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post #1 of 20 (permalink) Old 16-05-2019, 08:34 Thread Starter
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Shower problem

We have a problem with the shower in the 2004 Burstner A747 Motorhome.

It was fine when we last used it but now no water is flowing.
I have found an emergency way around this when needed.

If I turn the tap in the bathroom on ever so slightly so I can her the pump priming, this then allows the shower to flo freely.

Any ideas please for a fix?

Frank
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post #2 of 20 (permalink) Old 16-05-2019, 08:37
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It sounds like you have a system whereby the pump is activated by a switch under the tap. You will need to access the underside of the shower control, where there will be a microswitch. Maybe a wire has just become detached, or you may need to fit a new switch.
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post #3 of 20 (permalink) Old 16-05-2019, 08:40
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Do they have a one-way valve to stop it draining back to the tank, does it start flowing if you leave it open? can you hear the pump running when just open the shower tap? I wonder if it's the switched type and the switch has stopped working.
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post #4 of 20 (permalink) Old 16-05-2019, 08:41
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post #5 of 20 (permalink) Old 16-05-2019, 08:55 Thread Starter
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Brilliant, thanks for the very swift replies

That’s what I was thinking about, the micro switch but couldn’t remember what it was called.

Would this be located behind the shower mixer tap and if so, how do I remove this? I don’t want to start disturbing any of the shower panels but needs must.

No, I cannot hear the pump priming when the shower tap is open.

Frank

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post #6 of 20 (permalink) Old 16-05-2019, 09:03
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Another suggestion:

Could there be an air pocket in the system? If there is a leaky pipe somewhere you may have an air pocket. Again, if the system has been drained down after your last outing, by refilling it you may have pockets of air.

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post #7 of 20 (permalink) Old 16-05-2019, 09:06
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Originally Posted by fdhadi View Post
We have a problem with the shower in the 2004 Burstner A747 Motorhome.

It was fine when we last used it but now no water is flowing.
I have found an emergency way around this when needed.

If I turn the tap in the bathroom on ever so slightly so I can her the pump priming, this then allows the shower to flo freely.

Any ideas please for a fix?
Have you a photo of the mixer?
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post #8 of 20 (permalink) Old 16-05-2019, 10:23 Thread Starter
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The Motorhome is back in storage but I’ll go and bring it back this weekend.
I will then totally drain it and refill and bleed accordingly.

If that doesn’t work I will post a picture on here of the mixer.

Thank you for all the replies, it just shows what a brilliant site MHF Still Is 👍

Frank
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post #9 of 20 (permalink) Old 16-05-2019, 10:27
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I would have thought the van converter would have provided an access panel in case of plumbing leaks.

If the mixer needed replacing for some reason, I can't think you would be expected to do major dismantling.

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post #10 of 20 (permalink) Old 16-05-2019, 11:54
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No, I cannot hear the pump priming when the shower tap is open. Presumably the switch isn't working then. An airlock wouldn't affect the electrical circuit!!

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