Roof Space Noise Bessacarr E480

[Sonoftynedale]

Please can anyone help with this?

Our 2010 Bessacarr E480 motorhome has started making the most peculiar of noises from the roof space just above the Sargent Panel.

Happens most days from about 5pm and goes on for hours. If you touch the roof, you can feel the vibrations the noise if making.





As you can see from one of the videos, with the Sargent panel shutdown, solar panels disconnected and no EHU on the van, we STILL get the noise.
How is it getting power!!!!

Are there any electrical moving parts located within roof space of vans like hours?

Any comments/advice would be gratefully received.

Waiting to hear from Sargent, supplying dealer can't see us until 19th May Many thanks. Martin

 

[mitzimad]

nothing on the roof getting blown around cables to the solar perhaps

 

[Sonoftynedale]

Thanks mitzimad, nothing blowing around. The noise is happening now parked up on the driveway. Cheers

 

[Figaro]

Can`t help with your question but

 

[VXman]

ghosts!

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[Gellyneck]

I had a similar noise from the roof and it was driving us (well me) crazy and eventually found it was a factory fitted label to the cables from the solar panel coming loose and "buzzing" in the wind. They were under the panel so not obvious when looking on the roof!

 

[GeoffnDee]

Tracker / alarm ?

 

[Itsmcb]

Sounds a bit like a relay buzzing. Have you tried disconnecting the leisure battery whilst it's doing it?

 

[Sonoftynedale]

Thanks for that Itsmcb. Someone did mentioned it could be a relay switching.

I've just tried disconnecting the leisure battery as suggested and removing the electric mains hook up but the noise still persists.

Where is it getting its power from??? Could it be the vehicle battery?

Many thanks. Martin

 

[Richard n Ann]

Sounds like it's got err.. like a droning rhythm to it like something turning?

Some air con condensate pumps sound like that, but they're electric... More thought required

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[Richard n Ann]

Don't suppose you've got a solar panel mover trying to move the panel or anything connected directly to the solar panel?

 

[Sonoftynedale]

Solar panels are fixed Richard n Ann, nothings connected. Thanks, Martin

 

[Richard n Ann]

Next thing I'd do is disconnect the engine battery then just to eliminate that

 

[Kirsten]

Is it a bee or wasps nest?

 

[Richard n Ann]

On your other you tube video it sounds like a tracker transmitting on the cellular network. You know like when they interfere with a radio. Tick-tick-tick - buzzzzzzz

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[wolfie2]

However implausible it may seem that sounds like wings beating on the panelling to me. But I have no explanation as to why it starts around 5pm each day!!! How long ago did it start and has it been every evening?

PS just seen Kirsten's post

 

[Sonoftynedale]

Thanks for all the comments.

The sound is definitely electrical and does change rhythm. Its definitely not bees or wasps, zero evidence of any flight activity!

From your comments I'm thinking its something to do with a relay charging the batteries. Batteries are both fully charged having been on hook up all winter, maybe using the van this weekend will change the situation.

Going to try today with the Charger button in the off position for a change.

Any other advice would be gratefully received. Will try disconnecting the vehicle battery this evening if it starts up again.

Thanks again for all the comments. Regards, Martin

 

[GeoffnDee]

I think you will find that Swift used to factory fit a system called Tracker retrieve to Bessacarr Motorhomes and they had their own back up battery ,( I came across mine by accident ,when I had one ) Sargent electrical should be able to advise about this when they get back to you and be able to say if a low or old back up battery can cause a tracker to make a noise. (if yours had one, as mine did)