Hymer 524 electrics problem (1 Viewer)

[Hils and Glenns]

Hi This is my first post so please be kind )
We have a Hymer B524. My husband has just changed all the lights for LEDs. But he had to get a new connection for the small strip light over the drop down bed. Now the light over the bed, the fan and light over the hob, the digital, aerial in the wardrobe and the wardrobe light have all stopped working. We haven't got a manual that helps with electrics. We have tried to find a fuse that could be the problem but all the fuses we can find (under the seat and in an outside locker) look ok. Can anyone help? I'm a bit desperate as we are due to go away in it tomorrow. Any help really appreciated

 

[deleted-member02]

The Electroblock is the most likely place to find a blown fuse.
Is the van an A Class ?

If so, its located in the first wooden compartment under the passenger side window (if Lhd)
The compartment floor should have a little finger hole in it to aid removal. Lift it and
the electroblock should be visible !

A quick Google should reveal a pdf manual for your van.

Good luck and

 

[TheBig1]

dont rely on just looking at fuses, test them with a meter

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[Hils and Glenns]

Hi Both
Thanks for your speedy replies. Hubby has rushed out to test fuses with a metre. The Electroblock is in an outside locker and those are the fuses we've looked at. It being in German we aren't sure which fuse does what. Are there anymore anywhere? We have got a manual but it doesn't have wiring or fuses in it.

 

[bjandlin]

Hello, what year is your van ? not seen an Electroblok in an outside locker on an A class, a large blue affair with fuses on the top side.are you sure ?
Barrie.

 

[Hils and Glenns]

It looks a bit like this http://hymerinfo.com/index.php/technical-stuff/4-electroblok and its in an outside locker next to the leisure batteries. The van is a 2008 B524L. Our manual says the fuses are under the seat but all that's under the seat are three 15amp and one 5amp. My husband is starting to think its not a fuse. But it would be good to know where the fuses are.

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[Hils and Glenns]

Would it be normal for the strip lights, the overhob fan the digital aerial booster and the wardrobe light to be connected to the same fuse?

 

[JeanLuc]

Most of the simple 12V services are on one of two circuits (excluding special things like the TV, pump, step etc which have dedicated circuits and fuses). All circuits should be fused at the Elektroblock (EBL) unless a dealer or DIY merchant has fitted additional fuses.
The two main circuits referred to above are marked "Kreis 1" and "Kreis 2" on the front of the EBL. Normally they are fused at 10 amps each.
So yes, I am not surprised that several things have failed together if one of the circuit fuses has failed. More importantly, why has it failed? Have you switched fluorescent tube lights for LEDs (as in over the drop-down bed)? If so, did you remove and isolate the existing circuit inside the fitting and run new leads to the LED? The fluorescent tubes work on 230V AC and each fitting contains a small inverter to convert the power from 12V DC. This has to be bypassed when fitting LEDs. I have decided not to bother and use the tubes. I have only switched to LEDs where there are 12V halogen bulbs.

 

[Hils and Glenns]

Thanks JeanLuc for your reply. My husband was about to change the strip lights but it looked too complicated. So he just put them back together and then not only did they not work, but the fan, aerial receiver and the wardrobe light (which hasn't been changed to LED) didn't work. Any other thoughts would be appreciated.

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[mitzimad]

i know nothing of your van but just a reminder that leds only work when connected the correct way round and dont pass current in reverse

 

[JeanLuc]

Have you checked the two fuses on the front of the EBL? You will need to check them both to determine which circuit is causing the problem. For example, in the case of my B630, the wardrobe and kitchen lights are on circuit (Kreis) 1 but the front bed light is on circuit 2. You will have to check yours by trial and error. If you have the complete set of documentation for your Hymer, there should be a circuit diagram with it. If in German, it is probably labeled "Kabelbaum: Stromlaufplan = 12V"

p.s. I assume all the other internal 12V items are working? (excluding the step and doorway light which are not controlled by the main 12V on/off switch.

p.p.s. Note to selves for future reference: don't try and make any changes to the electric or gas systems just before you are due to go away! Ideally try out anything new at least two weeks before so you can put right anything you do wrong. And don't do it in August anyway as Hymer shuts down for a factory holiday (Schaudt - maker of EBL) may do also, so may be really stuck if parts are needed from Germany.

 

[JeanLuc]

Hils - you need to join up and pay your subscription to be able to continue the thread - free posts have now expired. I promise it will be worth it - there is loads of good information here and plenty of people to help.

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[Hils and Glenns]

Hi JeanLuc I have subscribed. Definitely worth it because my husband decided to change both the kreis 1 and 2 fuses. And it worked !!! Just wanted to thank everyone very much. £10 well spent. We are both so grateful.

 

[TheBig1]

at the electrobloc use the meter to confirm you have an output on each circuit.

 

[Hils and Glenns]

Will do thanks.

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