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Water pump and reservoir problem with my SWIFT Voyager 540 Xtra Motorhome


Dano

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I have drained the clear water storage tank twice, refilled it fully and full is reflected on the control panel, when I turn on the water pump it runs however I only get small streams of water on any of the taps and according to the control panel the water goes low rapidly thereby sounding the low water alarm. Cannot figure out where the water is draining too and why so rapidly.

I have inspected under the vehicle, ensured drainage valves are closed so am completely perplexed. Appreciate any suggestions what the problem may be. My motorhome is a 2024 model as well

Thank you

Dano

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You are positive you are filling completely? I would confirm that the tank is completely full and not trust your meter at this stage. When I fill mine I have an overflow pipe that empties outside and only then do I know it is full. I would confirm that and then check the taps. Also is your water heater filling? If you are not actually putting much into your tank the heater may well be taking most of it. Also is your pump actually working when you open a tap?

 

Edited by GandJP
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The Owner's Handbook for current Swift Group coachbuilt motorhomes can be found here

https://www.swiftgroup.co.uk/media/wfzhtqes/2024-motorhome-owners-handbook.pdf

It appears that all Voyager models have a conventional fresh-water system comprising a 110litre tank filled through a standard 'hose-in-a-hole' type of filling-point in the vehicle's side bodywork. The water pump seems to be a Flojet pressure-sensitive 'diaphragm' type.

image.jpeg.3161c1909daa0f503f3842be8fb3d6d2.jpeg

A 110litre tank will take quite some time to fill and (as GandJP has said) it SHOULD be obvious when it has been filled as water will begin to pour out of the filling-point.

The Swift Handbook includes trouble-shooting advice for the motorhome's water system, but the symptoms described do not match Dano's problem.

As Dano's Voyager is a 2024 model, the first question that needs to be asked is whether this problem has been present from when Dano acquired the motorhome, or whether the problem has suddenly shown up. (It might also be useful to know how familiar Dano is with motorhomes generally.)

Logically, if a 110litre water tank were genuinely full and only small streams of water were emerging from the water taps, it should take a LONG time before the tank emptied sufficiently to trigger a low-water alarm. A water system will need 'priming' to remove air from within the water hoses and water heater, but - once that has been done - strong streams of water should emerge from all the water outlets. When a pressure-sensitive water pump (like the Flojet) is running, it's usually possible to easily confirm this is happening from the noise this type of pump makes.

Given the contradiction of a large volume of fresh-water disappearing rapidly without any obvious clue of where it is disappearing to (eg. pouring out from underneath the motorhome) I'm doubtful that it is going to be practicable to diagnose the cause remotely.

If the problem has been present from when the Voyager was acquired by Dano, there may be a build fault that will need to be addressed under warranty by a Swift dealership. If the water system worked OK to begin with and the problem has developed recently, the cause might be identifiable if the problem were demonstrated to someone familiar with a Voyager's system. Either way, the first port of call for advice should be the Swift dealership that sold the Voyager to Dano (assuming Dano bought from a Swift dealership, of course!)

(My 2015 Rapido motorhome's water system (that had been working perfectly for a couple of years) suddenly developed really violent vibrations when its SHURflo water pump was running. I was in France when the problem arose and I demonstrated the issue to a Rapido dealership saying that the water-pump must be the prime suspect. He said "Not necessarily, we would need to investigate or we can sell you a new pump (at an unattractive price!)". Back in the UK I confidently replaced the water-pump, but the vibration persisted. Eventually, having confirmed that the pump was not the culprit, I rejigged the Rapido's water system and that cured the problem. But I never pinned down the cause of the vibration...)

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