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Hi Kenny,07891 531033 Logan Vehicle services based in Lanark but is mobile, services vans and fits solar,security systems, b2b, entertainment systems to campers and caravans. Used him for years would let anyone else near our van.
Look him up on Facebook to see the jobs he has done if your on it.
Highly recommended.
Cheers
Kenny.
Hi,Post the problem and let the Funster brain offer solutions for you?
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No problem...Hi Kenny,
Thanks for that recommendation!
Jim
Hi Kayak Kid! I'm up in Scotland too. You don't happen to be the guy that manufactured a rear rack to carry a couple of kayaks standing on end? If so, we may have chatted a few years ago on the Chausson Owners group on Facebook. I'm in Fife. I'm about to fit a couple of Victron units to my 2017 Chausson 630. I was wondering if you could share what info you have about fitting the B2B please? Its an Orion unit I have. I assume you will be trying to bypass the split charger of the CBE unit and ensure the fridge still runs on 12V when underway? I also have a Victron MPPT unit to fit...but I think I'm going to take the cables from the MPPT directly to my Fogstar Drift Underseat 230Ah battery and not through the CBE unit. Anything you can offer would be great. Thanks in advance!Anyone know of someone in Central Belt of Scotland who can resolve some issues with my recently installed Victron B2B in my Chausson motorhome? I have been offered good advice what to do but my limited electrical ability is making me nervous about making another cock up!![]()
Hi,Hi Kayak Kid! This is most helpful! Are you on a Ford or Fiat base? I did read there was an issue on the Ford base with a bad earth causing the fridge not to work on 12V. Have you heard this? Maybe that may help you? I'm on a Fiat base but the fridge not running on 12V is still a concern. Did you remove the resistor on the CBE unit? Is it the DS300? (some PCB's have a switch I've read) This resistor as you may already know is to isolate the split charging function. Without removing that resistor, the leisure and vehicle are connected when you switch on the ignition and D+ is sensed by the CBE unit. This is not good at all for either battery chemistry. I was wondering if there was space behind the Fogstar battery for the B2B. Thanks for the info!! It would be handy there. I also looked at fitting that unit under the passenger side bench seat, where the boiler and original mains charger is in my van. I note your positioning to allow the B2B to cool. I 3D printed a fan enclosure to take three (or four) 30mm fans. https://www.printables.com/model/509569-victron-orion-dcdc-charger-fan-mount-1212-30 . I plan to add a temperature module, so the fans will switch on and off when certain temperatures are sensed. Again I printed an exclosure for this module. Both fans and temp module are pennies on AliExpress. I can 3D print these enclosures for you if you think you need them. I bought the Fogstar mains charger to cover the mains charging of the lithium. I also bought a Victron mains charger to use on the vehicle battery. The reason I spent so much on a battery charger is that the Victron charger will switch its self back on if there's a power cut. If you don't keep the battery above 11V on a Fiat the airbag module will "fry" its self. I really think the EPROM loses its data. Some say you can reflash them, I had mine reflashed and it lasted a few weeks and cost me Ā£100. On my way to Portugal last December, I had to go onto a Fiat garage in Portsmouth and get a new module fitted or I wouldn't have airbags working in Europe. The garage told me that in their experience, their customers who flashed the units had to end up fitting new units after a few weeks. SO...I wouldn't recommend anyone getting the module reflashed...especially from the most popular reflashing company in Liverpool. That company are Charlatans! I emailed them to ask for advice, and they attacked me from the get-go. I read reviews of their company online and this is the way they deal with customers that have issues with their work or lack thereof. So anyway, our systems are quite similar. Your post is a really fantastic resource for me. Someone else with a Chausson. I'm on my second Chausson. I had a 610 before this 630. Thanks!
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Oooh Loving it!!Hi,
Thanks for getting back to me.
I am a 2020 Fiat based unit.
