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Venus Lunar 550/4 Truma Water Pump , kitchen and bathroom sink ....

Hi all
Prepping for the summer trip and discovered an issue. I have a 2017 Venus Lunar 550/4 caravan, and I’m having an issue with the water system. The taps in both the kitchen and bathroom have stopped working completely.

So far, I’ve replaced the external Truma submersible pump, but there’s still no change—no water flow at all. I also found that the 10A fuse had blown, so I replaced that as well.

At the moment, I’m not hearing any noise from the pump—no spinning or pressure sounds—so it seems like it’s not getting any power.

Has anyone come across this before, or have any suggestions on what I should check next?

Thanks in advance.
 
Shortly after I had my van I had a similar problem. As a pressure system the pump only operates when water flows causing the pressure to drop and so activate the pump. So now a job I undertake regularly, and especially after winter lay-up is to unscrew the tap spout and clear out a sometimes amazing amount of debris blocking the filters. Could this be your issue?
 

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