Freshwater pump wont prime

Shortimer · 09-19-2021, 07:45 AM

Hi all.

I have a 2021 243BHSWE that will not build water pressure. The freshwater tank is 1/4 full, i just added water to the tank last night. The pump will either run normally and shutoff when when pressure is built, but the pressure is very low. Or, the pump will run continuously and never build enough pressure and wont shut off unless I shut it off. I'm hoping its just a loose suction side fitting on the pump and want to check it out, but im not sure where the pump is. Sounds like its either behind the water connection panel, or in the pass through behind a curved panel by the connections. Has anyone had experience with this problem? If so, what was the fix?

We are leaving for our 1st dry camp trip in a week and our local dealer is jammed so I dont think they could get it back in time.

Thanks in advance for the help!

**chuckster57** · 09-19-2021, 08:18 AM

Make sure the fresh tank is FULL, then make sure all the faucets are turned OFF. Turn on the faucet FURTHEST away from the water pump and turn the pump on. If you get air and sputtering leave it on until steady stream, Turn it off and go to the next one. Make sure the WH is in normal mode and filled by running a HOT water faucet.

Shortimer · 09-19-2021, 08:21 AM

I found the pump and checked all of the connections, they are all tight. In looking at the water panel I see "Water heater bypass" and "Winterize" valves. What is the function and correct valve position of the water heater bypass when camping? Same question for the Winterize?
I have a photo of the current valve position but cant seem to figure out how to add it lol.

**chuckster57** · 09-19-2021, 08:24 AM

Bypass and Winterize should be in the OFF position. SEE PMs

Shortimer · 09-19-2021, 09:27 AM

So... the pump inlet fitting is loose in the fitting cavity. The fitting is fully engaged into the cavity, the blue lock tab is locked, and the O ring is good. With help from another post on this forum I coated the inlet fitting O ring with silicone grease and wallah problem fixed. Temporarily. I ordered a new fitting on Amazon along with a strainer just to prevent future problems.

**chuckster57** · 09-19-2021, 10:03 AM

I would consider replacing the pump with a Shure Flo with threaded fittings.

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