Ah! OK...interesting...No, I havenāt removed the resistor in the CBE unit as it does not have the resistor or a switch. I had to replace my CBE unit last year after it fried. The original unit had the resistor as I still have it. The replacement from Chausson is a different unit, but they said it was compatible.
I don't at this point understand it either but would like to know as no doubt you are. I would have thought some diodes could solve that issue. Look forward to finding out though.As I said in my last post, I have been advised to remove the B1 relay 50A fuse (not yet done) to disable the split charge subject to the point I made about the Victron B2B potential to drain the engine battery when on hook up. That bit is beyond me as I donāt understand how that can happen.
Keep me in the loop!However regarding my 12v on the fridge not working, having spoken to Knowepark Motorhomes, Grant the Service Manager wonders if indeed the new unit may be the problem for my 12v to the fridge given that the fuses are ok. I have booked it in for 31 May to have a look. I have sent him the number of both of the CBE distribution unit to double check with Chausson.
Good stuff...the fan housing only adds about 10mm to the height of the B2B, but if you don't have the 10mm...its too much.Regarding your kind offer of a fan housing for the B2B, I doubt very much if there is enough room to fit fans at the back of the passenger seat behind the Lithium and B2B. I am however hopeful that there will be sufficient airflow through the seat to keep it cool enough!![]()
Rather than bore everyone here with the details, I can give you a copy of the relevant screenshots I made of the advice I got from (who seems very knowledgable) on the FB Chausson Owners Group if you cannot access it yourself under my postings (Jim Breen). Just send me a pm!
Yes, I removed one of the two split charge relays located under the floor between the two front seats. Canāt remember now which one but I can check tomorrow if helpful.Kayak Kid I'm starting the process of replacing my Chausson 530 lead acid leisure battery with lithium and am looking to disable the split charge relay.
I know this is an old thread but I wonder if you ever solved the issue of disabling the split charge by removing the B1 relay 50a fuse?
Many thanks.
Many thanks, that would be great if it's not too much trouble.Yes, I removed one of the two split charge relays located under the floor between the two front seats. Canāt remember now which one but I can check tomorrow if helpful.
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Thanks for that. Unfortunately the removal of the 50A fuse is not the issue with the fridge as even when in place, the 12v on the fridge will not work. I spent a full day at my local Chausson dealer and their auto electrician, and along with various emails direct from the Chausson techy guys in France - we were unable to source the problem on the 12v feed to the fridge. We got to a point where the diagnosis/ fault finding became so time consuming that the best option now is running a new 12v supply (when he engine is running) to the fridge. I went off for 6 weeks on hols and ran the fridge when travelling on gas until I can revisit the issue. The split charge is immobilised successfully by the removal of the 50A fuse at the relay.I suspect removing the 50A fuse has caused your fridge to stop working on 12v.
The fridge should only work when the engine is running and the ideal place to pick up a supply which is live only when the engine is running... is at the split charge relay.
I have no knowledge of your system but you could try replacing the fuse, it will stop the B2B working but ignore that for the moment and see if the fridge works. If it does you know where to look.
The mains charger could only trigger the B2B if it was also charging the cab battery, in which case it wouldn't drain your cab battery.The advice I got, also said that if only using the Victron built in engine run function to start the B2B - to check that the mains charger doesnāt trigger it when parked up as the B2B would then drain your cab battery.
The attached photo shows one of the 50A fuses removed at the B1 relay on the right of the photo - to disconnect the split charge! This was identified by the auto electrician in my local Chausson dealer.Many thanks, that would be great if it's not too much trouble.
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Thanks for the photo I really appreciate your assistance, it makes my life so much easier as this was the bit I was struggling with and luckily my 'black box' is in the same location.The attached photo shows one of the 50A fuses removed at the B1 relay on the right of the photo - to disconnect the split charge! This was identified by the auto electrician in my local Chausson dealer.
In my Chausson 711 This box is situated between the front seats under a plastic floor cover so was easy to access.
I hope this is helpful.
Jim
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