No 240v and RCD not tripping

Aug 30, 2025
5
5
15
Hi I overloaded the circuit in the caravan by having too many appliances on while on a camp site. The post tripped out before the caravan but now I don’t have 240v. I’ve checked all the MCBs and fuses, and the the 2 inline fuses I can see. The RCD is not tripping out when pressing the test button which I’m told is a sign of no 240v. I’m now back home and still having the same issue. Any ideas what the issue could be and what to check. I do have a volt meter. Caravan is Elddis Affinity 574 2014. First time posting, thanks in advance for any advice.
 
Nov 6, 2005
8,964
3,415
30,935
Hi I overloaded the circuit in the caravan by having too many appliances on while on a camp site. The post tripped out before the caravan but now I don’t have 240v. I’ve checked all the MCBs and fuses, and the the 2 inline fuses I can see. The RCD is not tripping out when pressing the test button which I’m told is a sign of no 240v. I’m now back home and still having the same issue. Any ideas what the issue could be and what to check. I do have a volt meter. Caravan is Elddis Affinity 574 2014. First time posting, thanks in advance for any advice.
Some MCB/RCDs you need to press the switch fully to the off position before moving it back to the on position.
 
Mar 26, 2016
42
29
18,535
If all thr circuit breakers and fuses are OK and there is power to the socket you are plugging it in to then the next thing to check is the hook-up cable.
 
  • Like
Reactions: Mr Grumpy
Jun 6, 2006
938
197
18,935
Have you tried the test button on the bollard?

Also not all RCD’s drop when they have tripped, some stay up, so good practice is drop it down and the re engage it
 
Apr 23, 2024
403
326
935
I see caravans with damaged mains connections , both the cable and the socket/wiring in the caravan , even seen melted connectors and cabling . To the OP first start with the socket in the caravan , looking from inside look at the cable close to the socket , is there any darkening of the cable close to the socket? , is the cable intact , give it a tug to check for loose connections ( with no power connected) , then on the outside look at the socket pins are they clean and secure ( when the socket overheats the plastic melts and the pins push back) If all looks OK with a multimeter set to ohms and with all the MCBs and RCD on and say the water heater or space heater set to electric and on, test the resistance between live and neutral pins(the two smaller pins of the three) if you get a value of less than 100k then the cables are intact if you get a reading of above 1 Mohm then there is a fault internally to the EDU.If all OK then as the others say it is probably the hook up cable.
 
  • Like
Reactions: toad a caravan
Mar 14, 2005
19,022
4,245
50,935
Hello Mattyd,

I am concerned about the nature of the correspondence in this thread, becasue your references to what has happened and what you have tried and what you haven't tried leaves me with a strong suspicion you may not feel competent with breaking down and working on electrical items.

Bearing in mind how dangerous electricity can be if its not managed correctly, I strongly suggest you ask someone who does know about electrics to check your systems and to help identify where the problem is and help to fix it.
 
Sep 23, 2023
1,282
544
1,435
If after trying a different EHU cable and it doesn't work then you have a problem that requires a competent person to further Investigate the fault as has been stated above, assuming the MCB/RCD have been reset correctly..Good luck Gary
 
Oct 8, 2006
2,023
709
19,935
Going right back to the beginning, the OP says that he overloaded the circuit by having' too many appliances connected' - what exactly does he mean? Is he talking about physical connections or is he talking about too much load? He also says the pillar tripped first but was it the RCD that tripped or the MCB? If the MCB tripped then it is a power issue which means he is talking about power load: if it was the RCD that tripped but the RCD in the van did not trip then the issue is the connection between the pillar and the power box in the van - and such an instance points to a problem with the EHU cable or connections.

I agree with Prof. The description so far suggests that the OP does not feel confident dealing with mains electricity and is thus at serious risk of injury or electrocution. I would suggest he contacts someone who knows what they are doing with mains. If he needs an electrician any electrician would be competent - it does not have to be a specialist caravan tech.
 
  • Like
Reactions: toad a caravan
Jul 29, 2022
92
43
4,585
Ok I’ve bought a new cable so will try tomorrow, any ideas if it still not that?
Check each pin (earth, live and neutral) from each end of your hook up cable with a continuity tester.(check the tester first by crossing the probes together, it should beep loudly). You're looking for a beep when each wire proves good, if it doesn't beep or is intermittent then there is a break somewhere. But before you plug it in again carefully slowly inspect the whole cable to make sure there isn't a crush, pinch or cut anywhere as that will be a dangerous cable and should be binned.
 
  • Like
Reactions: Hutch
Aug 30, 2025
5
5
15
Hello Mattyd,

I am concerned about the nature of the correspondence in this thread, becasue your references to what has happened and what you have tried and what you haven't tried leaves me with a strong suspicion you may not feel competent with breaking down and working on electrical items.

Bearing in mind how dangerous electricity can be if its not managed correctly, I strongly suggest you ask someone who does know about electrics to check your systems and to help identify where the problem is and help to fix it.
Thanks for the concern John, I wouldn’t work on the electrics, just trying to narrow down the issue.
 
  • Like
Reactions: ProfJohnL

TRENDING THREADS

Latest posts