Loud noise and vibration in my motorhome after having a shower

[sweet caroline]

Hi learned guys out there !

After having a shower today, in my motorhome, I came out of the bathroom, to this horrendous noise, which I thought was a plane outside or even a revvingup motorbike, in my van ! I opened the door, as I am in a shipping yard in Swansea Marina, thinking it might be a speed boat, it was so noisy, When I realised it was MY MH that was not only making this loud noise, but it was shaking my van too as well. I run out of my van, actually thinking it was about to blow up !
Scary or what ? I switched EVERYTHING off , and the noise still carried on, so I just felt Worried and Bewildered what on earth to do? This lasted about 20 minutes after my shower, with no pump on, nothing, it just carried on and on, until it stopped. Now I am so worried to use my shower again in the morning, as did not want this to happen again. The screen shows 50% of water in the system, so it DID HAVE WATER in the TANK< as some people on my Bentley Forum enquired with, so any help on this would help.
Also couldn't find the Pump in the van, to see if this was the culprit making the noise either > It is a Bentley Cobbalt, by the way !

So sorry about the long message, but as I am away for nearly 2 weeks in her, I really want to be reassured that this van wont Blow Up in anyway ? mmmmmm Thanks guys for helping me out once again !

 

[monzer]

Wow! That's a new one for me.

First thought is the pump but that's some serious vibration to cause what you have stated. Where is your boiler/ water heater situated? Did it seem like this event was originating from there?

Hopefully someone will be along soon with some better diagnostic advice.

 

[DavidG58]

Are we still waiting for a punchline ?

If it’s genuine , apologies but this is off the scale of possibilities

 

[Lenny HB]

Pressure pumps like Shureflo can be very noisy at times but that sounds extrem.
It could be an air lock, try turning all the taps on and running them for a bit that should clear an air lock.

 

[meanders]

Try running the shower a while on cold. Does it do it. Then again on hot. I also suspect the boiler but why I have no idea unless it was air in the system. Pump is the obvious culprit. Ours is in the false floor almost underneath the shower and is a PITA to get to through a small locker door. If something moves in the locker it can touch the pump and amplify the sound. However, turning the 12v off should have stopped it immediately.

Do you have anyone with you? Having two people listening for the cause will improve the odds of finding it.

^{_{Subscribers  do not see these advertisements}}

 

[1967bowesj]

Hi learned guys out there !

After having a shower today, in my motorhome, I came out of the bathroom, to this horrendous noise, which I thought was a plane outside or even a revvingup motorbike, in my van ! I opened the door, as I am in a shipping yard in Swansea Marina, thinking it might be a speed boat, it was so noisy, When I realised it was MY MH that was not only making this loud noise, but it was shaking my van too as well. I run out of my van, actually thinking it was about to blow up !
Scary or what ? I switched EVERYTHING off , and the noise still carried on, so I just felt Worried and Bewildered what on earth to do? This lasted about 20 minutes after my shower, with no pump on, nothing, it just carried on and on, until it stopped. Now I am so worried to use my shower again in the morning, as did not want this to happen again. The screen shows 50% of water in the system, so it DID HAVE WATER in the TANK< as some people on my Bentley Forum enquired with, so any help on this would help.
Also couldn't find the Pump in the van, to see if this was the culprit making the noise either > It is a Bentley Cobbalt, by the way !

So sorry about the long message, but as I am away for nearly 2 weeks in her, I really want to be reassured that this van wont Blow Up in anyway ? mmmmmm Thanks guys for helping me out once again !

I’d expect you would get a pretty good advice from THE Bentley Forum, there won’t be many owners on here.

Does the noise start again if you use any tap.
You say the pump was off so noise must have originated from somewhere else, where did it sound like it came from

 

[Thornebt]

If it happens again maybe you could do a video of the vibration/ noise?

 

[Brains]

We need to all see the photos of you running straight outside from the shower!

An airlock can make some fairly interesting sounds, which can make a brick built house vibrate.

I'd be inclined to fill the water tank to full.
The run the cold water, if it splutters, it's an airlock, put your finger over the tap and see if you can get enough pressure to take out the airlock.
Then ensure the hot water boiler is also full, by running the hot tap for a while
if you get air to start with followed by spluttering, that would imply the hot water tank is empty, keep going until it runs normally.
Then put the hot water on for an hour.

And then run the shower (with clothes on) and see what happens.

 

[donkey]

Do you have Truma 4E or 6E blown air heating? If so, the blown air can sound like a jet engine under certain circumstances. It is quite normal and stops as soon as the unit cools. It normally happens when the water heating has been on for some time, then the space heating comes on, but the unit is too hot, so the blower goes into maximum mode to cool things down.

