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post #1 of 7 (permalink) Old 17-12-2021, 20:21 Thread Starter
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Odd Electrical Blackout

Hi. We have a 2002 Rapido 710F. After a six hour drive last Tuesday we arrived at our overnight campsite stop later than we had planned at 5pm so dark, drove onto our pitch and switched off the engine. Was switching the domestic lights on when suddenly we had a blackout, the entire domestic board was dead.

Dumbfounded, we were stuck for what to do, but we did need the loo as did our dog, so we satisfied the dog and checked out the toilet block.

On walking back to the campingcar we were very surprised to see all the lights back on. Got inside and it was though nothing had happened, all domestic electrics were working normally.

So what was going on, why did we have a blackout and how did it reset? The only thing I can think is that there is some trip - not mentioned anywhere in the manual - that tripped and then auto reset.

We did have the engine heater heating the whole vehicle up for the six hour trip, and most unusually for me I did leave the domestic electrics on for the drive which I don't normally do.

Anyone have any bright ideas what went on?

Chris
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post #2 of 7 (permalink) Old 17-12-2021, 20:41
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Originally Posted by Chris46 View Post
Hi. We have a 2002 Rapido 710F. After a six hour drive last Tuesday we arrived at our overnight campsite stop later than we had planned at 5pm so dark, drove onto our pitch and switched off the engine. Was switching the domestic lights on when suddenly we had a blackout, the entire domestic board was dead.

Dumbfounded, we were stuck for what to do, but we did need the loo as did our dog, so we satisfied the dog and checked out the toilet block.

On walking back to the campingcar we were very surprised to see all the lights back on. Got inside and it was though nothing had happened, all domestic electrics were working normally.

So what was going on, why did we have a blackout and how did it reset? The only thing I can think is that there is some trip - not mentioned anywhere in the manual - that tripped and then auto reset.

We did have the engine heater heating the whole vehicle up for the six hour trip, and most unusually for me I did leave the domestic electrics on for the drive which I don't normally do.

Anyone have any bright ideas what went on?

Chris

I am pretty clueless [ok, totally clueless] about electrics, so I'm probably wayoff beam, but were you on EHU when the lights failed? Some of the EHUs we've used have an auto reset button at the bollard after about a 30 seconds wait, so if the heating switching on coincided with the lights being on and tripping the bollard, the reset during a period when the heating wasn't firing up might explain it ...


Steve
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post #3 of 7 (permalink) Old 17-12-2021, 21:22 Thread Starter
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No Steve, hadn't got as far as getting out the car, so no EHU at that time
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post #4 of 7 (permalink) Old 17-12-2021, 22:19
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From your explanation it would appear that there is a major connection problem. As your vehicle is 19 years old I would suggest that it maybe down to a bad earth connection, probably somewhere on the chassis.

Work your way round the vehicle starting at the battery, cleaning as many joints and connectors as possible. A tedious job but without actually being in attendance it is all I can suggest.
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Last edited by Drew; 17-12-2021 at 22:42.
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post #5 of 7 (permalink) Old 17-12-2021, 23:29 Thread Starter
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Thanks Drew, good point re the age, I will look at that when I can.
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post #6 of 7 (permalink) Old 19-12-2021, 20:10
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I had a situation where my 12v electrics would go off then come on again later - I only knew this because the clock on the controller would be at the wrong time. It was quite random as to when it would happen. What eventually fixed it was when I pressed home all the fuses on the EBL. Tho none of them looked to be loose I'm guessing the 12v was cos I've had no trouble since.

I'd had some work done to the van shortly before that n I'm guessing that's when it was pulled n not replaced fully.
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post #7 of 7 (permalink) Old 20-12-2021, 10:03
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Not talking from knowledge or experience but from guessing what could cause such an effect. Could there be a relay somewhere designed to switch from vehicle battery (alternator) to leisure battery to power the 12v electrics when the ignition is turned off? And that relay is playing up.

And in this case the contact on one side of the relay was broken but not quite made on the other side. The "resetting" could simply be the spring in the relay eventually forcing the contacts together.

I do know that the are relays in MHs that switch 3 way fridges on and off the alternator and retract satellite dishes etc.
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