My external water pump won’t turn off

Markchubbystokes
Markchubbystokes Forum Participant Posts: 3
edited October 2019 in Caravans #1

hi just for reference I have a lunar clubman Es 2009 ....my question is when I use taps shower ect my external pump in aqua roll will not turn off so have to use the on off pump switch inside and the pump is new as thought I’d try that first ....please help

Comments

  • Cornersteady
    Cornersteady Club Member Posts: 14,428 ✭✭✭
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    edited October 2019 #2

    could be the pressure stitch/valve needs adjusting? Try turning it one way or the other to see if that helps.

  • Simon100
    Simon100 Club Member Posts: 666
    500 Comments 100 Likes
    edited October 2019 #3

    Do you have a white pressure valve next to the water inlet under the front bench? It should have a small knurled circular 'tap'on top.

    With the tap off, and water running, turn clockwise until the water stops running. If that does not work try anti clockwise.

    This has worked for me in the past hope it helps solve your problem.

  • EalingBob
    EalingBob Forum Participant Posts: 32
    edited October 2019 #4

    This happened to me. I fiddled with the pressure switch for ages but nothing seemed to work. In the end I found that there was a small split in the pipe between the pump and the van which was below the level of water in the Aquaroll. Hence lack of pressure and very hard to find!

    !

  • Rufs
    Rufs Club Member Posts: 4,073 ✭✭✭✭✭
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    edited October 2019 #5

    ours is a Truma pressure switch which has a very tiny grub screw on the front which you have to turn anti clockwise until the outside pump stops. Normally once set it just works. The only problem i have with this arrangement is the pressure switch being attached to the outside wall under the front offside seating which makes it very difficult to access, and the grub screw is very tiny and on the vertical front face of the switch, and replacement knees do not like to be knelt on, nightmare. Check all pipes we had a hair line crack in the food grade hose coming out of the water heater which was squirting water into the underside of the front seat cushion so not easy to spot,  if i had spotted this earlier would not have had to buy new pump, and replacing 6 inches of pipe with push on connectors was very easy and would have saved a lot of hassle.

  • audiorob
    audiorob Forum Participant Posts: 4
    edited October 2019 #6

    https://www.whalepumps.com/rv/siteFiles/resources/docs/resource-library/WhaleAdjustingyourpressureswitchb.pdf

     

    This is the printable page that Whale provide with detail description for adjusting the pressure valve. Hope this helps