Geoff

 

[BouncyBoatFolk]

Yes, we've had that and it can be very disconcerting. Best described as a self preservation by the boiler.
Mostly it occurred when using the" boost " function,from memory.
Mike.

^{_{Subscribers  do not see these advertisements}}

 

[autorouter]

Do you have Truma 4E or 6E blown air heating? If so, the blown air can sound like a jet engine under certain circumstances. It is quite normal and stops as soon as the unit cools. It normally happens when the water heating has been on for some time, then the space heating comes on, but the unit is too hot, so the blower goes into maximum mode to cool things down.

Another reason it goes into boost mode is if the motorhome inside temperature is much lower than the set temperature on the thermostat. For example if the motorhome temperature is12°C and the thermostat is set to 20°C. Even if you turn off the heating, the fan will still carry on blowing until the controller thinks it has cooled down enough.

 

[sweet caroline]

Hi Guys !

My deepest apologies for not coming back sooner, but Ihave been happily driving around Wales. in Renee!
I NEVER did find out about this disconcerting noise and vibrations sadly, and being on my own, it was difficult to video this, as I was running out of the Van in a onesie, and totally SHOCKED by it all.

However, what it did do, is turn off the boiler completely, so the next day I went to put the heater and water on, and NOTHING HAPPENED. My Uncle, was on hand, and although knew nothing about MH, he was a lorry mechanic, and looked for the RESET BUTTON (well that is NOT flipping easy either, as there is NO RED BUTTON , instructions stated, but we had to put a small screw driver into a hole,and that started the boiler and heater to start once again!

I' have moved from Swansea, and now in the Brecon Beacons, so I suspected, whatever happened to the Pump Boiler, threw everything into disarray,and locked me out ! So since then I have had 2 showers, and although the Boiler/Pump is now noisy, it has not made that dreadful noise, or vibrations in the van.

With your advise from above Guys, on the site here, I filled up,and immediately turned all the taps on and the shower room too, were turned on for a minute or so, so that air, that could have been locked into the system (Guess here ),it might dislodge any air bubbles.

So far so good, and although still scarred by this, n very worried still about having a shower in the van, I am STILL going to do this, as the reason I bought this BENTLEY, is due to the end Ensuite, I don't want it to put me off.

Once Again, EVERYONE, your are all so great on this site, and I appreciate every single piece of advise you give me,and I just HOPE, that these issues are not annoying to you all hahah

Kind Regards
Caroline

 

[Grummyb]

The real question everyone wants to ask is what was the onesie you were wearing when you went running out the van my money is on a tiger 1

 

[Wildbill]

Hi Guys !

My deepest apologies for not coming back sooner, but Ihave been happily driving around Wales. in Renee!
I NEVER did find out about this disconcerting noise and vibrations sadly, and being on my own, it was difficult to video this, as I was running out of the Van in a onesie, and totally SHOCKED by it all.

However, what it did do, is turn off the boiler completely, so the next day I went to put the heater and water on, and NOTHING HAPPENED. My Uncle, was on hand, and although knew nothing about MH, he was a lorry mechanic, and looked for the RESET BUTTON (well that is NOT flipping easy either, as there is NO RED BUTTON , instructions stated, but we had to put a small screw driver into a hole,and that started the boiler and heater to start once again!

I' have moved from Swansea, and now in the Brecon Beacons, so I suspected, whatever happened to the Pump Boiler, threw everything into disarray,and locked me out ! So since then I have had 2 showers, and although the Boiler/Pump is now noisy, it has not made that dreadful noise, or vibrations in the van.

With your advise from above Guys, on the site here, I filled up,and immediately turned all the taps on and the shower room too, were turned on for a minute or so, so that air, that could have been locked into the system (Guess here ),it might dislodge any air bubbles.

So far so good, and although still scarred by this, n very worried still about having a shower in the van, I am STILL going to do this, as the reason I bought this BENTLEY, is due to the end Ensuite, I don't want it to put me off.

Once Again, EVERYONE, your are all so great on this site, and I appreciate every single piece of advise you give me,and I just HOPE, that these issues are not annoying to you all hahah

Kind Regards
Caroline

Let me assure you van won’t explode in to a million bits.
Sume times an air lock can cause things like that.
Fill you tank to its maximum capacity run you showers and taps full open to purge the air out off the system
That should clear it
And if it was a wimpy build there’s no hope
But I am sure it will clear with a bit of running of taps.
Worst case you pum is on it way out
WB