free it , loosen only the "out" attachment to pump and turn it on several seconds til water starts to flow.
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Minnie Winnie 26A, 2018
San Diego, CA
TOAD 2010 Jeep Wrangler
Sheet 3 at about A4 seems to show your pump and some of the valves. Your pump is of a time which is self priming so air should not be a problem as long as it is just a bubble, not totally open so that the pump can never draw a siphon to get started.
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!