Forum Discussion

norrisboat's avatar
norrisboat
Explorer
May 24, 2021

Water pump not pumping water

Hi everyone,

I replaced my old water pump because it leaked for my pop up camper. After replacing the old with a new one, the new one would not pump water when I turn it on. It spits out water out of the faucet and the water heater gurgles. Sounds like the water heater is blowing bubbles. I have valves to bypass the water heater and that doesn't create a different result. I thought I might have gotten a bad water pump so I ordered another new one and replaced it with the 2nd new one. 2nd new pump had same result.

I have no water leaks anywhere in the line that I can find.

My original pump was a Shurflo 2088-422-144(12VDC 7 Amps Max) and the new one is 1088-554-144(12VDC 5 AMPS Max)

Any ideas what to do to get it to pump water? Thank you.

15 Replies

  • jdc1's avatar
    jdc1
    Explorer II
    Let's start with why you replaced the first pump. What was it doing? The same thing? Then you have a vacuum leak....you are sucking air somewhere like CAtraveler says.
  • enblethen wrote:
    Reversed wiring?


    That model is a diaphragm pump so reverse polarity would not effect the operation.
  • Sounds like an empty tank or vacuum leak. Connect a hose to the pump input and a bucket of water and see what happens.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,270 PostsLatest Activity: Jun 16, 2025